Insert Washers - 7/16 ID x .875 OD (10)

The Insert Washers - 7/16 ID x .875 OD (10) from ARP are precision fastener components engineered for critical assembly applications in tactical, firearms, and automotive platforms. These stainless steel washers distribute load across bolt and screw connections, preventing surface damage and ensuring secure, reliable fastening in high-stress environments. Whether you're building AR platforms, assembling law enforcement duty gear, or performing precision gunsmithing, quality washers are non-negotiable for maintaining structural integrity under recoil and repeated use.

With a 7/16-inch inner diameter and .875-inch outer diameter, these ARP washers provide optimal bearing surface for 7/16-inch diameter fasteners while maintaining a low-profile footprint. The .875 OD specification ensures proper load distribution without interference with adjacent components—critical when spacing is tight in modular weapon systems or precision optics mounts. ARP's engineering-grade construction resists corrosion and maintains dimensional consistency through thousands of assembly/disassembly cycles, a requirement in military and law enforcement field conditions where reliability cannot degrade.

This 10-pack is ideal for AR-15 builders, armorer-level maintenance, and professional gunsmiths performing receiver extension, stock tube, or upper receiver fastening. Tactical professionals standardize on quality washers to eliminate galling, prevent fastener loosening under vibration, and reduce reassembly time during equipment maintenance. The compact 4.7 x 0.65 x 7.4-inch package makes these washers practical to stock in any professional toolkit or replacement parts inventory for immediate deployment support.