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| Brand Name : | YongBiao |
| Model Number : | ST5.5 |
| Certification : | ISO9001 |
| Price : | Negotiation |
| Payment Terms : | TT |
| Supply Ability : | 500tons/month |
| Delivery Time : | 7-25Days According to quantity |
Carbon Steel With Washer Self Drilling Screw
These screws have a drill point that allows them to create their own hole in the material, eliminating the need for pre-drilling. This feature significantly speeds up the installation process.Commonly used in metal roofing, siding, and framing applications.

| DIN7504K (Unit:mm) | ||||||
| Diameter d | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
| Pitch p | 1.38 | 1.4 | 1.6 | 1.8 | 1.8 | |
| dc | max | 8.30 | 8.80 | 10.50 | 11.00 | 13.56 |
| min | 7.6 | 8.1 | 9.8 | 10 | 12.2 | |
| S | max | 5.5 | 7.8 | 8 | 8 | 10 |
| min | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | |
| k | max | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 |
| min | 3 | 3.6 | 3.8 | 4.8 | 5.3 | |
| L | 9.5,13,16,19,22,25,32,38,45,50,60,65,70,75,80,85,90,95,100,125,135,145,150,165,180,200,220 | |||||
Construction: Commonly used in metal roofing, siding, and framing applications.
Manufacturing: Ideal for fastening metal panels, brackets, and other components in various machinery and equipment.
DIY Projects: Useful for home improvement tasks that involve metal or wood.


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| NINGBO YONGBIAO FASTENER CO.,LTD |
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