加拿大采购需求：epdm垫圈，六角头自钻螺钉，pvc垫圈，橡胶垫圈，自钻螺钉，六角头自钻螺钉

I'm interested in sourcing metal roofing screws that feature a 1/4 hex washer head and are specifically colored. I need the type that has a pointed tip for easier installation, not the self-tapping variety. Could you also let me know if you offer these screws in a range of colors? It would be great to have some options to match different roofing styles. Looking forward to your details on availability and pricing.