At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to SAE J429. SAE J429 specifies mechanical and material requirements for inch-series externally threaded fasteners (bolts, screws, studs) used chiefly in automotive and general industrial applications, in sizes 1/4 in. to 1-1/2 in. Grades run from 1 (low strength) through 8 (high strength alloy), with strength typically stepping down in the larger diameters of a grade.
SAE J429 specifies mechanical and material requirements for inch-series externally threaded fasteners (bolts, screws, studs) used chiefly in automotive and general industrial applications, in sizes 1/4 in. to 1-1/2 in. Grades run from 1 (low strength) through 8 (high strength alloy), with strength typically stepping down in the larger diameters of a grade.
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| Grade 1 | – | Low or medium carbon steel |
| Grade 2 | – | Low or medium carbon steel |
| Grade 5 | – | Medium carbon steel, quenched & tempered |
| Grade 8 | – | Medium carbon alloy steel, quenched & tempered |
Minimum mechanical requirements per SAE J429.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| Grade 1, 1/4-1 1/2 in. | 60 (415) min | 36 (250) min | 18 | B70-B100 |
| Grade 2, 1/4-3/4 in. | 74 (510) min | 57 (393) min | 18 | B80-B100 |
| Grade 5, 1/4-1 in. | 120 (827) min | 92 (634) min | 14 | C25-C34 |
| Grade 5, over 1-1 1/2 in. | 105 (724) min | 81 (558) min | 14 | C19-C30 |
| Grade 8, 1/4-1 1/2 in. | 150 (1035) min | 130 (896) min | 12 | C33-C39 |
| Grade | Key Composition, % |
|---|---|
| Grade 1 / 2 | Low or medium carbon steel; P 0.048 max, S 0.058 max |
| Grade 5 | Medium carbon steel, C 0.28-0.55, quenched & tempered |
| Grade 8 | Medium carbon alloy steel, C 0.28-0.55 with alloying, quenched & tempered |
Companion nut standard is SAE J995; washers per SAE/ASME. Grade 5 ~ ASTM A449 and ISO class 8.8; Grade 8 ~ ASTM A354 BD and ISO class 10.9. Also overlaps ASTM A307 (Grade 1/2).
For the official SAE International standards catalogue, see the SAE International standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We supply SAE J429 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.
SAE J429 specifies mechanical and material requirements for inch-series externally threaded fasteners (bolts, screws, studs) used chiefly in automotive and general industrial applications, in sizes 1/4 in. to 1-1/2 in. Grades run from 1 (low strength) through 8 (high strength alloy), with strength typically stepping down in the larger diameters of a grade.
Ananka Fasteners supplies Grade 1, Grade 2, Grade 5, Grade 8 to SAE J429. 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 SAE J429 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 SAE J429 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: SAE J429 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per SAE J429 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
