{"title":"Imperial BSPP Flat Head Socket Pipe Plugs (DIN 908) — Stainless Steel A2 (SUS304)","description":"\u003ch1\u003eImperial BSPP Flat Head Socket Pipe Plugs (DIN 908) — Stainless Steel A2 (SUS304)\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 908 imperial BSPP flat head socket pipe plugs are manufactured from A2 stainless steel (SUS304) to Grade A2-70, with a whitened and passivated surface finish. These plugs feature British Standard Pipe Parallel (BSPP \/ G thread) — the straight parallel pipe thread widely used in hydraulic and pneumatic systems across the UK, Europe, Asia, and Commonwealth markets.\u003c\/p\u003e\n\n\u003cp\u003eThe A2 stainless steel construction provides excellent corrosion resistance for outdoor, marine-adjacent, food-grade, and chemical environments where carbon steel plugs would corrode. The flat head with internal hexagon (Allen key) drive allows installation in recessed or confined port locations. A bonded seal (Dowty washer) or O-ring face seal is required to achieve a pressure-tight connection.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIN 908 (Imperial Pipe Thread — BSPP, Flat Head)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBSPP — British Standard Pipe Parallel (G thread) per ISO 228-1 \/ BS EN ISO 228\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhitworth 55° thread form, parallel (straight) — does NOT self-seal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlat head (flush) with internal hexagon (Allen key) drive\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSealing Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlat face — requires bonded seal (Dowty washer) or O-ring face seal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA2 Stainless Steel \/ SUS304 \/ 1.4301\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhitened \u0026amp; Passivated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eG1\/8 — G2 (BSPP)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrive Tool\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInternal hexagon (Allen key) per ISO 2936\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKey Advantage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless corrosion resistance + BSPP thread — ideal for corrosive or hygienic environments with G-thread ports\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 1]\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 2]\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 3]\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 4]\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDimensional Data — DIN 908 BSPP Flat Head Socket Pipe Plugs\u003c\/h2\u003e\n\u003cp\u003eAll dimensions in millimeters (mm) unless noted. Thread sizes in BSP (G) designation. Data per DIN 908 standard \/ ISO 228-1.\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eThread (G)\u003c\/th\u003e\n      \u003cth\u003eTPI\u003c\/th\u003e\n      \u003cth\u003eThread Ø (mm)\u003c\/th\u003e\n      \u003cth\u003es — A\/F (mm)\u003c\/th\u003e\n      \u003cth\u003ee — A\/C (mm)\u003c\/th\u003e\n      \u003cth\u003ek — Head Height (mm)\u003c\/th\u003e\n      \u003cth\u003et — Socket Depth (mm)\u003c\/th\u003e\n      \u003cth\u003eSealing Ø (mm)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1\/8\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e9.728\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e16.2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1\/4\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e13.157\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e21.9\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 3\/8\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e16.662\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1\/2\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e20.955\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e31.2\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 5\/8\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e22.911\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e34.6\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 3\/4\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e26.441\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e36.9\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 7\/8\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e30.201\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e41.6\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e33.249\u003c\/td\u003e\n\u003ctd\u003e41\u003c\/td\u003e\n\u003ctd\u003e47.3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1 1\/8\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e37.897\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e53.1\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1 1\/4\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e41.910\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e57.7\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e42\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1 1\/2\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e47.803\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e48\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 1 3\/4\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e53.746\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e69.3\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG 2\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e59.614\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e75.1\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e* s = across flats (A\/F); e = across corners (A\/C); k = head height; t = minimum socket depth; TPI = threads per inch. All dimensions per DIN 908 \/ ISO 228-1.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eAllen Key (Hex Key) Size Reference\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eThread\u003c\/th\u003e\n      \u003cth\u003eG1\/8\u003c\/th\u003e\n\u003cth\u003eG1\/4\u003c\/th\u003e\n\u003cth\u003eG3\/8\u003c\/th\u003e\n\u003cth\u003eG1\/2\u003c\/th\u003e\n\u003cth\u003eG3\/4\u003c\/th\u003e\n\u003cth\u003eG1\u003c\/th\u003e\n\u003cth\u003eG1¼\u003c\/th\u003e\n\u003cth\u003eG1½\u003c\/th\u003e\n\u003cth\u003eG2\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eHex Key (mm)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMaterial \u0026amp; Grade Properties\u003c\/h2\u003e\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\u003eMaterial Designation\u003c\/td\u003e\n\u003ctd\u003eA2 \/ SUS304 \/ 1.4301 \/ 0Cr18Ni9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProperty Class\u003c\/td\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTensile Strength (Rm)\u003c\/td\u003e\n\u003ctd\u003e≥ 700 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0.2% Proof Stress (Rp0.2)\u003c\/td\u003e\n\u003ctd\u003e≥ 450 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003e≤ 