Various din & is standards with coating like hot dip galvanized, white/yellow/blue zinc & black with the capacity of 1000mt per month. we are already supplying to middle east, european countries with great volume. hex bolts din 933/931 & is (with split pin hole & without also) hex nuts din 934 & is carriage bolts / mushroom head square nuts / flat head carriage bolts din 603/607 & is square head bolts with square nuts din 21346 & is washers (din 125, 127 & 9021) flange bolts & nuts din 6923/6921 & is foundation bolts is anti theft bolts & nuts button head bolts & nuts step bolts with nuts l / u / t / j bolts.