... .. Non Standard Bolts,Non Standard Hardware,USA Bolts And Nuts.1.What’s the specification of ... ,Countersunk head,Bugle head,Oval head,Hex flange head,Round head,Ball head, ... type...FinishZinc plated,Nickel plated,Dacroment Plated,chromium plated,Tin plated,Black phosphating ,anodized ,Parkerising,and Environmental Plated is ... to slide when fasteners match with machine,furniture ,drywall ,wood and so on.4. ...