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    Seamac Piping Solutions Inc. is a reliable is a Manufacturer, Supplier, & Exporter of Pipe Fittings, Forged Pipe Fittings, Forged Fittings, Flanges, Outlets, Long Radius Bends from India.

    Corporate Address : 87, Durgadevi Street, Kumbharwada, Mumbai, Maharashtra(India) 400004

    Warehouse Address : Jai Matadi Industrial Estate , Gala No.3 , Goddev Fhatak Road Bhayander ( East) , Thane , Maharastra ( India).

    Mobile : +91-98332 92291
    Phone Nos. : +91-22-66159077 / 66159078
    E-mail : sales@seamacpiping.com

Stainless Steel A4 Heavy Hex Nut, Stainless Steel A4-70 Fasteners, Stainless Steel A4-80 Fasteners, SS A4 Socket Head Cap Screw, SS A4 Hex Head Bolt, Stainless Steel A4 Lock Hex Nut, SS A4 Spring Washer Suppliers in India

Stainless Steel A4 Machine Bolts Manufacturers, Stainless Steel A4 Plain Washer in Mumbai, Stainless Steel A4 Industrial Fasteners Exporter in India, SS A4 Fully Threaded Bolts, Stainless Steel A4 Half Threaded Stud Bolts, Stainless Steel A4 Fasteners Price List in India.

Stainless Steel A4 Fasteners

A4 grade of Stainless Steel is the same as A2 grade. Stainless Steel A4 contains 16% chromium, 10% nickel and 2% molybdenum. Additional Molybdenum increases the corrosion resistance in Stainless Steel which endure attack from many industrial chemicals and solvents. Stainless Steel A4 is austenitic, nonmagnetic material which is suitable for all the situations as A2. But Stainless Steel A4 is also ideal for marine solutions. This Stainless Steel A4 is perfect for Fastener manufacturing, and it is easier to fabricate, weld, and finish. Use of Stainless Steel A4 grade is the most convenient and absolute choice. This material is also suitable in applications in surgical implants, photographic chemicals, and the marine environment.

We, Seamac Piping Solutions Inc., are leading manufacturer and supplier of Fasteners. We are producing Fasteners in different types, materials, specifications, and dimensions. By considering the needs of all industries, we are manufacturing a wide variety of Fasteners. Stainless Steel A4 Fasteners are the most preferred type of Fastener. We have a full inventory of Fasteners which is suitable for numerous types of industrial applications. By following all national as well as international standards, we manufacture the highest quality Stainless Steel A4 Fasteners. Along with standards, we also implement advanced technology and machinery to produce the most precise Stainless Steel A4 Fasteners in bulk amount.

Seamac Piping Solutions Inc. carries a wide range of stainless steel A4 fasteners in a variety of size, dimensions standards and tolerance to meet your project’s needs—including fasteners in dimension as per ASME B1.1, ASME B18.2.1, ASME B18.2.2, ASME B18.2.8, ASME B18.6.3, ASME B18.21.1, ASME B1.13M Fasteners / DIN , ANSI, JIS, ASTM standards specifications / weight chart & thickness of A4 stainless steel fasteners.

Seamac Piping Solutions Inc. is focusing on maintaining the quality of Fasteners and deliver them within the decided time. We have a team of experts, experienced, and skilled professionals who are working hard to provide expected quality to our clients. By using high-quality material for manufacturing and strict quality testing make us able to produce the most excellent quality Stainless Steel A4 Fasteners. Our quality testing team tests Fasteners at every stage of production to avoid defects and errors.

Stainless Steel A4 Fasteners Specifications

Specification : ASTM A193 / ASME SA193, ASTM A194 / ASME SA194, ASTM F593, F594, F1554 / ASME SF593, F594, F1554

Dimension : DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards

Size Range : M3 - M56 | 3/6" to 2" | Custom Sizes

Length : 3 mm to 200 mm

Stainless Steel A4 Fasteners Equivalent Grades

316 1.4401 / 1.4436 S31600 SUS 316 316S31 / 316S33 - Z7CND17‐11‐02 X5CrNiMo17-12-2 / X3CrNiMo17-13-3
316L 1.4404 / 1.4435 S31603 SUS 316L 316S11 / 316S13 03Ch17N14M3 / 03Ch17N14M2 Z3CND17‐11‐02 / Z3CND18‐14‐03 X2CrNiMo17-12-2 / X2CrNiMo18-14-3
316H 1.4401 S31609 SUS 316H - - - -

By performing various destructive and non-destructive tests, we check the quality as well as durability Stainless Steel A4 Fasteners. At reasonable rates, we are offering excellent Fasteners with superior finishing. We are also taking care of packing, shipping, labelling and on-time delivery of Fasteners. We are fulfilling the needs of our clients by providing a variety of Fasteners with all necessary abilities.

