1213 products
High-Strength Grade 8 Steel Hex Head Screws are engineered for critical applications requiring maximum tensile strength and fatigue resistance. Manufactured from premium alloy steel and heat-treated to meet rigorous Grade 8 or Class 10.9/12.9 standards, these fasteners provide exceptional clamping force and structural integrity. Ideal for heavy machinery, automotive suspension, and high-stress industrial environments, they ensure long-term reliability where failure is not an option.
| Part Number | Thread Size | Length | Threading | Specifications Met | Thread Type | Head Diameter | Head Height | Material | Tensile Strength | Hardness |
|---|---|---|---|---|---|---|---|---|---|---|
| 0228FA01016 | 5/16"-18 | 3" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00433 | 5/16"-18 | 3" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00645 | 5/16"-18 | 3" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00118 | 5/16"-18 | 3" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00117 | 5/16"-18 | 3 1/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01017 | 5/16"-18 | 3 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00434 | 5/16"-18 | 3 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00646 | 5/16"-18 | 3 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00120 | 5/16"-18 | 3 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00122 | 5/16"-18 | 3 3/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01018 | 5/16"-18 | 4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00435 | 5/16"-18 | 4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00647 | 5/16"-18 | 4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00121 | 5/16"-18 | 4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00130 | 5/16"-18 | 4 1/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01019 | 5/16"-18 | 4 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00452 | 5/16"-18 | 4 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00123 | 5/16"-18 | 4 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00005 | 5/16"-18 | 4 3/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01020 | 5/16"-18 | 5" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00454 | 5/16"-18 | 5" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00648 | 5/16"-18 | 5" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00126 | 5/16"-18 | 5" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00006 | 5/16"-18 | 5 1/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01021 | 5/16"-18 | 5 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00455 | 5/16"-18 | 5 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00514 | 5/16"-18 | 5 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00124 | 5/16"-18 | 5 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00007 | 5/16"-18 | 5 3/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01022 | 5/16"-18 | 6" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00457 | 5/16"-18 | 6" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00125 | 5/16"-18 | 6" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00127 | 5/16"-18 | 6 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00128 | 5/16"-18 | 7" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00129 | 5/16"-18 | 7 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00047 | 5/16"-18 | 8" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00008 | 5/16"-18 | 9" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00009 | 5/16"-18 | 10" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00010 | 5/16"-18 | 12" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01023 | 5/16"-24 | 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01027 | 5/16"-24 | 5/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00649 | 5/16"-24 | 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01024 | 5/16"-24 | 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01028 | 5/16"-24 | 7/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00650 | 5/16"-24 | 1" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01025 | 5/16"-24 | 1" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00651 | 5/16"-24 | 1 1/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01026 | 5/16"-24 | 1 1/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01029 | 5/16"-24 | 1 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00652 | 5/16"-24 | 1 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00131 | 5/16"-24 | 1 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00919 | 5/16"-24 | 1 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00653 | 5/16"-24 | 1 3/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00132 | 5/16"-24 | 1 3/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01030 | 5/16"-24 | 2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00654 | 5/16"-24 | 2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00133 | 5/16"-24 | 2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00136 | 5/16"-24 | 2 1/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01031 | 5/16"-24 | 2 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00655 | 5/16"-24 | 2 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00134 | 5/16"-24 | 2 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00137 | 5/16"-24 | 2 3/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01032 | 5/16"-24 | 3" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00656 | 5/16"-24 | 3" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00135 | 5/16"-24 | 3" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00138 | 5/16"-24 | 3 1/4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01033 | 5/16"-24 | 3 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00139 | 5/16"-24 | 3 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01034 | 5/16"-24 | 4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00048 | 5/16"-24 | 4" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00049 | 5/16"-24 | 4 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00050 | 5/16"-24 | 5" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00051 | 5/16"-24 | 5 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00052 | 5/16"-24 | 6" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00053 | 5/16"-24 | 6 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00054 | 5/16"-24 | 7" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00862 | 5/16"-24 | 7 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 13/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00055 | 5/16"-24 | 8" | Partially Threaded | ASME B18.2.1, SAE J429 | UNF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00820 | 5/16"-32 | 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNEF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00821 | 5/16"-32 | 1" | Fully Threaded | ASME B18.2.1, SAE J429 | UNEF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00822 | 5/16"-32 | 1 1/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNEF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00823 | 5/16"-32 | 1 1/2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNEF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00824 | 5/16"-32 | 2" | Partially Threaded | ASME B18.2.1, SAE J429 | UNEF | - | 7/32" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00458 | 3/8"-16 | 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00657 | 3/8"-16 | 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01035 | 3/8"-16 | 1/2" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00806 | 3/8"-16 | 5/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01036 | 3/8"-16 | 5/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00460 | 3/8"-16 | 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00807 | 3/8"-16 | 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01037 | 3/8"-16 | 3/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00808 | 3/8"-16 | 7/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01038 | 3/8"-16 | 7/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00461 | 3/8"-16 | 1" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00809 | 3/8"-16 | 1" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01039 | 3/8"-16 | 1" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00659 | 3/8"-16 | 1 1/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
| 0228FA01049 | 3/8"-16 | 1 1/8" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00401 | 3/8"-16 | 1 1/8" | Partially Threaded | ASME B18.2.1, SAE J429 | UNC | - | 1/4" | Steel | 150000 psi | Rockwell C33 |
| 0228FA00462 | 3/8"-16 | 1 1/4" | Fully Threaded | ASME B18.2.1, SAE J429 | UNC | - | 15/64" | Steel | 150000 psi | Rockwell C33 |
