#821803 Spec Diameter Thread Threads Length Grade Finish Weight 0.5 (1/2) Partial 13 3.5 (3 1/2) Grade 8 Phos & Oil .248 Diameter 0.5 (1/2) Thread 13 Length 3.5 (3 1/2) Grade Grade 8 Finish Phos & Oil Weight .248 Need Something Custom?