Knurled Head M4 X 8mm Shoulder Type Thumb Screws With 4.0mm Thread Dia, Fully Threaded Steel With Nickel Coating, Slotted And Phillips Drive, Handy For Quick Adjustments, 20 Pieces

Knurled Head M4 Thumb Screws with 8mm Shoulder, 20 pcs
✔️ M4 x 8mm knurled head thumb screws, nickel coated, 20 pcs

These knurled head thumb screws are hand-adjustable fasteners designed for quick, tool-free setup in fixtures, electronics enclosures, and equipment mounts. The large knurled head provides a firm grip for fast adjustments while the 4.0 mm thread diameter fits common M4 threads. Pack includes 20 pieces.

✅ Material: steel with nickel coating
✅ Thread diameter: 4.0 mm (0.157 in)
✅ Length: 8 mm shoulder, fully threaded body
✅ Drive options: knurled head, slotted, Phillips
✅ Pack size: 20 pieces

💡 What is a knurled head thumb screw used for in mechanical assemblies?

This handy fastener is designed for quick, tool-free adjustments and secure positioning in fixtures and equipment. - Handy for quick, tool-free adjustments in fixtures and equipment - Provides secure grip with knurled head for easy tightening - 4.0 mm thread diameter and 8 mm shoulder length ensure stable fit - Nickel coating helps resist corrosion in tough environments