250 HV\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd\u003eGood — suitable for general outdoor, food-grade, and mild chemical environments\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMagnetic\u003c\/td\u003e\n\u003ctd\u003eSlightly magnetic after cold working\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSurface Finish\u003c\/td\u003e\n\u003ctd\u003eWhitened \u0026amp; Passivated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e−50°C to +300°C (continuous service)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eBSPP (G Thread) — Key Facts\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread form:\u003c\/strong\u003e Whitworth 55° parallel thread — constant diameter along thread length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ISO 228-1 \/ BS EN ISO 228 — also known as G thread or BSP parallel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes NOT self-seal:\u003c\/strong\u003e Parallel thread requires a bonded seal (Dowty washer) or O-ring face seal for pressure-tight connection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon markets:\u003c\/strong\u003e UK, Europe, Asia, Commonwealth — dominant thread in hydraulic and pneumatic systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNot interchangeable with BSPT (R thread):\u003c\/strong\u003e Despite similar pitch, BSPP and BSPT are different thread forms and must not be mixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize designation:\u003c\/strong\u003e G1\/8, G1\/4, G3\/8, G1\/2 … G2 — the number refers to the nominal bore of the pipe, not the actual thread diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSealing \u0026amp; Installation Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread type:\u003c\/strong\u003e BSPP (G thread) is a parallel thread — it does NOT self-seal. A bonded seal (Dowty washer) or O-ring face seal is mandatory for pressure-tight installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended sealant:\u003c\/strong\u003e Bonded seal (Dowty washer) in stainless-compatible material (e.g. stainless outer ring with NBR or Viton rubber) sized to match thread designation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo NOT use PTFE tape:\u003c\/strong\u003e PTFE tape is designed for tapered threads (BSPT\/NPT) and is not effective as a primary sealant for BSPP parallel threads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePort compatibility:\u003c\/strong\u003e BSPP (G) plugs fit BSPP-tapped ports only. Do NOT install in BSPT (R thread) tapered ports.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGalvanic compatibility:\u003c\/strong\u003e A2 stainless is compatible with most stainless steel and aluminium components. Avoid direct contact with carbon steel in wet environments to prevent galvanic corrosion of the carbon steel part.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorque:\u003c\/strong\u003e Apply recommended torque per thread size. Do not over-torque — stainless threads can gall (seize) if over-torqued without lubrication.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-galling:\u003c\/strong\u003e Apply a small amount of anti-seize compound (e.g. copper-based or nickel-based) to threads before installation to prevent galling on stainless-to-stainless connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRe-use:\u003c\/strong\u003e Replace bonded seal on each re-installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e🔧 \u003cstrong\u003eHydraulic systems\u003c\/strong\u003e — sealing unused BSPP ports on stainless manifolds, cylinders, and valve blocks in corrosive or food-grade environments\u003c\/li\u003e\n  \u003cli\u003e💨 \u003cstrong\u003ePneumatic equipment\u003c\/strong\u003e — closing unused G-thread ports on stainless pneumatic valves and fittings\u003c\/li\u003e\n  \u003cli\u003e🍼 \u003cstrong\u003eFood \u0026amp; beverage \/ pharmaceutical\u003c\/strong\u003e — hygienic port closures in food-grade processing equipment with BSPP ports\u003c\/li\u003e\n  \u003cli\u003e🌊 \u003cstrong\u003eMarine \u0026amp; coastal\u003c\/strong\u003e — sealing G-thread ports in marine hydraulic and fluid systems where carbon steel would corrode\u003c\/li\u003e\n  \u003cli\u003e🧪 \u003cstrong\u003eChemical processing\u003c\/strong\u003e — port closures in mild chemical environments where A2 stainless provides adequate resistance\u003c\/li\u003e\n  \u003cli\u003e⚙️ \u003cstrong\u003eMachine tools\u003c\/strong\u003e — coolant and lubrication circuit port closures with BSPP ports requiring stainless for hygiene or corrosion resistance\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 this plug and the carbon steel BSPP version?\u003c\/strong\u003e\u003cbr\u003e\nA: This plug is manufactured from A2 stainless steel (SUS304) providing significantly better corrosion resistance than carbon steel (black oxide or zinc plated). Choose A2 stainless when the installation environment is corrosive, humid, outdoor, food-grade, or marine-adjacent. Choose carbon steel when cost is the primary consideration and the environment is dry or oil-wetted indoors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does BSPP (G thread) self-seal?\u003c\/strong\u003e\u003cbr\u003e\nA: No. BSPP is a parallel (straight) thread — it does not self-seal through thread interference. A bonded seal (Dowty washer) or O-ring face seal must be used. Do not use PTFE tape as a primary sealant for BSPP connections.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can stainless steel threads gall (seize)?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Stainless steel is susceptible to galling (cold welding \/ thread seizure) when stainless threads are torqued against stainless ports without lubrication. Apply a small amount of anti-seize compound (copper-based or nickel-based) to the threads before installation to prevent galling.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is A2 stainless suitable for seawater applications?\u003c\/strong\u003e\u003cbr\u003e\nA: A2 (SUS304) provides good general corrosion resistance but is not recommended for continuous seawater immersion or high-chloride environments. For marine and offshore applications with direct seawater exposure, specify A4 (SUS316) grade instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I identify if my port is BSPP or BSPT?\u003c\/strong\u003e\u003cbr\u003e\nA: Measure the thread diameter at multiple points along the thread length. BSPP threads maintain a constant diameter; BSPT threads taper (reduce in diameter) along the thread length. When in doubt, consult the equipment manufacturer’s documentation or contact FULLERKREG for assistance.\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/imperial-bspp-flat-head-socket-pipe-plugs-din-908-stainless-steel-a2.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}