Lock Washers 640/480Pcs External Multi Tooth Star Lock Washers Assortment Set 7 Size M3 M4 M5 M6 M8 M10 M12(4 * 160pcs)

Installation Tip: Press the washer squarely onto the shaft with even pressure; for best results, use a press or a hammer with a flat drift to ensure all teeth engage fully7 sizes: M3: 30 pcs / M4: 30 pcs / M5: 30 pcs / M6: 25 pcs / M8: 20 pcs / M10: 15 pcs / M12: 10 pcs.Material: Made of high-quality stainless steel [Applications] Widely used in a variety of screw fastening applications, ideal for electrical connections in household and commercial appliances, automobiles and ships.Material : SteelThickness(mm) : Standard thicknessDIY Supplies : MetalworkingNote:The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.The size,color,printing word ,etc is subjectde to the real product.

• nternal Teeth Grip: The sharp inward-pointing prongs dig into the shaft surface when compressed, creating positive mechanical lock that resists loosening from vibration and rotation
• Rigid Core: Formed from hardened steel that maintains its tooth geometry under high clamping force, preventing deformation and ensuring consistent grip through multiple install cycles
• Precision Fit: The uniform inner diameter provides consistent contact with standard shaft sizes, eliminating the play that can cause fasteners to work loose over time
• Bite Retention: The aggressive tooth profile embeds into softer shaft materials, providing reliable holding power even on smooth or lightly lubricated surfaces
• Reusable Hold: Unlike single-use fasteners, the washer can be removed and reinstalled while maintaining its grip, making it suitable for maintenance and adjustment tasks