2. Surface Treatment: Black/ Grey Phosphated
Zinc/ Yellow Zinc/ Black Zinc
3. Head type: pilliips bugle head
4. End type: sharp point/ drilling point
5. Thread: fine thread for metal/ coarse thread for wood
6. Diameter: 3.5mm to 5.2mm/ #6 to #14
Length: 16mm to 150mm/ 1/2" to 5"
7. Package: Small plain box (white or brown)/ Bulk Cartons (with big polybag)








