... ). Screws length:9.5mm to 300mm5). Screw head:pan,round,hex flange,wafer...etc6). Drill point type:general drilling point,Z point ... ,reduced drilling point,drilling point wingtek7). Drill point length:#1PT,#2PT,#3PT,#4PT,#5PT8). 25kg per carton ... according to customers' requirements with high quality stainless steel hex head self drilling screw