Product Description
Thread - UNF (Imperial fine thread).Grade - 5 (8.8) High tensile zinc plated steel.
Sizes - 1/4"-28 ,, 5/16"-24,, & ,, 3/8"-24.
Contains: 20 1/4 x 1/2 Set Screw Fully Threaded Bolts 20 1/4 x 3/4 Set Screw Fully Threaded Bolts 20 1/4 x 1 Set Screw Fully Threaded Bolts 20 5/16 x 1/2 Set Screw Fully Threaded Bolts 20 5/16 x 3/4 Set Screw Fully Threaded Bolts 16 5/16 x 1 Set Screw Fully Threaded Bolts 12 3/8 x 3/4 Set Screw Fully Threaded Bolts 10 3/8 x 1 Set Screw Fully Threaded Bolts Comes in handy plastic box with dividers and clip down lid OR refill pack (no box)