{"title":"DIN 915 \/ ISO 4028 Socket Set Screw with Dog Point A2 Stainless","description":"\u003ch2\u003eDIN 915 \/ ISO 4028 — Socket Set Screw with Dog Point | A2 Stainless Steel | Bright Passivated\u003c\/h2\u003e\n\n\u003cp\u003eFULLERKREG DIN 915 \/ ISO 4028 socket set screws (grub screws) with dog point are manufactured to full DIN and ISO dimensional standards in \u003cstrong\u003eA2 stainless steel (SUS 304)\u003c\/strong\u003e with a \u003cstrong\u003ebright passivated surface finish\u003c\/strong\u003e. The precision-ground cylindrical dog point provides positive mechanical location and engagement, making these set screws the definitive choice for precision positioning, indexing, and shaft-locking applications in corrosion-resistant environments — including food processing, pharmaceutical, laboratory, marine, and general industrial use.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eDIN 915 \/ ISO 4028\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSocket Set Screw (Grub Screw) — Dog Point\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDrive\u003c\/td\u003e\n\u003ctd\u003eHexagon Socket (Hex Allen Key)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eA2 Stainless Steel (SUS 304 \/ 1.4305)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProperty Class\u003c\/td\u003e\n\u003ctd\u003eA2-70 (per ISO 3506-3)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003eBright Passivated (Electrochemical Passivation)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003eMetric Coarse Thread (ISO 68-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eThread Tolerance\u003c\/td\u003e\n\u003ctd\u003e6H (internal) \/ 6g (external) per ISO 965\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003eMin. 700 MPa (A2-70)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eMax. 220 HV (Vickers)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSize Range\u003c\/td\u003e\n\u003ctd\u003eM3 — M20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLength Range\u003c\/td\u003e\n\u003ctd\u003e5 mm — 60 mm (size-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePoint Type\u003c\/td\u003e\n\u003ctd\u003eDog Point (Extended Cylindrical Pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHead Type\u003c\/td\u003e\n\u003ctd\u003eFully Threaded, Headless (Grub)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Dimensions (DIN 915 \/ ISO 4028)\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eThread (d)\u003c\/th\u003e\n      \u003cth\u003eHex Key (s)\u003c\/th\u003e\n      \u003cth\u003eDog Point Dia. (dp) h8\u003c\/th\u003e\n      \u003cth\u003eDog Point Length (t) min.\u003c\/th\u003e\n      \u003cth\u003eCommon Lengths (l)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e1.5 mm\u003c\/td\u003e\n\u003ctd\u003e2.0 mm\u003c\/td\u003e\n\u003ctd\u003e1.5 mm\u003c\/td\u003e\n\u003ctd\u003e5, 6, 8, 10, 12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e2.0 mm\u003c\/td\u003e\n\u003ctd\u003e2.5 mm\u003c\/td\u003e\n\u003ctd\u003e2.0 mm\u003c\/td\u003e\n\u003ctd\u003e6, 8, 10, 12, 16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e2.5 mm\u003c\/td\u003e\n\u003ctd\u003e3.5 mm\u003c\/td\u003e\n\u003ctd\u003e2.5 mm\u003c\/td\u003e\n\u003ctd\u003e8, 10, 12, 16, 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e3.0 mm\u003c\/td\u003e\n\u003ctd\u003e4.0 mm\u003c\/td\u003e\n\u003ctd\u003e3.0 mm\u003c\/td\u003e\n\u003ctd\u003e8, 10, 12, 16, 20, 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e4.0 mm\u003c\/td\u003e\n\u003ctd\u003e5.5 mm\u003c\/td\u003e\n\u003ctd\u003e4.0 mm\u003c\/td\u003e\n\u003ctd\u003e10, 12, 16, 20, 25, 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e5.0 mm\u003c\/td\u003e\n\u003ctd\u003e7.0 mm\u003c\/td\u003e\n\u003ctd\u003e5.0 mm\u003c\/td\u003e\n\u003ctd\u003e12, 16, 20, 25, 30, 40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e6.0 mm\u003c\/td\u003e\n\u003ctd\u003e8.5 mm\u003c\/td\u003e\n\u003ctd\u003e6.0 mm\u003c\/td\u003e\n\u003ctd\u003e16, 20, 25, 30, 40, 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e8.0 mm\u003c\/td\u003e\n\u003ctd\u003e11.0 mm\u003c\/td\u003e\n\u003ctd\u003e8.0 mm\u003c\/td\u003e\n\u003ctd\u003e20, 25, 30, 40, 50, 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM20\u003c\/td\u003e\n\u003ctd\u003e10.0 mm\u003c\/td\u003e\n\u003ctd\u003e14.0 mm\u003c\/td\u003e\n\u003ctd\u003e10.0 mm\u003c\/td\u003e\n\u003ctd\u003e25, 30, 40, 50, 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eDog point diameter (dp) is ground to h8 tolerance per DIN 915 \/ ISO 4028 for precise hole engagement. All dimensions per DIN 915 \/ ISO 4028. Consult FULLERKREG datasheet or contact us for full tolerance tables.