{"title":"Imperial BSPP Hexagon Head Pipe Plugs (DIN 910) - Marine Stainless Steel (A4)","description":"\u003ch2\u003eImperial BSPP Hexagon Head Pipe Plugs - DIN 910 | Marine Stainless Steel A4 (SUS316) | A4-50 | Pickled \u0026amp; Passivated\u003c\/h2\u003e\u003cp\u003eFULLERKREG DIN 910 imperial BSPP hexagon head screw plugs with collar in \u003cstrong\u003eA4 marine-grade stainless steel (SUS316 \/ EN 1.4401)\u003c\/strong\u003e, \u003cstrong\u003eA4-50 strength grade\u003c\/strong\u003e, \u003cstrong\u003epickled \u0026amp; passivated\u003c\/strong\u003e surface finish. The premium choice for BSP-threaded port sealing in saltwater, chemical, and aggressive industrial environments. G thread (ISO 228-1), sizes G 1\/8 to G 2.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eProduct Overview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 910\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e BSPP - ISO 228-1 \/ G Thread (parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A4 Marine Stainless Steel (SUS316 \/ EN 1.4401)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength Grade:\u003c\/strong\u003e A4-50 (ISO 3506-1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface:\u003c\/strong\u003e Pickled \u0026amp; Passivated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize Range:\u003c\/strong\u003e G 1\/8 to G 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e FULLERKREG\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eDimensions - DIN 910 BSPP \/ G Thread\u003c\/h3\u003e\u003cp\u003eAll dimensions in mm. Per DIN 910 standard and ISO 228-1.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eThread (G)\u003c\/th\u003e\n\u003cth\u003eTPI\u003c\/th\u003e\n\u003cth\u003eOD (mm)\u003c\/th\u003e\n\u003cth\u003eD1 (mm)\u003c\/th\u003e\n\u003cth\u003eL (mm)\u003c\/th\u003e\n\u003cth\u003eC (mm)\u003c\/th\u003e\n\u003cth\u003eB (mm)\u003c\/th\u003e\n\u003cth\u003eS\/AF (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\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\u003e11\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e12\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\u003e13\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e17\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\u003e14\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e19\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\u003e16\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e24\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\u003e18\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e27\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\u003e20\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e36\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\u003e22\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e46\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\u003e24\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e50\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\u003e68\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eMaterial \u0026amp; Mechanical Properties\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A4 \/ AISI 316 \/ SUS316 \/ EN 1.4401 - Austenitic stainless steel with molybdenum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolybdenum Content:\u003c\/strong\u003e 2-3% Mo - key to superior pitting and crevice corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength Class:\u003c\/strong\u003e A4-50 per ISO 3506-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile Strength:\u003c\/strong\u003e 500 N\/mm2 min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProof Load:\u003c\/strong\u003e 210 N\/mm2 min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e HV 200 max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface:\u003c\/strong\u003e Pickled \u0026amp; Passivated - removes free iron, maximises chromium oxide passive layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenerally non-magnetic\u003c\/strong\u003e in annealed condition\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eA4-50 for BSPP pipe plugs:\u003c\/strong\u003e A4-50 is the standard grade for DIN 910 stainless BSPP plugs. The annealed condition maximises corrosion resistance and ductility - the primary requirements for sealing applications in aggressive environments.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eSurface Treatment: Pickled \u0026amp; Passivated\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePickling:\u003c\/strong\u003e Acid treatment removes heat tint, scale, and free iron contamination from manufacturing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassivation:\u003c\/strong\u003e Rebuilds dense chromium oxide (Cr2O3) passive film for maximum corrosion protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResult:\u003c\/strong\u003e Bright silver-white surface - significantly better than as-machined stainless steel\u003c\/li\u003e\n\u003cli\u003eNo dimensional change - thread tolerances fully maintained\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-grade corrosion resistance:\u003c\/strong\u003e 2-3% molybdenum in SUS316 dramatically improves resistance to chloride pitting - essential for saltwater and coastal environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBSPP \/ G thread:\u003c\/strong\u003e Compatible with ISO 228-1 ports used in UK, EU, Asia, and Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace-sealing design:\u003c\/strong\u003e Use with bonded seal (dowty washer) or copper washer for pressure-tight joints\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN 910 compliant:\u003c\/strong\u003e Interchangeable with standard BSP fittings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegral collar:\u003c\/strong\u003e Consistent seating depth, prevents over-insertion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical resistance:\u003c\/strong\u003e Resistant to many acids, alkalis, and industrial