Stainless Steel A4 Fasteners Types

Stainless Steel A4 Nuts

Stainless Steel A4-70 Nuts

Stainless Steel A4-80 Nuts

A4 Stainless Steel Wing Nut

Stainless Steel A4 Nylon Lock Nut

SS A4 Coupling Nuts

Stainless Steel A4 Dome Nut

SS A4 Eye Nuts, Lifting Eye Nuts

Stainless Steel A4 Machine Nuts

Stainless Steel A4 Cap Nuts

Stainless Steel A4 Square Nuts

SS A4 T-Nuts, Tee Nuts

SS A4 Knurled Nuts, Thumb Nuts

Stainless Steel A4 Weld Nuts

SS A4 Self-Clinching Nuts

Stainless Steel A4 Bolts

Stainless Steel A4-70 Bolts

Stainless Steel A4-80 Bolts

A4 Stainless Steel Lag Bolts

Stainless Steel A4 U Bolts

SS A4 Carriage Bolts

Stainless Steel A4 Square Bolt

Steel A4 Foundation Bolts

Stainless Steel A4 Structural Bolts

Stainless Steel A4 J Bolts

Stainless Steel A4 Anchor Bolts

SS A4 Elevator Bolts

SS A4 Socket Head Bolts

Stainless Steel A4 Shoulder Bolts

SS A4 Countersunk Bolts

Stainless Steel A4 Stud Bolts

Stainless Steel A4-70 Stud Bolt

Stainless Steel A4-80 Stud Bolt

SS A4 Full Threaded Stud Bolts

Stainless Steel A4 Double Ended Studs

SS A4 Tap End Stud Bolt

Stainless Steel A4 Single End Stud Bolts

SS A4 Partial Thread Stud Bolt

Stainless Steel A4 Continuous Threaded Stud Bolt

Stainless Steel A4 Heavy Stud Bolts

SS A4 Reduced Shank Stud Bolt

Stainless Steel A4 Studbolts

Stainless Steel A4 Threaded Studbolt

SS A4 Washers

Stainless Steel A4-70 Washers

Stainless Steel A4-80 Washers

SS A4 Plain Washers

Stainless Steel A4 Split Washer

SS A4 Spring Lock Washers

Stainless Steel A4 Flat Washers

SS A4 Belleville Washers

Stainless Steel A4 Tab Washers

SS A4 Ogee Washers

Stainless Steel A4 Dock Washers

SS A4 Star Washer

SS A4 Beveled Washers

Stainless Steel A4 Hex Washer

SS A4 Tooth Lock Washers

SS A4 Screw

Stainless Steel A4-70 Screw

Stainless Steel A4-80 Screw<

SS A4 Socket Head Screws

SS A4 Round Head Screws

A4 Stainless Steel Tapping Screws

Stainless Steel A4 Flat Washers

SS A4 Thumb and Wing Screws

Stainless Steel A4 Self Drilling Screw

SS A4 Socket Set Screw

Stainless Steel A4 Eye Screw

SS A4 Machine Screws

SS A4 Button Head Screws

Stainless Steel A4 Drywall Screws

SS A4 Slotted Head Set Screws

SS A4 Hex Nuts

Stainless Steel A4-70 Hex Nuts

Stainless Steel A4-80 Hex Nut<

SS A4 Lock Hex Nut

SS A4 Finished Heavy Hex Nut

A4 Stainless Steel Hexagon Nuts

Stainless Steel A4 Hex Head Nut

SS A4 Hex Cap Nuts

Stainless Steel A4 Hexagonal Nuts

SS A4 Hex Slotted Nuts

Stainless Steel A4 Hex Jam Nut

SS A4 High Hex Nuts

SS A4 Hex Machine Nuts

Stainless Steel A4 Hex Panel Nuts

SS A4 Hex Coupling Nuts

Stainless Steel A4 Hex Bolts

