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madagascar Self-drilling Screw
We could manufacture various self-drilling screws.Head type are CSK,pan,hexagon,round,slotted head,ect. We could produce carbon steel or stainless steel as customer’s requirement. It’s widely used in ,construction,new materials,Steel structure,ect. t. We could produce carbon steel or stainless...
Category:
madagascarMachine Screws
Product Description
We could manufacture various self-drilling screws.Head type are CSK,pan,hexagon,round,slotted head,ect. We could produce carbon steel or stainless steel as customer’s requirement. It’s widely used in ,construction,new materials,Steel structure,ect.
We could produce carbon steel or stainless steel as customer’s requirement. It’s widely used in ,construction,new materials,Steel structure,ect.

| Nominal diameter d |
ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
| P | Pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| a | Max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| c | Min | 0.4 | 0.6 | 0.8 | 0.9 | 1 | 1 |
| dc | Max | 6.30 | 8.3 | 8.8 | 10.5 | 11 | 13.5 |
| Min | 5.80 |
7.6 |
8.1 | 9.8 | 10 | 12.2 | |
| e | Min | 4.28 | 5.96 | 7.59 | 8.71 | 8.71 | 10.95 |
| k | Max=Nominal diameter | 2.80 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 |
| Min | 2.50 | 3 | 3.6 | 3.8 | 4.8 | 5.3 | |
| kw | Min | 1.3 | 1.5 | 1.8 | 2.2 | 2.7 | 3.1 |
| r | Min | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 |
| s | Max=Nominal diameter | 4.00 | 5.5 | 7 | 8 | 8 | 10 |
| Min | 3.82 | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | |
| Depth or sheet metal thickness | Min | 0.7 | 0.7 | 1.75 | 1.75 | 1.75 | 2 |
| Max | 1.9 | 2.25 | 3 | 4.4 | 5.25 | 6 | |
| Lg Min | - | - | - | - | - | - | - |