cross recessed countersunk head screw

The plating of the self-drilling screw of the cross recessed countersunk head generally refers to the plating of the iron Phillips screw. The stainless steel Phillips screw is rarely plated. The color of the Phillips screw plating is environmentally friendly and non-environmental. The environmental protection plating color has environmental protection white. Zinc, environmentally friendly blue zinc, environmentally friendly color zinc, environmentally friendly black zinc, environmentally friendly white nickel, etc., non-environmental white nickel, white zinc, color zinc, black zinc, black nickel, black, blue zinc.

Cross recessed countersunk head tapping screws: It refers to the cross, the head is flat, countersunk, semi-recessed self-tapping screws. The material is mainly carbon steel and stainless steel. The advantage of the countersunk head is that the material surface of the product is parallel and does not stand out. Expressed in letters as "KA" or "FA" or "OA".