Stainless Steel A4-70 Hex Bolt

Stainless Steel A4-80 Hex Bolt

SS A4 Heavy Hex Bolts

SS A4 Finished Hex Bolts

A4 Stainless Steel Hexagon Bolt

Stainless Steel A4 Hex Tap Bolts

SS A4 Hexagonal Head Bolt

Stainless Steel A4 Hexagon Screw Head Bolt

SS A4 Hex Machine Bolts

Stainless Steel A4 Hex Flange Bolt

SS A4 Threaded Hex Bolts

SS A4 Hex Socket Bolts

Stainless Steel A4 Metric Hex Bolt

SS A4 High Tensile Hex Bolt

SS A4 Threaded Rod

SS A4 Threaded Rod

SS A4 All Threaded Rod

SS A4 Tie Bar

Stainless Steel A4 Studs

Stainless Steel A4 Double End Rods

SS A4 Trapezoidal Threaded Rod

Stainless Steel A4 Tie Rods

SS A4 Threaded Studs

Stainless Steel A4 Coil Rods

Stainless Steel A4 Industrial Studs

SS A4 Self-Clinching Studs

Stainless Steel A4 Heavy Studs

Stainless Steel A4 Fully Threaded Studs

Stainless Steel A4-70 / A4-80 Threaded Studs

Stainless Steel A4 Fasteners Dimensions :

Full Range of Stainless Steel A4 Fastener Products both Imperial & Metric. Dimensions range from M3 to M72

Hexagon Bolts / Set Screws
Stud Bolts
Hexagon Nuts
Socket Capscrews
DIN 931
DIN 934
DIN 912
DIN 933
DIN 976
BS 1768
DIN 6912
BS 1768
BS 1769
DIN 7984
UNI 5731
BS 1083
ANSI B18.3
UNI 5739
BS 3692
ISO 4762
ISO 4014
ISO 4032
UNI 5931
ISO 4017
ISO 4033
BS 2470
BS 1769
ANSI B18.2.2
BS 4168
BS 3692
ANSI B18.2.1
Socket & Slotted Set Screws
Socket & Slotted Countersunk Screws
DIN 913
DIN 963
DIN 938
DIN 125
DIN 914
DIN 7991
DIN 939
DIN 9021
DIN 915
BS 4168
DIN 2510
BS 4320
DIN 916
BS 1981
BS 4439
BS 3410
DIN 551
BS 483
BS 2693
DIN 553
BS 2470
Spring Washers
DIN 438
DIN 127
BS 4168
BS 4464
BS 1802

Stainless Steel A4 Fasteners Chemical Composition

Grade C Si Mn P S Cr Mo Ni Cu N
A4 Min - - - - - 16.0 2.0 10.5 - -
ISO Max 0.08 1.00 2.00 0.045 0.03 18.5 3.0 14.0 1.0 -
A4-70 Min - - - - - 16.0 2.0 11.5 - 0.12
ISO² Max 0.03 1.00 2.00 0.045 0.03 18.5 3.0 14.0 1.0 0.22
316 Min - - - 0 - 16.0 2.00 10.0 -
Max 0.08 0.75 2.0 0.045 0.03 18.0 3.00 14.0 0.10
316L Min - - - - - 16.0 2.00 10.0 -
Max 0.03 0.75 2.0 0.045 0.03 18.0 3.00 14.0 0.10
316H Min 0.04 0 0.04 - - 16.0 2.00 10.0 -
Max 0.10 0.75 0.10 0.045 0.03 18.0 3.00 14.0 -

Stainless Steel A4 Fasteners Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength
0.2% Proof
(MPa) min
(% in 50mm) min
Rockwell B (HR B) max
Brinell (HB) max
A4 700 450 40 Not required Not required
316 515 205 40 95 217
316L 485 170 40 95 217
316H 515 205 40 95 217
Application Industries

Stainless Steel A4 Fasteners Application Industries

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing

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