316 Stainless Steel Fasteners Supplier
MT.BOLTS manufactures 316 stainless steel fasteners using high-quality austenitic stainless steel grades such as 316, 316L, and 316Ti. These fasteners offer exceptional corrosion resistance, especially in chloride or marine environments, along with excellent mechanical strength and heat resistance. They are ideal for use in petrochemical plants, food processing equipment, marine hardware, power generation systems, and heat exchangers.
Our 316 stainless steel fasteners are available in the following specifications:
- Diameter: M3 to M64 | #4 to 2.5″
- Length: 6mm to 500mm | 0.25″ to 20″
- Thread Pitch: Metric (Coarse/Fine) | UNC/UNF
- Standards: ASME B18.2.1, ASME B18.3, ASME B18.2.2, DIN/ISO/EN (e.g., DIN 933, DIN 934)
- Material Specifications: ASTM A182, ASTM A479, ASTM A276 (316 / 316L / 316Ti)
- Types: Bolts, Screws, Nuts, Washers, Studs
We regularly supply 316 series stainless steel fasteners and bolts in the following grades: 316, 316L, and 316Ti. Their chemical compositions and physical properties are summarized below for your procurement reference:
| Grade | UNS Number | Key Characteristics |
| 316 | S31600 | Offers superior corrosion resistance compared to 304, particularly effective against chlorides and marine environments. |
| 316L | S31603 | Low carbon variant of 316; provides enhanced weldability and minimizes the risk of sensitization (intergranular corrosion). |
| 316Ti | S31635 | Titanium-stabilized version of 316; maintains corrosion resistance after welding, especially against intergranular attack. |
316 Stainless Steel Fasteners Chemical Composition
| Element | Carbon (C) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Titanium (Ti) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) |
| 316 | 0.08 max | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | – | ≤ 2.0 | ≤ 1.0 | ≤ 0.045 | ≤ 0.030 |
| 316L | 0.03 max | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | – | ≤ 2.0 | ≤ 1.0 | ≤ 0.045 | ≤ 0.030 |
| 316Ti | 0.08 max | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | 5 × C min (~0.40–0.70) | ≤ 2.0 | ≤ 1.0 | ≤ 0.045 | ≤ 0.030 |
Notes:
316L is a low-carbon version of 316, designed to minimize carbide precipitation during welding, improving corrosion resistance in welded structures.
316Ti is stabilized with titanium, which binds carbon to prevent carbide precipitation, thus improving high-temperature corrosion resistance, especially after welding.
Mechanical properties can vary somewhat depending on heat treatment and manufacturing processes.
316 Stainless Steel Fasteners Mechanical Properties
| Property | Tensile Strength | Yield Strength (0.2% offset) | Elongation (%) | Hardness (HB) | Temperature Range |
| 316 | 75,000 psi (515 MPa) | 30,000 psi (205 MPa) | ≥ 40% | ~217 | -200 to 870°C |
| 316L | 70,000 psi (485 MPa) | 25,000 psi (170 MPa) | ≥ 40% | ~217 | -200 to 870°C |
| 316Ti | 75,000 psi (515 MPa) | 30,000 psi (205 MPa) | ≥ 40% | ~217 | -200 to 870°C |
316 Stainless Steel Fasteners Types
MT.BOLTS offers a comprehensive range of 316 Stainless Steel Fasteners for your selection to meet various application requirements:
316 Stainless Steel Hex Head Lag Screws
316 Stainless Steel Curved Washers
316 Stainless Steel Wave Washers
316 Stainless Steel Belleville Washers
Why Choose MT.BOLTS
- Material Diversity
- Standardized Production
- Ample Inventory
- Competitive Pricing
- Low-MOQ Customization
Reasons to Choose 316 Stainless Steel Fasteners
- Excellent Corrosion Resistance
- Especially resistant to chlorides, acids, and saltwater.
- Outperforms 304 stainless steel in marine and chemical environments.
- High Strength and Durability
- Suitable for demanding structural and industrial applications.
- Temperature Resistance
- Performs well in temperatures ranging from -150°C to 870°C.
- Long Service Life
- Reduced maintenance and replacement costs due to exceptional longevity.
- Aesthetic Finish
- Maintains a clean, polished appearance, ideal for architectural use.
- Non-magnetic in Annealed Condition
- Useful for medical, electronic, and precision applications.
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Application of 316 Stainless Steel Fasteners
316 stainless steel fasteners are widely used in harsh environments due to their excellent corrosion resistance, high temperature tolerance, and strength. Common applications include:
- Marine Industry: Used in ships, docks, and seawater pipelines for saltwater corrosion protection
- Chemical Industry: Suitable for equipment and pipelines exposed to acids, alkalis, and salts
- Oil & Gas: Applied in refineries and high-pressure, high-temperature systems
- Food & Pharmaceutical: Ideal for clean environments such as food processing and pharmaceutical production lines
- Construction: Used in bridges, high-rise buildings, and exterior structural components requiring weather resistance
- Power Generation: Applied in high-temperature zones of power plants and heat exchangers
FAQ About 316 Stainless Steel Fasteners and Bolts
316L has a lower carbon content than 316, which improves weldability and reduces the risk of intergranular corrosion.
Yes. 316 fasteners are highly resistant to saltwater corrosion, making them ideal for marine use.
No, 316 stainless steel is non-magnetic in its annealed state.
Common standards include ASTM A193, ASTM A194, DIN 933, DIN 934, ISO 4017, and ASME B18.2.1.
Yes. 316 fasteners maintain strength and corrosion resistance up to ~870°C (1,598°F), though for very high temperatures, stabilized grades like 316Ti may be preferred.
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