Whether you’re building a custom 1911 or just upgrading grips, these high-quality, economical replacement grip bushings will provide a secure, neat-looking installation. Mfg: Egw SPECS: Carbon steel, blued, or stainless steel (SS), natural finish. Sold in 4-paks. Bushings – .236"-60 tpi exterior threads, .150"-50 tpi interior threads.