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDog Point — Design \u0026amp; Function\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003edog point\u003c\/strong\u003e is a precision-ground cylindrical pin extension that protrudes beyond the threaded body of the set screw. Unlike friction-only point types (flat, cup, cone), the dog point engages a matching hole or slot in the mating shaft or component, providing \u003cstrong\u003epositive mechanical location\u003c\/strong\u003e independent of clamping force alone.\u003c\/p\u003e\n\n\u003ch3\u003eKey Functional Advantages\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePositive axial location\u003c\/strong\u003e — the dog point engages a drilled hole in the shaft, preventing axial movement regardless of vibration or load reversal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePositive rotational location\u003c\/strong\u003e — when engaged in a hole or slot, prevents shaft rotation relative to the hub without relying solely on friction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRepeatable repositioning\u003c\/strong\u003e — the set screw can be removed and reinstalled with the component returning to exactly the same position; ideal for indexed or adjustable assemblies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo shaft damage\u003c\/strong\u003e — the cylindrical dog point engages a pre-drilled hole cleanly; no marring, indenting, or deformation of the shaft surface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeyway-free design\u003c\/strong\u003e — eliminates the need for a keyway on the shaft, simplifying shaft machining and reducing stress concentrations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion-resistant engagement\u003c\/strong\u003e — A2 stainless construction ensures the dog point itself does not corrode or seize in the shaft hole, maintaining clean disassembly in service environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDog Point vs. Other Set Screw Point Types\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePoint Type\u003c\/th\u003e\n      \u003cth\u003eStandard\u003c\/th\u003e\n      \u003cth\u003eHolding Mechanism\u003c\/th\u003e\n      \u003cth\u003eRepositionable\u003c\/th\u003e\n      \u003cth\u003eShaft Damage\u003c\/th\u003e\n      \u003cth\u003eBest For\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFlat Point\u003c\/td\u003e\n\u003ctd\u003eDIN 913 \/ ISO 4026\u003c\/td\u003e\n\u003ctd\u003eFriction only\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eNon-marring, frequent adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCup Point\u003c\/td\u003e\n\u003ctd\u003eDIN 916 \/ ISO 4029\u003c\/td\u003e\n\u003ctd\u003eFriction + indent\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003ctd\u003eCircular indent\u003c\/td\u003e\n\u003ctd\u003ePermanent locking, soft shafts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCone Point\u003c\/td\u003e\n\u003ctd\u003eDIN 914 \/ ISO 4027\u003c\/td\u003e\n\u003ctd\u003eFriction + deep indent\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eDeep indent\u003c\/td\u003e\n\u003ctd\u003ePermanent location, V-groove\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDog Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDIN 915 \/ ISO 4028\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFriction + positive pin engagement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNone (pre-drilled hole)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePrecision location, indexing, keyway-free\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOval Point\u003c\/td\u003e\n\u003ctd\u003eISO 4026 variant\u003c\/td\u003e\n\u003ctd\u003eFriction only\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eMinimal\u003c\/td\u003e\n\u003ctd\u003eCurved surfaces, pivot points\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMaterial — A2 Stainless Steel (SUS 304)\u003c\/h2\u003e\n\n\u003ch3\u003eChemical Composition\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChromium (Cr):\u003c\/strong\u003e 17.5 – 19.5%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNickel (Ni):\u003c\/strong\u003e 8.0 – 10.5%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon (C):\u003c\/strong\u003e ≤ 0.08%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManganese (Mn):\u003c\/strong\u003e ≤ 2.0%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSilicon (Si):\u003c\/strong\u003e ≤ 1.0%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Austenitic stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMechanical Properties — A2-70 (per ISO 3506-3)\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTensile Strength (Rm)\u003c\/td\u003e\n\u003ctd\u003eMin. 