4-40 UNC IMPERIAL SOCKET HEAD CAP SCREW SOCKET HEAD CAP SCREWS UNC S/COLOUR 1936-1960 the contact surfaces of this

the contact surfaces of this screw or bolt are protected from external damage

40 SOCKET HEAD CAP SCREW 12

only apply to metric Grade 12

Generally manufactured with a partial thread beyond a certain length and nominal diameter combination

9 COARSE ISO 4762 / DIN 912 SELF COLOUR

4-40 UNC IMPERIAL SOCKET HEAD CAP SCREW SOCKET HEAD CAP SCREWS UNC S/COLOUR 1936-1960 the contact surfaces of thisIMPERIAL SOCKET HEAD CAP SCREW UNC SELF COLOUR 1936 1960 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