SS Fasteners
The Benefits of Using SS Fasteners in Industrial Applications
Governing Industry Standards
Dimensional & Size Scope
M3 to M64 (Metric) & 1/8″ to 2-1/2″ (Imperial) | Lengths: 6mm to 500mm & Cut Threaded Rods up to 3000mm
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Technical Description & Overview
Stainless steel (SS) fasteners are integral components in a wide variety of applications, known for their exceptional strength, durability, and resistance to corrosion. Made primarily from an alloy of iron, chromium, and nickel, these fasteners include bolts, nuts, screws, washers, and more. The unique properties of stainless steel make these fasteners ideal for challenging environments, where traditional fasteners might fail due to rust and degradation. As a result, the demand for SS fasteners has surged across multiple industries, including construction, automotive, aerospace, and more.\n\nOne of the most significant advantages of stainless steel fasteners is their resistance to corrosion. The chromium content in stainless steel forms a protective layer that prevents oxidation, making these fasteners suitable for outdoor use and in applications exposed to moisture, chemicals, or extreme temperatures. Additionally, SS fasteners have high tensile strength, which allows them to withstand substantial loads without deforming. This is particularly crucial in construction and heavy machinery applications, where safety and reliability are paramount. Furthermore, the aesthetic appeal of stainless steel also plays a role in its selection, especially in architectural and design applications.
Engineering Specifications
| Technical Parameter | Standard Value / Specification |
|---|---|
| Material Grades | SS 304, SS 316, SS 202, SS 410, SS 430, SS 316L, SS 321, ASTM A193 B8/B8M |
| Types of Fasteners | Bolts, Nuts, Screws, Washers, Studs, Threaded Rods, Rivets, Anchor Fasteners |
| Standard Specifications | ASTM A193, ASTM A194, ASTM A320, DIN 933, DIN 931, ISO 4014, ISO 4017 |
| Temperature Resistance | Up to 870°C (Depending on Grade) |
| Corrosion Resistance | High (Rust & Oxidation Resistant in outdoor, humid, and chemical exposure) |
| Thread Types | Metric Coarse & Fine, UNC, UNF, BSW rolled threads |
| Surface Finish | Passivated, Cleaned, Polished, PTFE/Xylan coated |
Certified Chemical Spectrometry Limits
| Chemical Element | Maximum / Standard Limit |
|---|---|
| Carbon (C) | 0.08% max (304) / 0.08% max (316) |
| Chromium (Cr) | 18.0 - 20.0% (304) / 16.0 - 18.0% (316) |
| Nickel (Ni) | 8.0 - 10.5% (304) / 10.0 - 14.0% (316) |
| Molybdenum (Mo) | 2.0 - 3.0% (316) |
Mechanical & Tensile Parameters
| Mechanical Property | Guaranteed Requirement |
|---|---|
| Tensile Strength (UTS) | 700 MPa (Class 70) / 800 MPa (Class 80) |
| 0.2% Proof Stress | 450 MPa (Class 70) / 600 MPa (Class 80) |
| Elongation after fracture | ≥ 0.4d (Class 70) |
| Maximum Service Temperature | Up to 870°C (1600°F) |
Available Material Grades
Standard 18/8 austenitic fasteners with 700-800 MPa tensile strength for machinery and architecture.
Marine-grade molybdenum fasteners offering superior defense against salt spray and chemical corrosion.
High-pressure, elevated-temperature alloy stud bolts for ASME boiler and pressure vessel flanges.
Heat-treatable martensitic stainless fasteners providing high hardness and wear resistance.
Key Engineering Features & Advantages
Target Industrial & Infrastructure Applications
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