700 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProof Load Stress (Sp)\u003c\/td\u003e\n\u003ctd\u003eMin. 450 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eMax. 220 HV (Vickers)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMagnetic\u003c\/td\u003e\n\u003ctd\u003eNon-magnetic (annealed state)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e−196°C to +300°C continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCorrosion Resistance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eExcellent resistance to atmospheric corrosion, humidity, and moisture\u003c\/li\u003e\n  \u003cli\u003eResistant to mild acids, alkalis, and most organic chemicals\u003c\/li\u003e\n  \u003cli\u003eSuitable for food contact and hygienic applications\u003c\/li\u003e\n  \u003cli\u003eNot recommended for prolonged exposure to chloride-rich environments (seawater, salt spray) — consider A4 (SUS 316) for such conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSurface Finish — Bright Passivated\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProcess:\u003c\/strong\u003e Electrochemical passivation — removes free iron and surface contaminants from the stainless steel surface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffect:\u003c\/strong\u003e Restores and enhances the natural chromium oxide passive layer, maximizing the inherent corrosion resistance of A2 stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAppearance:\u003c\/strong\u003e Bright, clean, silver finish — no coating thickness added, no dimensional change; dog point h8 tolerance is fully maintained\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompliant with:\u003c\/strong\u003e ASTM A967 \/ ISO 16048 passivation standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo hydrogen embrittlement risk:\u003c\/strong\u003e No electroplating involved\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHygienic:\u003c\/strong\u003e Smooth, non-porous surface with no coating to flake or contaminate; suitable for food, pharmaceutical, and clean-room environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\n\u003cp\u003eThe combination of A2 stainless steel, bright passivated finish, and dog point positive engagement makes these set screws the preferred choice for precision applications in corrosion-resistant environments:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFood \u0026amp; Beverage Processing:\u003c\/strong\u003e Locating conveyor components, agitator shafts, and filling machine parts where hygiene, wash-down resistance, and non-contamination are required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePharmaceutical \u0026amp; Medical:\u003c\/strong\u003e Precision location of components in clean-room equipment, sterilizable assemblies, and laboratory instruments requiring non-magnetic, non-reactive fasteners\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLaboratory \u0026amp; Scientific Instruments:\u003c\/strong\u003e Indexing and positioning optical components, sample stages, and measurement fixtures requiring repeatable, corrosion-free location\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine \u0026amp; Coastal (Splash Zone):\u003c\/strong\u003e Locating components in deck hardware, rigging, and marine equipment exposed to salt spray and humidity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChemical Processing:\u003c\/strong\u003e Securing and locating components in equipment handling mild acids, alkalis, and process fluids\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectronics \u0026amp; Automation:\u003c\/strong\u003e Non-magnetic location of encoder discs, servo motor shafts, and sensor components in sensitive assemblies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGeneral Precision Machinery:\u003c\/strong\u003e Securing pulleys, gears, couplings, and collars to shafts at precise axial positions with repeatable disassembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndexing \u0026amp; Detent Mechanisms:\u003c\/strong\u003e Engaging indexing holes in rotary tables, dividing heads, and adjustable fixtures for repeatable angular positioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eInstallation Guidelines\u003c\/h2\u003e\n\n\u003ch3\u003eShaft Hole Preparation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDrill a hole in the shaft at the desired location to match the dog point diameter (dp) — refer to the dimension table above\u003c\/li\u003e\n  \u003cli\u003eRecommended hole tolerance: H8 (clearance fit with dog point h8) for easy engagement and removal; H7 for tighter location with minimal play\u003c\/li\u003e\n  \u003cli\u003eHole