5/16 Inch Stainless Steel Internal Tooth Lock Washer, Vibration‑Resistant and Corrosion‑Resistant

Part number 142002DA 5/16 inch internal tooth lock washer, stainless steel Why you need it Prevents fastener loosening caused by vibration and dynamic loads by biting into the screw or nut and mating surface. Maintains joint tension and reduces the need for retightening, saving time during maintenance. Corrosionresistant stainless steel construction ensures long service life in many environments. Key benefits Reliable locking action: internal teeth engage the fastener shank and contact surface to resist rotation. Durable material: stainless steel offers strength and resistance to rust and staining for indoor and outdoor use. Precise fit: sized for 5/16 inch fasteners to provide consistent performance and proper load distribution. Low profile: compact design fits where space is limited without interfering with surrounding components. Product details Function: internal tooth lock washer designed to prevent loosening of screws and nuts under vibration. Compatibility: fits 5/16 inch diameter machine screws and bolts; suitable for standard hardware applications using 5/16 inch fasteners. Size: 5/16 inch nominal diameter specification for reliable mating with corresponding fasteners. Material: stainless steel for corrosion resistance and longterm durability. Performance: effective in maintaining joint integrity in assemblies subject to vibration or thermal cycling. Typical applications Industrial equipment: secure fasteners on motors, pumps, and vibrating machinery to reduce maintenance intervals. Electrical enclosures and panels: retain screw tightness in control boxes and terminal connections where reliable contact is required. Outdoor and marine fittings: use on brackets, clamps, and hardware exposed to weathering for improved longevity. Installation tips Place the internal tooth lock washer between the fastener head or nut and the mating surface with teeth facing the mating surface for engagement. Use with properly sized 5/16 inch fasteners and appropriate torque to avoid overcompression of the teeth. Inspect during routine maintenance and if teeth are worn or the washer is deformed. Part number 142002DA is a straightforward, effective solution for preventing fastener loosening in assemblies that use 5/16 inch hardware and benefit from stainless steel durability.