SJ is China manufacturer & supplier who mainly produces Non-Standard Stud Bolt Processing with many years of experience. SJ is a leading China v manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products.With equipped various advanced machines including lathe machine, milling machine,grinding machine and cnc machining center, all machining non-standard Stud bolts which we manufactured were conform to customer’s specification. Our stud bolts exported to Germany, Britain, Italy, USA, Canada and Japan.
Material | SS304,SS306,SS316,AL2024,AL7075,AL6061,AL6063,C3600,C3771 |
Surface treatment | Anodized, Hard anodized, Oil painted, Galvanized, Nickel plating |
Packaging | Neutral packing, blister and bubble plastic bag, or custom packaging |
Lead time | 7-10 days for sample orders, 15-25 days for mass production orders. |
Payment terms | T/T, By Paypal, By Western Union. |
Processing machines | Lathe machine, Milling machine, CNC machining center, Grinder |
2.Q: What is black zinc plating?
A: Black zinc plating is used to provide corrosion protection and anti-galling properties to parts in high wear, high temperature, and corrosive environments. It is achieved by applying zinc plating followed by black chromate conversion plating. The result is a uniform, durable coating providing corrosion and wear resistance as well as anti-galling properties. The surface color can range from matte to different iridescent hues. Black zinc plating is thicker than other plating methods, which may affect the dimensions of tight fitting parts.