Diamond Fasteners is a distributor of Military Specification screws including Machine Screws, Tapping Screws, AN Screws, NAS Screws, & MS Screws. Types include captive, drive, machine, set, Sems, self-tapping, shoulder, and seal screws. Materials include carbon, alloy, stainless, brass, bronze, aluminum and more. Industries served include military, aerospace, defense, mechanical, original equipment manufacturers, petro-chemical, power generation & mass transit. All MS screws are DFAR compliant.