depth should be at least equal to the dog point length (t) plus 0.5 mm clearance at the bottom\u003c\/li\u003e\n  \u003cli\u003eDeburr the hole entrance to prevent galling on the dog point during engagement\u003c\/li\u003e\n  \u003cli\u003eFor indexed applications, use a jig or dividing head to ensure hole positions are accurately located\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Procedure\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread engagement:\u003c\/strong\u003e Minimum engagement length = 1× nominal diameter (e.g., M6 requires min. 6 mm engagement)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlignment:\u003c\/strong\u003e Align the dog point with the shaft hole before tightening; partial engagement will damage the dog point and hole\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTightening torque:\u003c\/strong\u003e Use a calibrated torque wrench — refer to the torque table below\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-galling lubrication:\u003c\/strong\u003e Apply molybdenum disulfide paste or PTFE-based lubricant to threads before installation; stainless-to-stainless assemblies are particularly susceptible to galling — lubrication is essential\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex key:\u003c\/strong\u003e Use the correct size hex key (Allen key) — see dimension table above\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e For vibration-prone applications, apply medium-strength thread-locking adhesive to the threads before installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo not over-torque:\u003c\/strong\u003e A2 stainless has lower hardness than alloy steel; over-torquing risks thread stripping or socket rounding\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eRecommended Tightening Torques (A2-70, MoS₂ Lubricated)\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003cth\u003eTorque (N·m) — Reference\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e0.30 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e0.70 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e1.40 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e2.40 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e5.80 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e11.5 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e20.0 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e49.0 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM20\u003c\/td\u003e\n\u003ctd\u003e96.0 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eReference values for MoS₂-lubricated A2-70 stainless steel set screws. For dry installation, increase values by approximately 15–20%. Always verify with your engineering team for safety-critical applications. Note: lubrication is strongly recommended for stainless-to-stainless assemblies to prevent galling.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eStandards \u0026amp; Compliance\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN 915\u003c\/strong\u003e — Socket set screws with hexagon socket and long dog point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO 4028\u003c\/strong\u003e — Hexagon socket set screws with long dog point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO 3506-3\u003c\/strong\u003e — Mechanical properties of corrosion-resistant stainless steel fasteners (set screws); A2-70 property class\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN 267-11\u003c\/strong\u003e — Technical delivery conditions for fasteners; stainless steel property classes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO 965-1\u003c\/strong\u003e — Metric screw thread tolerances\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eASTM A967 \/ ISO 16048\u003c\/strong\u003e — Passivation of stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoHS 2011\/65\/EU\u003c\/strong\u003e — Restriction of hazardous substances compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003ePackaging \u0026amp; Ordering\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAvailable in standard retail packs, engineering bulk packs, and full-box quantities\u003c\/li\u003e\n  \u003cli\u003eCustom quantity packaging available for OEM and wholesale customers\u003c\/li\u003e\n  \u003cli\u003eEach pack labeled with: Part number, Thread size × Length, Material (A2), Standard (DIN 915 \/ ISO 4028), Surface (Bright Passivated), Quantity\u003c\/li\u003e\n  \u003cli\u003eBulk orders: contact FULLERKREG for volume pricing and lead times\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e100% dimensional inspection on critical sizes per DIN 915 \/ ISO 4028, including dog point diameter (h8 tolerance)\u003c\/li\u003e\n  \u003cli\u003eMaterial certification (Mill Test Certificate) available on request — confirms A2 \/ SUS 304 composition\u003c\/li\u003e\n  \u003cli\u003eHardness and tensile testing per ISO 3506-3 batch requirements\u003c\/li\u003e\n  \u003cli\u003eThread gauge inspection (Go\/No-Go) per ISO 965\u003c\/li\u003e\n  \u003cli\u003eDog point concentricity and surface finish verified on sample basis per batch\u003c\/li\u003e\n  \u003cli\u003eSalt spray corrosion testing available for qualification batches\u003c\/li\u003e\n  \u003cli\u003eTraceability: heat number and batch records maintained\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between DIN 915 and ISO 4028?