Stainless Steel Fasteners

Application Of Stainless Steel Bolts and Nuts

Petrochemicals

Power Generation

Pharmaceuticals

Heat Exchangers

Specification List Of SS Fasteners

DIN Standard	B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS	NPT, UNS, UNF, UNC, UNEF, NPTF
ISO	ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Grade	A2-70, 18-8 Stainless Steel,4.8, A4-70, A4, 8.8, A2, A4-80 Hex Bolt
British standards	BS6105 (old: BSENISO 3506) which covers Part 1 Bolt, screw and Us, part 2 nuts and part 4 tapping screws.
Length	3 to 200 mm
SS Fasteners Threads:	METRIC, BSW, UNC, UNF, BSF or as required
Tolerance	+/-0.01 to +/-0.05 millimeter
Head drive:	Slotted, Phillips, Six-Lobe, Phillips/Slot etc
Finishing:	black oxide, (yellow, black, blue), Dacroment, Zinc white, some special one like DACROMET and Mechanically Applied coating, plated zinc-nickel, Geometry, nickel plated, anodizing, Stainless steel: Passivated Bright Zinc Plated (BZP), Self-Colour, Sherardized, Hot Dip Galvanised (HDG)
SS Fasteners Standard:	ISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards ANSI ASME B18.5 ANSI B 28.2.4 1M GB/T5783, GB/T5782, GB5783 length are defined in ASME B16.5 standard Hexagon Bolt ANSI B 18.2.4 2M defined in ASME B18.2.2 are Hex nuts
Manufacturing process	Inspection, nsert tapping, Wire Drawing, Heat Treatment, Cold Heading, surface Plating, Packing
Surface treatment	Passivation Polish Sand blasting Black oxide coating Anodizing Heat-disposing Hot dip galvanized Hex Bolt Electroplating ( blue, color, white, Ni, black zinc, tin, Cr, silver, copper)
Stainless Steel Fasteners Packing:	IN BULK: pallet, canton, carton /Small Boxs / pallet as per customer request
Surface Coating:	Hot Dipped Galvanizing Hex Bolt Phosphate Hex Bolt Teflon Hex Bolt Ptfe Coated Hex Bolt Xylon Hex Bolt Zinc Phosphate Hex Bolt Manganese Phosphate Zinc Electro Plating (Hexavalent or Trivalent Chrome) ZAC (Zinc Alluminium Flake Coating) Cadmium Hex Bolt

Testing Facilities Of SS Bolts

Hardness Test

Tensile Testing Machine

IGC Test

Positive Material Identification Test

Metric Stainless Steel Fasteners Grades

Stainless Steel Fasteners Composition			Stainless Steel Fasteners Grade	Class	Minimum Tensile Strength in MPa
A	Austenitic fasteners	1	18-8	50	500 (soft)
		2	18-8	70	700 (cold-worked)
		4	316	80	800 (high strength)
F	Ferritic fasteners	1	430	45	450 (soft)
F	Ferritic fasteners	1	430	60	600 (cold-worked)
C	Martensitic fasteners	1	410	50	500 (soft)
		4	416,416Se	70	700 (hardened and tempered)
				110	1100 (hardened and tempered) (ASTM metric only)
		3	431	80	800 (hardened and tempered)
				120	1200 (hardened and tempered) (ASTM metric only)
P	Precipitation-Hardening (ASTM metric only)	1	630 (17/4)	90	900

Equivalent Grade Of Stainless Steel Nuts

STANDARD	WERKSTOFF NR.	UNS
SS 304	1.4301	S30400
SS 304L	1.4306 / 1.4307	S30403
SS 304H	1.4301	S30409
SS 310	1.4841	S31000
SS 310S	1.4845	S31008
SS 310H	–	S31009
SS 316	1.4401 / 1.4436	S31600
SS 316L	1.4404 / 1.4435	S31603
SS 316H	1.4401	S31609
SS 316Ti	1.4571	S31635
SS 317	1.4449	S31700
SS 317L	1.4438	S31703
SS 321	1.4541	S32100
SS 321H	1.4878	S32109
SS 347	1.4550	S34700
SS 347H	1.4961	S34709
SS 904L	1.4539	N08904

DIN/ISO Fasteners Standards

No.	Description
DIN 84	Slotted Cheese Head Machine Screws
DIN 85	Slotted Pan Head Machine Screws
DIN 94	Cotter Pin
DIN 125A	Flat Washer (without Chamfer)
DIN 125B	Flat Washer (with Chamfer)
DIN 127B	Split Lock Washer
DIN 137B	Spring Wave Washer
DIN 315	Wing Nut
DIN 439B	Machine Screws Hex Nut, Finished Hex Jam Nut
DIN 911	Long Arm Hex Key
DIN 912	Hex Socket Head Cap Screws
DIN 916	Hex Socket Set Screws
DIN 931	Hex Head Cap Screws Partially Threaded
DIN 933	Hex Head Cap Screws Fully Threaded
DIN 934	Finished Hex Nut
DIN 939	Double End Stud
DIN 960	Hex Head Cap Screws Partially Threaded
DIN 961	Hex Head Cap Screws Fully Threaded
DIN 963	Slotted Flat Head Machine Screws
DIN 964	Slotted Oval Head Machine Screws
DIN 965	Phillips Flat Head Machine Screws
DIN 966	Phillips Oval Head Machine Screws
DIN 975	Threaded Rod
DIN 980V	Hex Steel Prevailing Torque Lock Nut
DIN 985	Hex Nylon Insert Lock Nut
DIN 6334	Rod Coupling Nut
DIN 6797A	External Tooth Lock Washer
DIN 6797J	Internal Tooth Lock Washer
DIN 6912	Hex Low Socket Head Cap Screws
DIN 6921	Hex Flange Head Screws
DIN 6923	Hex Flange Nut
ISO 7379	Hex Socket Head Shoulder Screws
ISO 7380	Hex Button Socket Head Cap Screws
DIN 7985	Phillips Pan Head Machine Screws
DIN 7991	Hex Flat Socket Head Cap Screws

Stainless Steel Fasteners Types

Stainless Steel High Tensile Bolts	SS High Strength Bolts
SS Coach Bolts Manufacturer	Stainless Steel Hurricane Bolts
Stainless Steel Fasteners Online	A193 Stainless Steel Bolts and Nuts Supplier
Stainless Steel Cap Head Bolts	Stainless Steel Fasteners Distributors
ASME SA193 SS Toggle Bolts	A193 SS Automotive Bolts
A193 SS Allen Head Bolts Wholesaler	SS Button Head Bolts Stokist in India
A4 SS Gutter Bolts	Grade A2 Stainless Steel Stud Bolt Manufacturers in India
A193 SS Weld Nuts	ASME SA193 SS Rivet Nuts
18/8 Stainless Steel Flat Head Bolts	18/8/3 SS Deck Bolts
SA193 Stainless Steel Barrel Nuts	A193 Stainless Steel Wheel Nuts