Qbh Carbon Steel DIN557 Fastener Square Nuts

  Product DescriptionMetric DIN 557 regular pattern square nuts are four sided nuts. Their geometry provides a greatersurface area to apply higher torque when tightening and also a greater surface are in contact withthe part being fastened, thereby increasing the resistance to loosening.Product ParametersSquare Nuts Our expertise enables us to manufacture, export and supply a broad range of Square Nuts.Offered nuts are designed with high level of accuracy in tandem with the international standards.Manufactured using superior quality raw material with the help of advanced technology;  StyleSquare NutsStandardDIN, ANSI, JIS, GB, BS, ISO, etc.SupplierQBHSizeM5-M20Class4.8, 5.8, 6.8, 8.8, 10.9, 12.9Coatingblack, zinc, HDG, Heat treatment, plain, etc.MaterialCarbon steelPackingbulk/ boxes in cartons, bulk in poly bags/ buckets, etc.Palletsolid wood pallet, plywood pallet, ton box/bag, etc.Shipment PortShanghai & NingboDIN 557 - Square NutsCurrent norm: DIN 557Equivalent norms: CSN 021624; PN 82151; UNI 5597;Legend:m - height of the nutd - the nominal diameter of the threads - size squaremw - heightMakings:QBHSteel: 6  8Stainless: A2, A4Plastic: -Non Ferrous: -Thread: 7H Table according to DIN 557:dimensions in mmdimensions in mmThreadsize dM5M6M8M10M12M16ItemCarbon Steel DIN557 Fastener Square NutsSupplierQBHP0,811,251,51,752dwmin.6,78,711,514,515,516,517,222emax.11,314,118,422,62425,426,933,9min.9,9312,5316,3420,2421,5422,8424,0230,11mNominal size max.456,581013min.3,524,525,927,429,4212,3mwmin.2,53,24,15,26,68,6sNominal size max.810131617181924min.7,649,6412,5715,5716,5717,5718,4823,16weightkg/1000pcs1,312,775,510,71316,319,138,2  Process flow Cold forgingAnnealing treatment(if need) ->  Wiredrawing -> Clod Forging -> Tapping -> Make Heat Treatment(if need) -> Finish -> Packing  Product Grade Class 6 and 8  Materials and Chemical Compstition 1008QBH Carbon Steel DIN557 Fastener Square Nuts CHEMICAL COMPOSI %CSiMnPSCrNiCuAl0.060.060.330.0130.0030.0100.010.028  1035QBH Carbon Steel DIN557 Fastener Square Nuts CHEMICAL COMPOSI %CSiMnPSCrNiCu0.340.130.730.0120.0020.020.010.02  FinishPLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON  PackingQbh Bulk20-25kg/Ctn,36ctns/Pallet20-30kg/Bags,36bags/PalletOne Ton/Boxes50kg/ Iron Drum,12 Iron Drums/PalletQbh Small PackingPacking In Small Boxes According To Customer's RequirementsPacking In Plastic Bag According To Customer's RequirementsQbh Pallet TypeSolid Wood Fumigation PalletEuro PalletThree Splint PalletWooden BoxMechanical PropertTESTING STANDARD:DIN267- 4 OR ISO898-2SIZECLASS0405PROOF LOADN/mm2HVNUTPROOF LOADN/mm2HVNUT>≤minmaxHEAT TREATMENTTYPEminmaxHEAT TREATMENTTYPEItemCarbon Steel DIN557 Fastener Square NutsSupplierQBH/M4380188302NOTHIN NUT500272353YESTHIN NUTM4M7M7M10M10M16M16M39SIZECLASS45PROOF LOADN/mm2HVNUTPROOF LOADN/mm2HVNUT>≤minmaxHEAT TREATMENTTYPEminmaxHEAT TREATMENTTYPE/M4/////520130302NO1M4M7580M7M10590M10M16610M16M39510117302NO1630146SIZECLASS68PROOF LOADN/mm2HVNUTPROOF LOADN/mm2HVNUT>≤minmaxHEAT TREATMENTTYPEminmaxHEAT TREATMENTTYPE/M4600150302NO1800180302NO1M4M7670855200M7M10680870M10M16700880M16M39720170920233353YESSIZECLASS89PROOF LOADN/mm2HVNUTPROOF LOADN/mm2HVNUT>≤minmaxHEAT TREATMENTTYPEminmaxHEAT TREATMENTTYPE/M4/////900170302NO2M4M7915188M7M10940M10M16950M16M39890180302NO2920SIZECLASS1012PROOF LOADN/mm2HVNUTPROOF LOADN/mm2HVNUT>≤minmaxHEAT TREATMENTTYPEminmaxHEAT TREATMENTTYPE/M41040272353YES11140295353YES1M4M710401140M7M1010401140M10M1610501140M16M391060/////SIZECLASS12PROOF LOADN/mm2HVNUT>≤minmaxHEAT TREATMENTTYPE/M41150272353YES2M4M71150M7M101160M10M161190M16M391200 Detailed PhotosCertifications & PackagingFAQOur ServicesProfessional Manufacturer: All of our Fastener are designed and manufactured according to buyers' specification and performance.Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.Cost effective: Competitive prices with professional factory supplyPerfect fastening solution with 15+ years experiences to solve your problem: Wide range of parts selection.Customized Ideal Fasteners: customized services according to the samples and drawings offeredFree Samples for Standard Fastener from Jiaxing City Qunbang Hardware We Promise:1.High quality2. Competitive price3. The shortest delivery4. The fastest response5. The best serviceFAQ1.What's your experience like?Our general manager has been engaged in the export of fasteners since 2005. Our team can provide you with professional fasteners selling and smooth export services.2.How about your price?High quality products with reasonable price. Please give me a inquire, We will quoted you a price for you refer at once.3. How do you control your quality?We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.4.How about your delivery time?General speaking, if the goods is in stock, we can delivery them with 2-5days,