Tooth Lock Washers
426 Products
External-Tooth Lock Washers
External-Tooth Lock Washers are designed with teeth around the outer edge that bite into the material being fastened, creating a secure grip and preventing the fastener from loosening. The external teeth provide greater surface contact and are especially effective in preventing rotation of the fastener in high-vibration environments.
Metric External-Tooth Lock Washers
Metric External-Tooth Lock Washers are designed with teeth on the outer edge that grip the material being fastened, preventing the rotation of the fastener and resisting loosening, particularly in high-vibration environments. These washers are sized to fit metric fasteners, ensuring a precise fit and reliable performance.
Mil. Spec. External-Tooth Lock Washers
Mil. Spec. External-Tooth Lock Washers are designed to meet military specifications (Mil-Spec), ensuring high-quality performance and durability in demanding environments. These washers feature external teeth that grip the surface material, preventing the fastener from loosening, particularly in high-vibration or dynamic load applications.
Tight-Grip External-Tooth Lock Washers
Tight-Grip External-Tooth Lock Washers are designed with sharper, more aggressive external teeth to provide an even stronger grip on the surface material, preventing fastener loosening under extreme conditions. These washers are ideal for high-vibration and high-load applications where a secure, non-slip fastening is critical.
Countersunk External-Tooth Lock Washers
Countersunk External-Tooth Lock Washers are designed with external teeth and a countersunk shape to fit under countersunk screws. The teeth grip the surface material, preventing the fastener from loosening due to vibrations or dynamic loads. This combination of countersunk design and locking teeth ensures both a flush finish and secure fastening.
Countersunk Tight-Grip External-Tooth Lock Washers
These washers are designed to work with countersunk screws, ensuring a flush finish while providing superior resistance to loosening under vibration or dynamic loads. The tight-grip teeth dig into the material, offering even stronger fastening security.
Internal-Tooth Lock Washers
Internal-Tooth Lock Washers are designed with teeth on the inner edge that grip the fastener, providing a secure hold and preventing loosening under vibration or dynamic loads. These washers are ideal for applications where the fastener needs to remain stationary, and the internal teeth offer more discreet grip compared to external-tooth versions.
Metric Internal-Tooth Lock Washers
Metric Internal-Tooth Lock Washers are designed with teeth on the inner edge that grip the fastener to prevent loosening, specifically for applications using metric screws or bolts. The internal teeth provide a secure grip while maintaining a compact design, ideal for use in high-vibration environments.
Mil. Spec. Internal-Tooth Lock Washers
These washers feature internal teeth that grip the fastener securely, preventing loosening in high-vibration or dynamic environments. The Mil-Spec compliance guarantees consistent quality and reliability for use in demanding conditions.
Internal-Tooth Lock Washers for Soft Material
Internal-Tooth Lock Washers for Soft Material are designed with teeth on the inner edge that provide a secure grip without damaging softer materials like plastic, wood, or soft metals. These washers are ideal for applications where the fastener needs to remain secure while avoiding excessive pressure that could deform or damage the surface.
Internal-/External-Tooth Lock Washers
The internal teeth grip the fastener, while the external teeth dig into the material surface, offering enhanced stability and preventing loosening under vibration or dynamic loads.




