pan head self stapping screw Material: carbon, stainless, alloy steel Size: M3-M30 Grade: 10.9 Finish: zinc, plain, black Specifications of pan head self stapping screw:1. Material: carbon, stainless, alloy steel2. Size: M6-M303. Grade: 10.94. Finish: zinc, plain, black5. Packing: carton or according to customer requirments6. Payment: T/T, L/CProduct photos for reference