\u003c\/strong\u003e\u003cbr\u003e\nA: DIN 915 and ISO 4028 are technically equivalent standards for socket set screws with long dog point. DIN 915 is the German standard; ISO 4028 is the international equivalent. Dimensions and tolerances are identical — parts are fully interchangeable.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is a dog point and how does it work?\u003c\/strong\u003e\u003cbr\u003e\nA: A dog point is a precision-ground cylindrical pin extension beyond the threaded body of the set screw. It engages a pre-drilled hole in the mating shaft, providing positive mechanical location — both axially and rotationally — independent of friction alone. The assembly can be disassembled and reassembled to exactly the same position, making it ideal for indexed and adjustable applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What hole size should I drill in the shaft for the dog point?\u003c\/strong\u003e\u003cbr\u003e\nA: The dog point is manufactured to h8 tolerance. For standard engagement, drill the shaft hole to H8 tolerance (clearance fit) for easy assembly and disassembly. For tighter location with minimal play, use H7. Refer to the dimension table above for the dog point diameter (dp) for each thread size.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why is lubrication especially important for A2 stainless set screws?\u003c\/strong\u003e\u003cbr\u003e\nA: Stainless steel is particularly susceptible to galling — a form of adhesive wear where the threads seize and weld together during tightening. This is especially common in stainless-to-stainless assemblies. Applying an anti-galling lubricant (MoS₂ paste or PTFE compound) before installation is essential to prevent galling and ensure accurate torque application.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can A2 stainless dog point set screws be used in food processing equipment?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. A2 (SUS 304) stainless steel is widely accepted for food contact applications. The bright passivated finish provides a smooth, non-porous, non-contaminating surface. For wash-down environments with chloride-containing cleaning agents, consider A4 (SUS 316) for enhanced chloride resistance. Contact FULLERKREG for A4 options.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the dog point set screw replace a key-and-keyway connection?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, in many applications. The dog point engaging a drilled hole in the shaft provides both axial and rotational location without requiring a keyway. This simplifies shaft manufacturing and allows the connection point to be repositioned. For very high torque transmission, consult your engineering team to verify the dog point engagement is sufficient for the applied loads.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What hex key (Allen key) size do I need?\u003c\/strong\u003e\u003cbr\u003e\nA: Refer to the dimension table above. Examples: M3 requires a 1.5 mm hex key; M6 requires a 3.0 mm hex key; M10 requires a 5.0 mm hex key.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are these RoHS compliant?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. FULLERKREG A2 stainless dog point set screws are manufactured without restricted hazardous substances and are RoHS 2011\/65\/EU compliant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I get a material test certificate (MTC)?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. FULLERKREG provides Mill Test Certificates on request, confirming the A2 \/ SUS 304 stainless steel chemical composition.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cem\u003eFULLERKREG — Precision Fasteners to DIN \/ ISO Standards. For technical support, custom sizes, or bulk quotations, please contact our engineering team.\u003c\/em\u003e\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/din-915-iso-4028-socket-set-screw-with-dog-point-a2-stainless.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}