... : DIN, ANSI, JIS or as per drawing Stainles steel self drilling screw1). 100% made in Guangdong2). Material: SUS410. SUS304. SUS316 etc ... ,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 ... according to customers' requirements with high quality Stainless Steel Self Drilling Screw