#801290 Diameter Thread Threads Length Grade Finish Weight 0.3125 (5/16) Partial 18 0.3125 (5/16) Plain Finish 0.0050 Diameter 0.3125 (5/16) Thread 18 Length 0.3125 (5/16) Grade Finish Plain Finish Weight 0.0050 Need Something Custom? Attributes Need Something Custom?