SAE J429 Grade 5 Hex Bolts Hex Cap Screws
Standard: ASME B18.2.1 various types of head are available
Thread Size: 1/4”-1.1/2” with various lengths
Grade: SAE J429 Grade 5
Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
SAE J429 covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in sizes to 1-1/2” inclusive.
Below is a basic summary of the most common grades. SAE J429 covers a number of other grades and grade variations not covered in this summary, including 4, 5.1, 5.2, 8.1, and 8.2.
| Grade | Nominal Size, inches | Full Size Proofload, psi | Yield Strength, min, psi | Tensile Strength, min, psi | Elong, min, % | RA, min, % | Core Hardness, Rockwell | Tempering Temperature, min |
|---|---|---|---|---|---|---|---|---|
| 1 | 1/4 thru 1-1/2 | 33,000 | 36,000 | 60,000 | 18 | 35 | B7 to B100 | N/A |
| 2 | 1/4 thru 3/4 | 55,000 | 57,000 | 74,000 | 18 | 35 | B80 to B100 | N/A |
| Over 3/4 thru 1-1/2 | 33,000 | 36,000 | 60,000 | 18 | 35 | B70 to B100 | ||
| 5 | 1/4 thru 1 | 85,000 | 92,000 | 120,000 | 14 | 35 | C25 to C34 | 800F |
| Over 1 thru 1-1/2 | 74,000 | 81,000 | 105,000 | 14 | 35 | C19 to C30 | ||
| 8 | 1/4 thru 1-1/2 | 120,000 | 130,000 | 150,000 | 12 | 35 | C33 to C39 | 800F |
| Grade 2 requirements for sizes 1/4" thru 3/4" apply only to bolts 6" and shorter, and to studs of all lengths. For bolts longer than 6", Grade 1 requirements shall apply. | ||||||||
| Grade | Material | Carbon, % | Phosphorus, % | Sulfur, % | Grade Marking |
|---|---|---|---|---|---|
| 1 | Low or Medium Carbon Steel | 0.55 max | 0.030 max | 0.050 max | None |
| 2 | Low or Medium Carbon Steel | 0.15 - 0.55 | 0.030 max | 0.050 max | None |
| 5 | Medium Carbon Steel | 0.28 - 0.55 | 0.030 max | 0.050 max | |
| 8 | Medium Carbon Alloy Steel | 0.28 - 0.55 | 0.030 max | 0.050 max |
| Nuts | Washers |
|---|---|
| J995 | N/A |
For fasteners larger than 1-1/2″ in diameter, the following ASTM grades should be considered.
| SAE J429 Grade | ASTM Equivalent |
|---|---|
| Grade 1 | A307 Grades A or B |
| Grade 2 | A307 Grades A or B |
| Grade 5 | A449 |
| Grade 8 | A354 Grade BD |
| This chart compares SAE and ASTM specifications that are similar but not identical in diameters through 1½". | |
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Shanghai Jian & Mei Industry and Trade Co., Ltd. is the company which manufacture and export fasteners and metal hardware, founded in 2006, with import-export authority. Now, 80% products export to all over the world and 20% sell in domestic market.