What the M3 x 2mm set screw does

The Stainless Steel Metric Thread Set Screw / Grub Screw - M3 x 2mm (10 Pack) is a precision fastener for secure, flush fastening in mechanical and precision assemblies. This headless screw format is commonly used to lock pulleys, gears, and other components onto shafts without leaving any part of the fastener protruding.

Key features of the stainless steel grub screw

• Premium stainless steel construction provides corrosion resistance and long-lasting durability in a range of environments.
• Precision metric thread in M3 x 2mm supports a secure and accurate fit in metric-based assemblies.
• Headless grub screw design sits flush within the assembly for a smooth, clean finish.
• Hex (Allen) drive allows strong torque application for dependable fastening.
• 10-pack quantity provides multiple screws for builds, maintenance, or replacements.

Where these metric set screws are commonly used

These M3 x 2mm set screws are well suited to machinery, electronics, and 3D printing applications that need a discreet but reliable fastening method. The compact, flush design is especially useful wherever shaft-mounted components need to be secured without adding external bulk.

Typical use cases

• Securing pulleys to shafts in 3D printers and motion systems
• Fastening gears in compact mechanical assemblies
• Holding small components in electronics and precision equipment
• Replacing worn or missing metric grub screws in maintenance work