Lock Washers 200/500pcs Internal Tooth Star Lock Washers M3 M4 M5 M6 M8 M10 Brass Serrated Gasket(M10 200pcs)

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 fullyVarious Sizes: M3 M4 M5 M6 M8 M10;Widely Usage: This external & internal tooth star lock washers assortment kit suitable for electrical connections on household and commercial appliances automotive and marine uses in which the power source has a threaded/bolt-type connection;Thickness(mm) : 0.4mm-0.9mmDIY Supplies : MetalworkingMaterial : BrassNote:1. The item is small in size, please keep it away from kids.2.Please allow 1-3mm errors due to manual measurement.3.Due to light and screen setting difference, item's color may be slightly different from the pictures.

• 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