Slef Drilling Screw Categories:
According to the purpose and shape can be divided into the following categories:
1.Cross recessed pan head drilling screws with tapping screw thread with tapping screw, Cross recessed pan head drilling screws with tapping screw thread execution standard: GB/T 15856.1 2002
2. Cross recessed countersunk head drilling screws with tapping screw thread execution standard: GB/T 15856.2 2002
3. The philips oval head self-drilling screw with tapping screw, Cross recessed countersunk head drilling screws with tapping screw thread execution standard: GB/T 15856.3 2002
4. Hex flang head self-drilling screw with tapping screw, Hexagon flange head drilling screws with tapping screw thread execution standard: GB/T 15856.4 2002
5.Hexagon washer head drilling screws with tapping screw thread Execution standard: GB/T 15856.5 2002
.Large Wafer Head Self Drilling Screw
.Pan Framing Head Self Drilling Screw
.Bulge Head Self Drilling Screw
.CSK Head Philips Self Drilling Screw
.Pan Head Self Drilling Screws
.Truss Head Phillips Self Drilling Screws
.Hex Washer Head Self Drilling Screw with EPDM Bonded Washer
.Hex Washer Head Self Drilling Screw
.Hex Flange Head Self Drilling Screws