Stainless Steel 316L Fasteners

Stainless Steel 316L fasteners are hardware parts such as bolts, nuts, screws, washers, and studs (both threaded and unthreaded) manufactured from 316L grade stainless steel. The "L" stands for low carbon, which means the carbon content is kept below 0.03%. This reduces the risk of carbide precipitation during welding, which makes these fasteners a better fit for high-temperature or welded assemblies compared to standard 316.

The grade contains molybdenum (2–3%), which gives it notably better resistance to chlorides and other corrosive media. It also contains nickel and chromium.

316L fasteners handle corrosive environments well, they maintain their integrity in high-temperature conditions, and hold up in marine or saline environments where other grades would start to fail. They are used in chemical processing, marine engineering, pharmaceuticals, oil and gas, food processing, and construction.

Stainless Steel 316L Fasteners Price

Pricing for SS 316L fasteners depends on the type, size, and quantity ordered. 

• Small fasteners (M6–M12): ₹80–₹250 per kg
• Medium fasteners (M16–M24): ₹200–₹450 per kg
• Large or custom fasteners (M30 and above): ₹400–₹800+ per kg

These prices are only a guide. Final price depends on current raw material costs and order size.

SS 316L fasteners cost ₹150–₹600 per kg for standard items. Special fasteners (high‑strength, non‑standard sizes, or special finishes) cost more.

• Nickel and molybdenum prices, since both are main alloying elements in 316L.
• Order quantity: larger orders usually attract better rates
• Manufacturing process: cold-forged vs machined fasteners differ in cost
• Finish type: plain, passivated, or electropolished
• Certification requirements (PED, NACE, etc.) add to the cost
• Current freight and import duties if sourced internationally

Types Of Stainless Steel 316L Fasteners

There are 18 types of Stainless Steel 316L Fasteners listed below.

• Hex Bolts
• Hex Nuts
• Stud Bolts
• Eye Bolts
• Anchor Bolts
• Carriage Bolts
• Socket Head Cap Screws
• Machine Screws
• Set Screws
• Wing Nuts
• Flange Nuts
• Coupling Nuts
• Flat Washers
• Spring Washers
• Lock Washers
• U-Bolts
• J-Bolts
• T-Bolts

Stainless Steel 316L Fasteners Specifications

The specifications of Stainless Steel 316L Fasteners, including size, dimensions and forms, are listed in the table below. 

Chemical Composition Of Stainless Steel 316L Fasteners

The chemical composition of Stainless Steel 316L Fasteners, including proportions are listed in the table given below. 

Mechanical Properties Of Stainless Steel 316L Fasteners

The mechanical properties of Stainless Steel 316L Fasteners are listed in the table below along with elongation, tensile strength and yield strength. 

Physical Properties Of Stainless Steel 316L Fasteners

The physical properties of Stainless Steel 316L Fasteners, including thermal conductivity and density, are listed in the table below. 

Stainless Steel 316L Fasteners Size Chart

The available sizes of Stainless Steel 316L Fastener are listed in the table given below. 

Lengths are available from 10mm to 300mm in standard increments. Custom lengths can be sourced on request.

Key Features Of Stainless Steel 316L Fasteners

316L Stainless Steel fasteners have 10 main features listed below.

• Low carbon content (max 0.03%) reduces the risk of sensitisation during welding.
• Molybdenum increases resistance to pitting and crevice corrosion.
• Performs reliably in chloride-rich conditions, such as seawater and coastal environments.
• Suitable for both very low (cryogenic) temperatures and higher service temperatures up to 800°C.
• Remains non-magnetic in the annealed state.
• Offers good forming and machining properties for precise parts.
• Compliant with ASTM, DIN, BS, and ISO standards.
• Available with full mill test certificates and third-party inspection.
• Compatible with electropolishing, passivation, and various surface treatments.
• Used in food-grade and pharma-grade applications due to cleanliness requirements.

Applications of Stainless Steel 316L Fasteners

Stainless Steel 316L Fasteners are used in the below mentioned high-performing industries.

• Chemical processing plants and reactor systems
• Marine ships, offshore structures, and saltwater piping networks
• Equipment used in pharmaceutical and biotech production
• Food and beverage manufacturing facilities
• Pulp and paper production plants
• Desalination facilities
• Oil and gas refineries and pipeline systems
• Heat exchangers and pressure vessels
• Architectural cladding in coastal or industrial zones
• Water treatment and wastewater systems
• Textile machinery
• Surgical and medical device assemblies

How To Choose The Right Stainless Steel 316L Fasteners Supplier?

Follow the steps below to choose the right Stainless Steel 316L Fasteners Supplier.

Selecting The Right Supplier

Start with whether the supplier keeps SS 316L in stock or sources it on demand. A stocking supplier can fulfil orders faster and usually has better quality consistency since they deal with fewer batches. Ask for a sample if you are ordering a new grade or size. Check if they can supply the full size range you need, since some suppliers only keep common sizes in stock.

Technical Considerations

Confirm the material standard before you order. SS 316L fasteners should meet ASTM A193 (for bolts and studs), ASTM A194 (for nuts), or the relevant DIN/ISO standard for your use. If the fasteners are going into a pressure system, ask for material test certificates (MTCs) with actual heat numbers. Check the thread form too, as metric and imperial threads are not interchangeable.

Evaluating Supplier Credibility

Look for suppliers with ISO 9001 certification at a minimum. If you are in oil and gas or pharma, PED-compliant or NACE MR0175-compliant supply may be required. Ask how long they have been supplying 316L specifically, not just stainless in general. Check if they can provide third-party inspection reports or arrange TPI on request.

Procurement Strategy

If you buy these fasteners often, make a long‑term rate deal with a trusted supplier instead of buying on the spot. Spot buying SS 316L is riskier because nickel prices change a lot. It’s usually better to buy all your fasteners (bolts, nuts, washers) from one supplier. This makes paperwork and material traceability easier, especially when your customer needs traceability records.