SS 310 / 310S Eye BoltUNS S31008 · Project drawing / purchase specification · Manufacturer, trader & exporter, India
AISI 310S · UNS S31008
An SS 310 / 310S eye bolt is a bolt with a loop head for lifting or anchoring. Finished fastener specification not asserted; material/feedstock may be supplied to ASTM A276 / A479 (UNS S31008), where applicable; manufacturing route and finished fastener requirements are to the purchase specification or project drawing. Eye bolts provide lifting points on equipment. Load ratings depend on angle of pull.
- UNS S31008
- Project drawing / purchase specification
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 310 / 310S Eye Bolt?
- What it is
- A bolt with a loop head for lifting or anchoring
- Finished spec
- Not asserted
- Material / feedstock
- ASTM A276 / A479 (UNS S31008), where applicable
- Dimensions
- Project drawing / purchase specification
- Grade
- SS 310 / 310S · UNS S31008
- Best at
- Furnaces, burners and heat treatment at high temperature
SS 310 / 310S Eye Bolt Specification
| Product | SS 310 / 310S Eye Bolt |
|---|---|
| Finished fastener specification | Not asserted |
| Material / feedstock specification | ASTM A276 / A479 (UNS S31008), where applicable |
| Dimensional standard | Project drawing / purchase specification |
| Manufacturing route | Route dependent on product design and purchase specification |
| Project / purchase specification | Yes — finished fastener requirements are to the purchase specification or project drawing |
| Sizes | M10 – M64 · ½" – 4" (others on request) |
| Threads | UNC · UN-8 · metric coarse |
| Testing | PMI (as specified in the PO) · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 or 3.2 on request / as specified in the PO |
When to Choose an Eye Bolt
Eye bolts provide lifting points on equipment. Load ratings depend on angle of pull.
- Forged or machined to drawing
- Load rating per design and purchase specification
- Metric and inch
More on choosing: Eye bolt guide.
SS 310 / 310S Eye Bolt: Why 310S for eye bolts
Eye bolts provide lifting points on equipment. Load ratings depend on angle of pull. In SS 310 / 310S, 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 310 / 310S is picked for furnaces, burners and heat treatment at high temperature. |
|---|---|
| Typical service | Furnace parts — Muffles, retorts, radiant tubes and conveyor belts. |
| Bolting | A193 B8 or project-specified bolting |
SS 310 / 310S Eye Bolt Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Nickel | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
| Sulphur | As specified |
| Iron | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A240 for UNS S31008.
SS 310 / 310S Eye Bolt Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
| Hardness | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A240 for UNS S31008 — Annealed plate & sheet.
Full chemistry, properties and equivalents are on the SS 310 / 310S grade page.
Standards on this page
Other SS 310 / 310S fasteners
SS 310 / 310S Eye Bolt — questions buyers ask
Can eye bolts be loaded at an angle?
Only shouldered eye bolts, and with a reduced rating; follow the load chart.
What nut is used with SS 310 / 310S eye bolts?
Usually a nut in the same alloy — it may be machined from ASTM A276 / A479 bar, where applicable; finished requirements are to the purchase specification or project drawing.
Which standard covers SS 310 / 310S eye bolts?
Finished fastener specification: Not asserted. Material / feedstock: ASTM A276 / A479 (UNS S31008), where applicable. Dimensions: Project drawing / purchase specification. State the finished specification, material and dimensions on your purchase order or project drawing.
What decides the price of a SS 310 / 310S eye bolt?
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 or 3.2 certificates available on request / as specified in the PO; dimensional reports as required. PMI can be arranged depending on product and requirements, as specified in the PO.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026