M3 x 4 Socket Set ( Grubb) Screws Cup Point Grade 45H Self Colour DIN 916

Grub screws or socket set screws ,A hexagon  key (Allen) is required to fit these fasteners, used for   collars,shaft or knobs etc.

Product Details

• M3.0  x 0.50mm Pitch

• Coarse Thread

• 1.50mm  Allen Key Size

• Grade 45H