Pan head screw combination is how produced? Flat pad, spring washer head combination screw is through the feeding disc assembly to have good light nail head above, through the cutting track, rolling, complete assembly.

Pan head screw combination is widely used in electrical industry, a good product from a small combination screw grab. Minimum requirements for Ming pan head combination screw is to pass through only the rules, regulations, and can withstand all kinds of inspection and certification!