Product Description：

  Coloured Plastic, Please state colour when ordering
Ideal for keeping crud and muck out of socket cap head bolts
The spigot diameter is approximately 3.2 mm and is designed to fit in the hexagon allen key socket (3 mm AF) of an M4 socket cap head bolt.
The cap diameter is 9 mm and slightly domed.

Keywords： LEPE Allen Screw Caps,M8 Allen Screw Caps

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