carriage bolt

 BS 4933 (British Standard) M5 M6 M8 M10 M12 M16 M20 Screw Length when Bolt Length ??125L 16+2.00 18+2.50 22+3.00 26+3.50 30+4.00 38+4.50 46+5.00 When Bolt Length but ??200-L 22+2.00 24+2.50 28+3.00 32+3.50 36+4.00 44+4.50 52+5...