chemicals\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSizes G 1\/8 to G 2 from stock\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMarine and offshore equipment - hull fittings, seawater systems\u003c\/li\u003e\n\u003cli\u003eShipbuilding and boat manufacturing (BSP-threaded systems)\u003c\/li\u003e\n\u003cli\u003eCoastal and harbour infrastructure\u003c\/li\u003e\n\u003cli\u003eChemical and petrochemical processing pipelines\u003c\/li\u003e\n\u003cli\u003ePharmaceutical and food processing (CIP systems)\u003c\/li\u003e\n\u003cli\u003eHydraulic manifold and valve block BSP port closures\u003c\/li\u003e\n\u003cli\u003eDesalination plants and water treatment facilities\u003c\/li\u003e\n\u003cli\u003eSwimming pool and spa equipment\u003c\/li\u003e\n\u003cli\u003ePneumatic system unused port sealing\u003c\/li\u003e\n\u003cli\u003eOEM production line fastener supply\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eStandards \u0026amp; Compliance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN 910\u003c\/strong\u003e - Hexagon Head Screw Plugs with Collar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO 228-1\u003c\/strong\u003e - BSPP \/ G thread standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO 3506-1\u003c\/strong\u003e - Stainless steel fastener mechanical properties\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBS 2779\u003c\/strong\u003e - British Standard pipe threads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS \/ REACH\u003c\/strong\u003e - Compliant\u003c\/li\u003e\n\u003cli\u003eMill Test Certificates (EN 10204 3.1) available on request\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eA4 (SUS316) vs A2 (SUS304) - Why Choose Marine Grade?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eA2 (SUS304)\u003c\/th\u003e\n\u003cth\u003eA4 (SUS316) - This Product\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Alloy\u003c\/td\u003e\n\u003ctd\u003e18% Cr, 8% Ni\u003c\/td\u003e\n\u003ctd\u003e16% Cr, 10% Ni, 2-3% Mo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolybdenum\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003e2-3% (pitting resistance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaltwater Resistance\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChloride Resistance\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003ctd\u003eSuperior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrength Grade\u003c\/td\u003e\n\u003ctd\u003eA2-50\u003c\/td\u003e\n\u003ctd\u003eA4-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eGeneral industrial\u003c\/td\u003e\n\u003ctd\u003eMarine, chemical, harsh environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eBSPP vs BSPT\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eBSPP (This Product)\u003c\/th\u003e\n\u003cth\u003eBSPT (Tapered)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Form\u003c\/td\u003e\n\u003ctd\u003eParallel\u003c\/td\u003e\n\u003ctd\u003eTapered 1:16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eISO 228-1 \/ G thread\u003c\/td\u003e\n\u003ctd\u003eISO 7-1 \/ R thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealing\u003c\/td\u003e\n\u003ctd\u003eFace seal + washer\/O-ring\u003c\/td\u003e\n\u003ctd\u003eThread interference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReusability\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterchangeable?\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eNo - do not mix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eOrdering \u0026amp; Packaging\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStandard bulk packaging: per 100 pcs or per 1000 pcs\u003c\/li\u003e\n\u003cli\u003eCustom quantities for OEM and production orders\u003c\/li\u003e\n\u003cli\u003eLabelled with thread size (G), grade (A4-50), surface treatment, and DIN 910\u003c\/li\u003e\n\u003cli\u003eMost sizes available from stock - fast dispatch\u003c\/li\u003e\n\u003cli\u003eMTC \/ EN 10204 3.1 certificates available on request\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What makes A4 better than A2 for marine use?\u003c\/strong\u003e\u003cbr\u003eA: A4 (SUS316) contains 2-3% molybdenum which dramatically improves resistance to chloride pitting and crevice corrosion - the primary failure mode in saltwater environments. A2 (SUS304) lacks molybdenum and is not recommended for prolonged saltwater exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is BSPP \/ G thread?\u003c\/strong\u003e\u003cbr\u003eA: BSPP uses a 55 degree Whitworth thread form with inch-based sizing (G1\/8, G1\/4, etc.). Not interchangeable with metric threads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How does a BSPP plug seal?\u003c\/strong\u003e\u003cbr\u003eA: Via the collar face - use a bonded seal (dowty washer) or copper washer. PTFE tape alone is not recommended for pressure sealing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Why A4-50 and not A4-70?\u003c\/strong\u003e\u003cbr\u003eA: A4-50 is the DIN 910 standard grade for stainless BSPP pipe plugs. Annealed condition gives maximum corrosion resistance and ductility for sealing applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Are Mill Test Certificates available?\u003c\/strong\u003e\u003cbr\u003eA: Yes. EN 10204 3.1 certificates available on request for all FULLERKREG A4 stainless fasteners.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use a BSPP plug in a BSPT port?\u003c\/strong\u003e\u003cbr\u003eA: No. BSPP and BSPT threads are not interchangeable. Always verify port thread type before ordering.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cem\u003eAll FULLERKREG DIN 910 BSPP marine stainless steel pipe plugs are manufactured to DIN and ISO standards. Contact FULLERKREG for bulk pricing, OEM supply, or technical support.\u003c\/em\u003e\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/imperial-bspp-hexagon-head-pipe-plugs-din-910-marine-stainless-steel-a4.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}