Size: 1-3/8 inch split lock washer Key benefits and features - Function: Prevents fastener loosening in high vibration and dynamic load conditions by maintaining clamping force. - Design: Split form provides a locking action that bites into mating surfaces for reliable retention. - Compatibility: Designed for fasteners sized to 1-3/8 inch; works with standard bolts and nuts of the corresponding size. - Performance: Helps reduce joint movement and maintain integrity of assemblies under repetitive or shock loads. - Material: Material specification is not listed in this description; please refer to the product specification for exact material details. Use scenarios - Automotive or vehicle assembly: securing engine components, brackets, or mounts that experience engine vibration. - Industrial equipment and machinery: fastening motor mounts, pumps, or fatigue-prone joints in vibrating environments. - Outdoor power equipment and heavy-duty DIY: locking frame joints and other structural fasteners on equipment exposed to movement and vibration.