Stainless Steel 310 Fasteners

T he hardness of the ASTM A193 310 Stainless Steel Nuts is 217 HB in the Brinell hardness scale. The composition, mechanical properties and the physical properties of the Stainless Steel 310 Fasteners make them applicable for high temperature, high pressure services such as heat exchangers, condensers, pulp and paper industry, pharmaceuticals, petrochemicals and many others. Please contact us for more information on the different types of the bolts such as the SS UNS S31000 Stainless Steel U-bolts and others with their prices.

Stainless Steel Nuts

Stainless steel nuts come in all shapes and sizes and each design offers distinct advantages. However, many people are not completely aware of the variety and its benefits.

Hex Nuts- The most common type of stainless steel nuts are hex nuts, which are standardized with six sides. The unique design allows for the strong grip of a wrench at various angles. This affords excellent convenience, as hard-to-reach places where a wrench can’t turn 360 degrees, can be accessed with ease for repairs, installations, and so forth.

Wing Nuts- These are nuts designed with two flat wings on either side and allow for easy tightening or loosening using only fingers. Unfortunately, these are not designed with high strength in mind and are most often utilized where convenience offers more value than strength.

Cap Nuts- These are stainless steel SS 304 / 304L / B8 Nut with a dome rather than a flat top. Interestingly, they facilitate aerodynamics which would prove ideal on aircraft and vehicles but is commonly utilized for aesthetic purposes on handrails and steel furnishings.

Square Nuts- Square nuts are four-sided nuts that offer greater resistance to loosening. The reason is that the bottom has a larger area than standard hex nuts and can grip more effectively when fully tightened

Features of Stainless Steel Nuts

• Corrosion-resistant.
• High tensile strength.
• Very durable.
• Temperature resistant.
• Easy formability and fabrication.
• Low-maintenance (long-lasting).
• Attractive appearance.
• Environmentally friendly (recyclable).

Specification of Nut

Dimension	:	ASTM,DIN, BS,GB, IS and all International Standards
Length	:	3 mm to 200 mm
Nut Size	:	M02 to M33 | Custom Sizes
Heat Treatment	:	Annealing, Stress Relieving, Case Hardening, Quenching and Tempering.
Type	:	Hex Nut, Heavy Hex Nut, Lock Nut, Nylock Nut, Weld Nut, Dome Nut, Flange Nut, Square Nut, Eye Nut etc.

Standard Specification of Hex Nuts

Material	Standards	Grades
Nickel Alloy Hex Nuts	ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472	UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 (INCONEL 825), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3)
Stainless Steel Hex Nuts	ASTM / ASME A/SA 193 / 194	B 8 (304), B 8C (SS 347), B 8M (SS 316), B 8 T (SS 321), A 2, A 4
Alloy Steel Hex Nuts	ASTM / ASME A/SA 193 / 194 GR	B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M
Duplex Steel Hex Nuts	UNS NO. S 31803, S 32205	Range: M10 TO M100, LENGTH UPTO 5 METERS
Nonmetallic Materials:	Acrylic, Kel-F, Lexan, Polypropylene, Poly Vinyl Chloride, Teflon, Zytel 31, 101, 105
High-Temp Alloys	Discaloy, 19-9 DL, 16-25-6, A286, Titanium, Nimonic 80, Mulitmet, Haynes 25, Greek Ascalloy, Unitemp 252, Udimet 500, Rene 41, Inco 700, Inco 901, Hastelloy X, 235, Waspaloy, RA 330
Copper Base Alloys	Copper, Brasses: Yellow, Free-cut, Red, Naval, Bronze: Commercial, Phosphor, Silicon A & B, Aluminum, Silicon-Aluminum, Manganese, Ampco Alloys, Munitz Metal, Cupro-Nicles
Aluminum Alloys:	1100, 2011, 2014, 2017, 2024, 3003, 5052, 6053, 6061, 7075
Trademarks:	Carpenter, Armco, INCO, Cabot, DuPont.
Finish:	Black Oxide, Zinc Plating, Hot Dip Galvanized

Nylock Nut DIN 982 and ASTM A325 Nylock

Nyloc Nut is a commonly known name for the nylon inserted lock nut. The lock nuts are used in high vibration systems where the possibilities of loosening the nuts are very high. The Nylock Nut DIN 982 and other specifications cover the different types of lock nuts that have nylon inside the threads. The nylon expands to fit in and to increase the grip. The Nyloc Nut M10 and other sizes are tightened onto the bolt threads and they do not loosen under high vibrations. These nuts are used in different applications such as the Flange Nyloc Nut which is used in piping to fit flanges. As a leading SS Nylock Nut Manufacturer we produce these nuts in different finishes as well.

