At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to ASTM F844. Standard specification for washers, steel, plain (flat), unhardened, for general use. Covers dimensional and general requirements (material, finish, flatness, burr) for unhardened flat round washers used under bolt/nut/screw heads for general (non-structural) assembly. The standard sets NO tensile/yield/hardness performance requirements – washers are unhardened and dimension-governed.
Standard specification for washers, steel, plain (flat), unhardened, for general use. Covers dimensional and general requirements (material, finish, flatness, burr) for unhardened flat round washers used under bolt/nut/screw heads for general (non-structural) assembly. The standard sets NO tensile/yield/hardness performance requirements – washers are unhardened and dimension-governed.
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| Type A / plain flat | Low-carbon steel | Unhardened flat washer, general use; sizes by nominal bolt diameter |
Minimum mechanical requirements per ASTM F844.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| Unhardened flat washer | n/a (no strength requirement) | n/a | n/a | Unhardened (no hardness requirement) |
| Grade | Key Composition, % |
|---|---|
| Low-carbon steel | Low-carbon steel, unhardened; finish plain or zinc-coated/other per order |
General-use unhardened counterpart to ASTM F436 (hardened structural washers). Dimensions overlap SAE and USS flat washer patterns.
For the official ASTM International standards catalogue, see the ASTM International standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We supply ASTM F844 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
Standard specification for washers, steel, plain (flat), unhardened, for general use. Covers dimensional and general requirements (material, finish, flatness, burr) for unhardened flat round washers used under bolt/nut/screw heads for general (non-structural) assembly. The standard sets NO tensile/yield/hardness performance requirements – washers are unhardened and dimension-governed.
Ananka Fasteners supplies Type A / plain flat to ASTM F844. See the Grades / Classes Covered table above for full details of each grade.
Minimum tensile strength, yield strength, elongation and hardness requirements vary by grade — see the Mechanical Properties table above for the complete breakdown.
We supply ASTM F844 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
Yes. For a quotation, provide the required fastener type, grade, nominal size, dimensional standard, quantity and any inspection or certificate requirements.
Need a fastener released to ASTM F844 for an industrial project? Send the required fastener type, grade, size, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: ASTM F844 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per ASTM F844 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
