Big Gauge Self-drilling Screws

M8.0 Spiral Point #8.
When fixing metal sheets, roof sheets, corrugated boards, or even sandwich panels onto a 20 mm thick H-beam, usually a screw of M5.5 or M6.3 in size will be sufficient. What if you need to fix heavy structures like advertisement boards, machines or equipment to studs? This big gauge will provide extra security.
Sun Through is the few manufacturers in the world who can produce M8.0 self-drilling screws which drills a 20mm steel.

                                         Carbon Steel or SS410
Drilling point size Q5 Q6 Q7  Q8 Q9 Q10
Drilling capacity  12mm 15mm 18mm 21mm 25mm 30mm
Nominal size customized from M5.5 to M8.0 (#12 to #14 above)
Length customized from 38mm~350mm
Material C1018/C1022/SS410      
                                            Bi-metal                                                        
Drilling point size Q5 Q6 Q7  Q8 Q9  
Drilling capacity  12mm 15mm 18mm 21mm 25mm  
Nominal size customized from M5.5 to M7.0 (#12 to #14 above)
Length customized from 38mm~350mm
Material A2/A4  Steel Alloy

*** specifications can be customized, contact us for specific specs***