Spec Chart of Nylock Nuts

Thread Size	M30, M36, M10, M12, M8, M24, M14 1/4” to 1-1/2”
Length	6 MM To 500 MM
Standard	DIN982 DIN934 DIN936 DIN439 DIN555 A194 2H ASTM A563
Grade	4, 8, 10, AISI 2, AISI 5, AISI 8
Material	18-8 Stainless Steel, Stainless steel 201, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80
Thread Requirements	ASME B1.1, UNC & UNF, Class 2A
Finish	Per ASTM A380/A380M
Finishing	Zinc Plated (Yellow, White, Blue, Black), Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test
Stock Products	Stainless steel: All DIN, GB Standard and part ASNI standard stainless steel Nylon Lock Nuts, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912
Coatings	Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request

Stainless Steel heavy hex nuts

ASTM A194 Grade 2H Heavy Hex Nuts are quenched and tempered in the production. They are used in industrial applications to withstand high stress and corrosion.The material of the nuts could be carbon steel, alloy steel or other stainless steel types. They come under the standard ANSI B18.2.2. There are different types such as the 2h heavy hex nut which is used for heavy duty applications.

Specification List of Heavy Hex Nuts

Dimensions	3/8″ – 2-3/4″
Threads Configuration	ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
Certification	Dual Certified As per ASTM & ASME Codes
Additional Certifications	PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Mandatory Requirements	Free from Mercury & Radioactive Contamination
Additional Requirements	NACE MR0103 / MR0175 / ISO 15156 Compliance

Heavy Hex Nuts Properties

Forming	Hot & Cold Forged
Metric Size	M10 to M100
Imperial Size	3/8 to 8"
Threads	UNC, UNF, ISO, BSW & ACME.
Standards	ASME,BS,DIN,ISO,UNI,DIN-EN

Stainless Steel Flange Nuts

Stainless Steel Flange Nuts manufacturer in India produce nuts of different types. The flange nuts are special in shape and function that it has a flange attached. The nuts have one end of it flared outward to form a flange. The flange often has serrated surface towards the bolt. The Stainless Steel Serrated Flange Nuts act as washers and at the same time to tighten the nuts together with the bolt, bolt hole and the holding surface. These flange nuts are common for applications that require High-Strength 12-Point Flange Nuts which has high tensile and yield strengths. They can withstand high torque forces and stresses. The applications include exhausts and manifolds. The Exhaust Manifold Flange Nuts can perform under high temperatures and high pressures.

Standard Specification of Flange Nuts

Flange Nuts Size	M4 to M16
Length of Serrated Flange Nuts	6mm-500mm
SS Flange Nuts Thread Direction	Right Hand
Dia./Thread Size	5/8"-11
Width Across Flats	1-1/16"
Standard	DIN934 DIN936 DIN439 DIN555 A194 2H ASTM A563 JIS B1190, DIN 6923
Grade	4, 8, 10, AISI 2, AISI 5, AISI 8
Application	Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry
Material	18-8 Stainless Steel, Stainless steel 201, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80
Thread Requirements	ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge)
Manufacturing Process	Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
Coatings	Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request

SS 304 Hex Head Bolt

Stainless Steel Hex Bolts manufacturer in India produce different types of bolts, nuts and other fasteners in different materials, dimensions and standards. There are different materials used such as the 304, 316 austenitic stainless steel grades and others. The A2 70 Hex Head Bolt and other specifications specify for which services these are suitable.

