2a all ends thread class on 1st end 1/32 radius undercut to 7/16 in.dia thd relief anodize surface treated long w/ offset wrenching facility unf all ends thread series
2b all ends thread class mounting holes in 2 cornors 0.218 in.min dia, 0.226 in.max dia, lockwire holes 0.057 in.dia in each corner anodize surface treated unf all ends thread series
3b all ends thread class lockwire hole 0.620 in. from second end, 0.057 in. dia, bulkhead, unef thd series, 0.625 in. thd size first end anodize surface treated rigid, short center wrenching facility unf all ends thread series