2-5pcs M3 M4 M5 M6 M8 M10 M12 *10mm to 80mm Star Hand Tighten Thumb Screw Knob Tightening Screw Bolts(X40mm,M8 2pcs)

Material:Carbon SteelThread size:M3 M4 M5 M6 M8 M10L=10mm to 80mmM4 M5 M6 D=25mmM8 D=31mmM10 D=38mmPackage include:Choose according to your needs!Note:Transition: 1cm=10mm=0.39inch 1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.5-2 mm differences due to manual measurement.

• Smooth Surface:The star head knob is very smooth and very suitable for gripping. Beautiful and practical, safe and reliable, with good tightness.
• Material:The thread clamping knob is made of Durable, which has good toughness and impact resistance, making it sturdy and durable. The surface of the screw is galvanized to prevent rust.
• Widely used for mechanical equipments, instruments, apparatus, industry equipments.Someone uses it as an umbrella handle, maybe it can inspire your project, Is a small and replaceable part.
• Simple installation, no need for other tools, can be installed or disassembled with 1 hand, saving your time.
• Application】Widely used for lathe machine, mechanical equipment, instrument and apparatus, food and pharmaceutical industry equipment. It can be used in drill press, lathes, fixture, feather board and fences, and other places where ,is your daily life to replace the tightening screw.