At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to ASTM F432. Standard specification for roof and rock bolts and accessories used for ground support in mining and tunneling. Covers chemical, mechanical and dimensional requirements for steel bars made into bolts, threaded bars, and threaded slotted bars, plus accessories (nuts, plates, couplers). Grades designated by minimum yield strength (ksi).
Standard specification for roof and rock bolts and accessories used for ground support in mining and tunneling. Covers chemical, mechanical and dimensional requirements for steel bars made into bolts, threaded bars, and threaded slotted bars, plus accessories (nuts, plates, couplers). Grades designated by minimum yield strength (ksi).
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| Grade 40 | Steel bar | Yield 40 ksi class; sizes 3/4-1-1/2 in |
| Grade 55 | Steel bar | Yield 55 ksi class |
| Grade 60 | Steel bar | Yield 60 ksi class |
| Grade 75 | Steel bar | Yield 75 ksi class |
| Grade 100 | Alloy steel bar | Yield 100 ksi class |
Minimum mechanical requirements per ASTM F432.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| Grade 40 | 70 (483) | 40 (276) | 12 | Per grade |
| Grade 55 | 85 (586) | 55 (379) | 12 | Per grade |
| Grade 60 | 90 (621) | 60 (414) | 9 | Per grade |
| Grade 75 | 100 (690) | 75 (517) | 8 | Per grade |
| Grade 100 | 125 (862) | 100 (690) | 6 | Per grade |
| Grade | Key Composition, % |
|---|---|
| Carbon grades (40-75) | Carbon steel; P and S controlled |
| Grade 100 | Alloy steel, heat treated for higher strength |
Related to reinforcing/anchor bar practice; no direct ISO equivalent (specialized mine roof support).
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 F432 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 roof and rock bolts and accessories used for ground support in mining and tunneling. Covers chemical, mechanical and dimensional requirements for steel bars made into bolts, threaded bars, and threaded slotted bars, plus accessories (nuts, plates, couplers). Grades designated by minimum yield strength (ksi).
Ananka Fasteners supplies Grade 40, Grade 55, Grade 60, Grade 75, Grade 100 to ASTM F432. 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 F432 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 F432 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 F432 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per ASTM F432 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
