Spiral Point Roofing Screws with EPDM Bonded Washer

Spiral Point Roofing Screws with EPDM Bonded Washer

Sun Through offers roofing screws coupled with EPDM bonded washers for sealing purpose.
We suggest the material of metal part of EPDM bonded washer to be the same as screws to avoid galvanic corrosion.
                                         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***