SS 316 / 316L Machine ScrewASTM A193 · ASME B18.6.3 · Manufacturer, stockist & exporter, India
AISI 316L · UNS S31603
An SS 316 / 316L machine screw is a small-diameter screw for equipment assembly, made from SS 316 / 316L to ASTM A193 B8M · A194 8M. Machine screws assemble instruments, panels and equipment. Pan, countersunk and cheese heads.
- ASTM A193
- ASME B18.6.3
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 316 / 316L Machine Screw?
- What it is
- A small-diameter screw for equipment assembly
- Material
- ASTM A193 B8M · A194 8M
- Dimensions
- ASME B18.6.3 · DIN 84 / 963
- Grade
- SS 316 / 316L · UNS S31603
- Best at
- Chloride-bearing process fluids, marine air and pharmaceutical service
SS 316 / 316L Machine Screw Specification
| Product | SS 316 / 316L Machine Screw |
|---|---|
| Material standard | ASTM A193 B8M · A194 8M |
| Dimensional standard | ASME B18.6.3 · DIN 84 / 963 |
| Sizes | M10 – M64 · ½" – 4" (others on request) |
| Threads | UNC · UN-8 · metric coarse |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Machine Screw
Machine screws assemble instruments, panels and equipment. Pan, countersunk and cheese heads.
- Pan, flat and cheese heads
- Slotted or Phillips
- M2 – M10 typical
More on choosing: Machine screw guide.
SS 316 / 316L Machine Screw: Why 316L for machine screws
Machine screws assemble instruments, panels and equipment. Pan, countersunk and cheese heads. In SS 316 / 316L, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Stainless fasteners resist atmospheric and process corrosion. SS 316 / 316L is picked for chloride-bearing process fluids, marine air and pharmaceutical service. |
|---|---|
| Typical service | Chemical & process — Piping and vessels handling mild acids and chlorides. |
| Bolting | ASTM A193 B8M studs with A194 8M nuts |
SS 316 / 316L Machine Screw Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 16.0 – 18.0 |
| Nickel | 10.0 – 14.0 |
| Molybdenum | 2.00 – 3.00 |
| Carbon | 0.030 max |
| Manganese | 2.00 max |
| Silicon | 0.75 max |
| Nitrogen | 0.10 max |
| Phosphorus | 0.045 max |
SS 316 / 316L Machine Screw Mechanical Properties
| Annealed plate & sheet (316L) | Value |
|---|---|
| Tensile strength | 485 MPa · 70 ksi |
| Yield strength 0.2% | 170 MPa · 25 ksi |
| Elongation | 40% |
| Hardness | 217 HB max |
Full chemistry, properties and equivalents are on the SS 316 / 316L grade page.
Other SS 316 / 316L fasteners
SS 316 / 316L Machine Screws for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSS 316 / 316L Machine Screw — questions buyers ask
What sizes are machine screws?
Usually small diameters, M2 to M10 or #2 to 3/8".
What nut is used with SS 316 / 316L machine screws?
ASTM A194 8M heavy hex nuts.
Which standard covers SS 316 / 316L machine screws?
The material is ASTM A193 B8M · A194 8M; dimensions follow ASME B18.6.3 · DIN 84 / 963. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a SS 316 / 316L machine screw?
The alloy price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026