Self-Drilling Screws
Countersunk Head
Fixing sheeting to steel where a large head is required.
Head Type
Countersunk Head
Drive Style
Phillips
Thread Type
BSD (general thread)、CSD (fine thread)
Drill Point
No.2 / No.3
Material
C1022 / 10B21 Carbon Steel from CSC Taiwan
Surface Coating
Zinc / Zinc Yellow / Ruspert / Mechanical Zinc
Size
M3.5 / M4.2 / M4.8
Length
400mm (max.)
M3.5 / #6-20
M4.2 / #8-18
M4.8 / #10-16
Available Sizes
Dimension
| mm | inch | Drilling Point | Drill Capacity |
| M3.5 x 10 | #6-20 x 3/8" | NO.2 | 1.0mm |
| M3.5 x 13 | #6-20 x 1/2" | NO.2 | 1.0mm |
| M3.5 x 16 | #6-20 x 5/8" | NO.2 | 1.0mm |
| M3.5 x 19 | #6-20 x 3/4" | NO.2 | 1.0mm |
| M3.5 x 25 | #6-20 x 1" | NO.2 | 1.0mm |
| - | - | - | - |
| M4.2 x 13 | #8-18 x 1/2" | NO.2 | 2.0mm |
| M4.2 x 16 | #8-18 x 5/8" | NO.2 | 2.0mm |
| M4.2 x 19 | #8-18 x 3/4" | NO.2 | 2.0mm |
| M4.2 x 25 | #8-18 x 1" | NO.2 | 2.0mm |
| M4.8 x 13 | #10-16 x 1/2" | NO.2 | 2.0mm |
| M4.8 x 16 | #10-16 x 5/8" | NO.2 | 2.0mm |
| M4.8 x 19 | #10-16 x 3/4" | NO.2 | 2.0mm |
| M4.8 x 25 | #10-16 x 1" | NO.3 | 3.0mm |
| M4.8 x 32 | #10-16 x 1-1/4" | NO.3 | 3.0mm |
| M4.8 x 38 | #10-16 x 1-1/2" | NO.3 | 3.0mm |