Hex Bolts Specification

Product name	Hex Bolts
Standard	DIN931, ISO 4017, DIN, GB5783, ANSI, ASTM, EN, JIS, AS
ISO – International Organization for Standardization	ISO 4032, ISO 4033, ISO 4017, ISO7380 JIS standards
DIN Standard	B.S. DIN931 DIN933 DIN912 DIN934 DIN6923 DIN603
Hex Bolt Surface treatment	Passivation /plain
Size of Stainless Steel Hex Bolt	M2 – M100
Diameter of SS Hex Bolt	M3-M60
Length of Heavy Hex Bolt	6mm-500mm
Hex Bolt Head	Square, Hex, Hex flange, Round, T-head , Flat & Triangular etc
Hex Bolt Neck type	Square, Hex, Oval, Triangular & Knurled etc
Hex Bolt Drive type	Slotted, Phil, Torx , Hex socket, & square slot etc
Hex Bolt Dimensions	ASME B18.6.3 *Exception: screws 6 inches and shorter are fully threaded.

Stainless Steel Carriage Bolts

Stainless Steel carriage bolts manufacturers produce different types of bolts and the respective nuts. Bolts and nuts are fasteners that are used in the fitting of pipes, fittings, flanges and other components together with nuts. There are different types of bolts such as the 316 Stainless Steel carriage bolts. The materials can vary in the production of these bolts.The carriage bolt is special that it is used to fasten metal with metal or metal with wood. The head of the bolt is round. There are different types of the bolts such as the Stainless Steel knurled-neck carriage bolts, timber bolts and plough bolts. These different types are useful in different applications where metal and wood are used without the possibility or need for welding

Standard Specification of Carriage Bolts

Standard	ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS
DIN Standard	B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923
Stainless Steel Carriage Bolts Size	M2 – M100
Stainless Steel Carriage Bolts Diameter	M3-M60
Stainless Steel Carriage Bolts Length	6mm To 500mm
Head	Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc
Neck type	Hex, Square, Triangular, Oval & Knurled etc
Dimensions	ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
Stainless Steel Carriage Bolts Material	18-8 Stainless Steel, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80

Allen CSK Bolts

Stainless Steel Allen Countersunk Screw is a type of screw that is sunk into the surface of the base material at complete installation.The 304 material is an austenitic stainless steel that is strong and corrosion resistant. It is the most used steel in the world. The countersunk screw head is designed in a way to be sunk into the panel when driven into it. There are SS 316 Allen Key Countersunk Screw types which are made up of a more corrosion resistant material. The csk screws can also be self tapping screws

Allen Csk Screw Specification Standards

Allen CSK Screws Standard	ISO 7380, DIN7991, DIN 912 ASTM, ANSI, JIS, EN, AS, GB
DIN 912 carbon steel 12.9 Hexagon allen head cap screw Sizes	M1.6, M2, M2.5, M3, M3.5, M4, M5, M6, M7, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30
Screw Head	Pan head, flat head, oval head, hex head, phillips head
Din7991 A2 Ss Countersunk Screw Csk Allen Socket Screws Dimensions	ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
Thread Requirements	ASME B1.1, UNC & UNF, Class 2A

Stainless Steel Anchor Bolts

The Stainless Steel Wedge Anchors are produced mostly in the 316 grade of stainless steel. This is because the anchor bolts are used in corrosive environmental applications.The 316 Stainless Steel anchor bolts have high corrosion resistance, especially against chloride ion corrosion stress. The molybdenum content in the 316 Stainless Steel L Anchor Bolts make them suitable for the corrosive applications. There are different types and shapes such as L and J which are meant for different applications

Plain Washers

316 Stainless Steel Plain Washers are used in applications where bolts and nuts are used. The washers absorb pressure and stress and save the components.There are different standards such as ASTM, DIN and BS standards to cover these washers. There are different sizes such as the M10 Stainless Steel Flat Washers and the sizes range from M02 to M33 and the metric sizes range from 3mm to 200mm. There are different types of these such as the lock washers, flat washers, split washers, sealing washers, machine washers, slot washers, star washers springs and so on. There are different functionalities such as High Temperature Flat Washer which can be applied in high temperature services.

Plain Washers material specification chart

Specifications of Plain Washers	ASME SA193 ASTM A193
DIN125 Flat Washer Standard	ASTM, DIN, BS and all International Standards
Length of Stainless Steel plain Washers	M02 to M33
Size of Iron Flat Washer	3 mm to 200 mm