Round Head Square Neck Bolt

Round head square neck bolt 1) standards: din & ansi & jis & ifi 2) material: carbon steel, alloy steel, stainless steel 3) size: m8-m20,38"--78" 4) surface: plain,zinc ,hdg,dac,geomet 5) thread: unc, unf, metric thread 6) quality control : iso 9001 7) package : small box ,poly bag,carton+pallet 8) payment term : tt ,lc or weston union 9) delivery: 30 days or depend on the qty.