M6.3X185mm Q10 with EPDM Washers

Roof Panel Screws with EPDM Washers Give Good Protection
These are signature product of Sun Through. This Q10 screws can drill up to 30mm steel plate, and the silver coating gives it nice anti-corrosion protection.
Roof screws with correct size of EPDM washer will prevent water leaking well. If your area is facing heavy rain or heavy snow, this kind of screws will be right choice for you. We can ship the screws with EPDM washer's on in good box package.
This product is offered with length from 38 to 365mm, head type to bugle head/flat head/pan head/lotus head/ round head, and washer size from 16mm to 22mm.

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