Collection: IMPERIAL UNF 1936 SOCKET HEAD CAP SCREW SELF COLOUR

SOCKET HEAD CAP SCREWS UNF SELF COLOUR 1936
Socket Head Cap Screws are also known as SHCS, Allen screw or Allen bolt, or simply a cap screw. 1936-1960 UNC conforming to ASME / ANSI B18.3 1986,  BS 2470:1973, the contact surfaces of this screw or bolt are protected from external damage. Class Fit 3A Hardness RC38/43. 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.
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