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About Hex Head Screws and Bolts
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Extreme-Strength Stainless Steel Flanged Hex Head Screws
Fully Threaded
Partially Threaded
For strength comparable to that of Grade 9 steel and the corrosion resistance of stainless steel, choose these screws. They are work-hardened for extreme strength and can be used in heavy duty stamping applications as well as earth-moving machinery, such as bulldozers and excavators. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.
450 stainless steel screws are more corrosion resistant than 18-8 stainless steel screws and have good resistance to chemicals and salt water. They are magnetic.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing  | Wd. | Ht. | Flange Dia. | Tensile Strength, psi | Each | |
450 Stainless Steel | |||||||||
1/4"-20 | |||||||||
| 1 1/4" | Partially Threaded | 1" | Coarse | 5/16" | 1/4" | 33/64" | 170,000 | 000000000 | 00000 |
| 1 1/2" | Partially Threaded | 1" | Coarse | 5/16" | 1/4" | 33/64" | 170,000 | 000000000 | 0000 |
| 2" | Partially Threaded | 1" | Coarse | 5/16" | 1/4" | 33/64" | 170,000 | 000000000 | 0000 |
5/16"-18 | |||||||||
| 1 1/2" | Partially Threaded | 1" | Coarse | 3/8" | 5/16" | 5/8" | 170,000 | 000000000 | 0000 |
| 2" | Partially Threaded | 1" | Coarse | 3/8" | 5/16" | 5/8" | 170,000 | 000000000 | 0000 |
3/8"-16 | |||||||||
| 1 1/2" | Partially Threaded | 1 1/8" | Coarse | 7/16" | 23/64" | 45/64" | 170,000 | 000000000 | 0000 |
| 2" | Partially Threaded | 1 1/8" | Coarse | 7/16" | 23/64" | 45/64" | 170,000 | 000000000 | 0000 |
| 2 1/2" | Partially Threaded | 1 1/8" | Coarse | 7/16" | 23/64" | 45/64" | 170,000 | 000000000 | 0000 |
| 3" | Partially Threaded | 1 1/8" | Coarse | 7/16" | 23/64" | 45/64" | 170,000 | 000000000 | 0000 |
7/16"-14 | |||||||||
| 1 1/4" | Fully Threaded | __ | Coarse | 7/16" | 27/64" | 43/64" | 170,000 | 000000000 | 0000 |
| 1 1/2" | Partially Threaded | 1 1/4" | Coarse | 7/16" | 27/64" | 43/64" | 170,000 | 000000000 | 0000 |
| 2" | Partially Threaded | 1 1/4" | Coarse | 7/16" | 27/64" | 43/64" | 170,000 | 000000000 | 0000 |
1/2"-13 | |||||||||
| 1" | Fully Threaded | __ | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 0000 |
| 1 1/2" | Partially Threaded | 1 1/4" | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 0000 |
| 2" | Partially Threaded | 1 1/4" | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 1 1/4" | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 00000 |
| 3" | Partially Threaded | 1 1/4" | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 00000 |
| 3 1/2" | Partially Threaded | 1 1/4" | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 00000 |
| 4" | Partially Threaded | 1 1/4" | Coarse | 9/16" | 15/32" | 27/32" | 170,000 | 000000000 | 00000 |