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3 1/4 Hex Cap Screws (ASME B18. 2.1)
Hex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.
9 results, (click on any line for more information)
| Buy Hex Cap Screws from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 11 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 50 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 20 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 40 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 20 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 75 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 16 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 50 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 10 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 90 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 20 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 40 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 11 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 75 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 20 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 60 |
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| BIG BOLT | IL | Hex Head Cap Screw | Grade B | Plain | 3 1/4-4 x 18 | bolt & c/s heavy h/b (b7 b8 a307b etc.)hvyhex b18.2.1 | 50 |
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