Items DescriptionMaterial304(A2-70) chrome steel / black carbon steelPackage includeTotal 320pcsM2 50pcs /M2.5 50pcs /M3 100pcs /M3.5 25pcsM4 25pcs /M5 25pcs/M6 25pcs /M8 20pcsFAQ:1.How long will my equipment send out?We will ship out as quickly as possible, Usually all the package might be ship out within forty eight hours.2. Wholesalers and merchants are welcomed.For wholesale, just please contact to us, we are able to offer discount. If you're a store and wish make your individual business, lets send the products on your customers straight and won't go away details about us if you'd like to.3.What must I do if I don't acquire my item? Or the product has some problem?Please contact us first, we will do our best to solver it, we want to offer full refund or resend it for you. We are sincere seller, so don't worry.4.How to do when I measure the dimensions is smaller than ordered?Usually the screw might be look smaller, If you employ the original rule to measure the screw, maybe it's going to have error, will probably be appearance smaller. The right method to measure the screw is by vernier caliper.5.The chrome steel fastener can be attracted by means of a magnet.Most humans suppose the chrome steel can't be attracted through a magnet. But the stainless-steel has many systems, some can’t be attracted by means of magnet, but some can. And the chrome steel may have slightly magnetic after it made to screw or other thing. If want the stainless-steel can't be attracted by way of a magnet, Demagnetization is required. The appropriate strategy to discern it's chrome steel or not is useing spectroscopic devices or potions.Please trust us, we solely promote the effective chrome steel fastener.