M3 x 3mm Grub Screw – Grade 12.9 Black Oxide is a metric fastener selected for compact mechanical assemblies, maintenance and general engineering use.

Key specifications

• Thread / size: M3
• Length: 3 mm
• Thread pitch: 0.50 mm
• Material: High Tensile Alloy Steel
• Head style: Headless / Set Screw
• Drive: Internal Hex (Allen)
• Finish / coating: Black Oxide
• Strength grade: 12.9
• Recommended tool: 1.5 mm Allen key

Typical applications

• Gears and pulleys
• Shaft collars
• Adjusting rings
• Locking bushes

Headless grub screw for locking one component against another. M3 coarse pitch is 0.50 mm.