IMPERIAL SOCKET HEAD CAP SCREW UNC SELF COLOUR 1936
Socket Head Cap Screws are also known as SHCS, Allen screw or Allen bolt, or simply a cap screw. The contact surfaces of this screw or bolt are protected from external damage. Generally manufactured with a partial thread beyond a certain length and nominal diameter combination, but occasionally some stock may include a fully threaded shank at the same combination.
Specification:
- Conforming to ASME / ANSI B18.3 1986, BS 2470
- Inch thread: Class 3A Fit over 11 /8 2AFIT
- Hardness RC38/43
- The self colour screw surface finish for self colour is “Black Oxide†after heat treatment
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