Womic Stainless Steel Co., Ltd
Bolts & Studs: ASTM A193 / A320 / DIN 933 / ISO 4014 / JIS B1180
Nuts: ASTM A194 / DIN 934 / ISO 4032 / JIS B1181
Washers: DIN 125 / DIN 127 / DIN 9021 / ASTM F436
Gaskets: ASME B16.20 / ASME B16.21 / EN 1514 / API 601
Material Grades of Stainless Steel Bolts, Nuts & Gaskets:
Austenitic Stainless Steel: 304 / 304L, 316 / 316L, 321, 347
Duplex & Super Duplex Stainless Steel: 2205 (UNS S31803), 2507 (UNS S32750)
Nickel Alloys: Inconel 600 / 625, Monel 400 / K500, Hastelloy C22 / C276
Special Alloys: 904L, Alloy 20, Titanium Grade 2 / 5
Carbon & Alloy Steel (optional): ASTM A193 B7 / B16 / L7, ASTM A194 2H
Fastener Types of Stainless Steel Bolts, Nuts & Gaskets:
Bolts: Hex bolts, Stud bolts, Carriage bolts, U-bolts, Anchor bolts
Nuts: Hex nuts, Heavy hex nuts, Lock nuts, Cap nuts
Washers: Flat washers, Spring washers, Sealing washers
Gaskets: Spiral wound gaskets, Ring type joint (RTJ), Graphite, PTFE, Rubber, and Metal gaskets
All products can be supplied with EN 10204 3.1 / 3.2 inspection certificates, ABS / DNV approvals, and full traceability for project documentation.
|
Product Type |
Size Range |
Thread Types |
Standards / Pressure Rating |
|
Bolts / Studs |
M6–M100 / ¼″–4″ |
Metric / UNC / UNF / BSW |
ASTM, DIN, ISO |
|
Nuts |
M6–M100 / ¼″–4″ |
Metric / UNC / UNF / BSW |
ASTM, DIN, ISO |
|
Washers |
M6–M100 |
Flat, Spring, Lock |
DIN, ISO |
|
Gaskets |
½″–60″ (DN15–DN1500) |
Spiral Wound, RTJ, Flat, Graphite |
ASME B16.20 / B16.21 |
|
Pressure Class |
CL150–CL2500 |
- |
API / ASME / EN / DIN |
Surface Finish Options of Stainless Steel Bolts, Nuts & Gaskets
Polished, Passivated, Zinc Plated, Hot-Dip Galvanized, PTFE Coated, Black Oxide.
Thread Options:Fully Threaded / Partial Thread / Rolled / Cut threads.
Womic Stainless Steel Bolts, Nuts & Gaskets are widely used in demanding environments where mechanical strength, temperature stability, and corrosion resistance are essential.
Typical Applications of Stainless Steel Bolts, Nuts & Gaskets:
Oil & Gas Industry–pipeline flanges, heat exchangers, pressure vessels
Petrochemical & Chemical Plants–acid, alkali, and solvent-resistant fastening
Marine & Offshore Structures–seawater corrosion resistance and DNV-approved systems
Power Generation–turbine and steam piping systems
Food & Pharmaceutical Industry–hygienic-grade fasteners for sanitary equipment
Construction & Infrastructure–bridges, structural steel, and heavy-duty assemblies
These components play a critical role in flange connections, sealing systems, and pressure joints, ensuring long-term reliability and leak-proof performance.
Comprehensive Product Range: Complete line of bolts, nuts, washers, and gaskets in stainless steel, duplex, and nickel alloys.
Certified Quality: Manufactured under ISO 9001, with ABS, DNV, and PED approvals for marine and industrial use.
Strict Quality Control: 100% inspection, including PMI testing, dimensional accuracy check, hardness testing, and NDT.
International Standards Compliance: Meets ASTM, ASME, DIN, ISO, JIS, and EN specifications.
Corrosion & High-Temperature Resistance: Perfect for offshore, chemical, and high-pressure applications.
Project Documentation: Full MTC (EN 10204 3.1 / 3.2), welding and NDE reports, and third-party inspection if required.
Global Supply Capability: Extensive export experience with timely delivery to Asia, Europe, Middle East, and Americas.
Competitive Pricing & Fast Lead Time: Direct manufacturing ensures both cost efficiency and on-time shipment.
