M3 X 8mm Grub Screw MS Black Anodized

Diameter: 3mm 
Bolt Length: 8mm 
Material: Mild Steel (Black anodized) 

The M3 x 8mm Grub screw is 3mm in diameter and 8mm long. Made from Mild Steel material the grub screw has a black anodized finish that will protect it from any sort of corrosion.

A grub screw is generally used to secure an item against another item. It is commonly used as a locking device, particularly on custom modified Gears, pillow ball bearings, taper locking bushes, pulleys or adjusting rings. 

Grub Screws are designed with a hexagonal internal drive in the head, allowing them to be tightened and loosened with an Allen key.