DIAMOND ENGINEERING BOLT ASST 12PT CRSE LONG ZT03P
Custom 450 stainless steel, polished to a mirror finish. 180,000 psi tensile. 20% stronger than Grade 8. UNJ3A rolled threads. Includes a 32-compartment labeled tray. Includes 18 sizes - 90 pieces - five of each size of 1/4-20 x 23/4" through 4", 5/16-18 x 23/4" through 4" and 3/8-16 x 23/4" through 4"