Lock Washers Internal Tooth Star Lock Washers Assortment Kit Push On Locking Fastener(700PCS(10Set))

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 fullyMaterial: Manganese SteelSuitable for: Machinery, automotive, electronics, construction, and other fields, especially for applications requiring high stability and vibration resistance. Specifications: M3, M4, M5, M6, M8, M10, M12DimensionsM3 diameter: approximately 9mmM4 diameter: approximately 12mmM5 diameter: approximately 14mmM6 diameter: approximately 16mmM8 diameter: approximately 18mmM10 diameter: approximately 20mmM12 diameter: approximately 25mmEasy to install: Push directly into the shaft or slide onto the bolt for quick and easy installation.Quantity: 70 pieces per/setM3*10 PCSM4*10 PCSM5*10 PCSM6*10 PCSM8*10 PCSM10*10 PCSM12*10 PCSPacking List:5/10 set of plum blossom-shaped gasketsNote:Size for manual measurement, there may be a 0 to 3mm error, belongs to the normal phenomenon.And due to the difference between different monitors, the picture may not reflect the actual color of the item.

• 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