SS 904L Foundation BoltUNS N08904 · Project drawing / purchase specification · Manufacturer, trader & exporter, India
Alloy 904L · UNS N08904
An SS 904L foundation bolt is a heavy bolt set in concrete for machinery bases. Finished fastener specification not asserted; material/feedstock may be supplied to ASTM A479 (UNS N08904), where applicable; manufacturing route and finished fastener requirements are to the purchase specification or project drawing. Foundation bolts secure heavy machinery and structures. Supplied to drawing with nuts and washers.
See the SS 904L fasteners grade form page for standards and sizes.
- UNS N08904
- 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 904L Foundation Bolt?
- What it is
- A heavy bolt set in concrete for machinery bases
- Finished spec
- Not asserted
- Material / feedstock
- ASTM A479 (UNS N08904), where applicable
- Dimensions
- Project drawing / purchase specification
- Grade
- SS 904L · UNS N08904
- Best at
- Dilute sulphuric acid, phosphoric acid and chloride-bearing cooling water
SS 904L Foundation Bolt Specification
| Product | SS 904L Foundation Bolt |
|---|---|
| Finished fastener specification | Not asserted |
| Material / feedstock specification | ASTM A479 (UNS N08904), 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 a Foundation Bolt
Foundation bolts secure heavy machinery and structures. Supplied to drawing with nuts and washers.
- Heavy diameters
- Made to drawing
- With nuts and plates
More on choosing: Foundation bolt guide.
SS 904L Foundation Bolt: Why 904L for foundation bolts
Foundation bolts secure heavy machinery and structures. Supplied to drawing with nuts and washers. In SS 904L, 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 904L is picked for dilute sulphuric acid, phosphoric acid and chloride-bearing cooling water. |
|---|---|
| Typical service | Sulphuric acid plants — Coolers, piping and tanks for dilute sulphuric acid. |
| Bolting | as the project specifies |
SS 904L Foundation Bolt Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Nickel | As specified |
| Chromium | As specified |
| Molybdenum | As specified |
| Copper | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Nitrogen | 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 N08904.
SS 904L Foundation 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 N08904 — Annealed plate & sheet.
Full chemistry, properties and equivalents are on the SS 904L grade page.
Standards on this page
Other SS 904L fasteners
SS 904L Foundation Bolt — questions buyers ask
Foundation bolt or anchor bolt?
The terms overlap; foundation bolts usually refer to heavy bolts for machinery bases.
What nut is used with SS 904L foundation bolts?
Usually a nut in the same alloy — it may be machined from ASTM A479 bar, where applicable; finished requirements are to the purchase specification or project drawing.
Which standard covers SS 904L foundation bolts?
Finished fastener specification: Not asserted. Material / feedstock: ASTM A479 (UNS N08904), 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 904L foundation 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