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254 SMO Screws . Types of 254 SMO Screws. 1) UNS S31254 Screws – It consist of slotted head with a cylindrical threaded body running down length with a point bottom. Also Known as ASTM A182 UNS S31254 Screws. 2) UNS S31254 Cap Screws – It is a typical screw with cylindrical head, and threaded cylindrical body with pointed tip at bottom. Get ...
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