- self drilling screw for steel roofing
- size(mm) : 4.8x20 / 4.8x20 / 5.5x32
- the rubber under the washer has to be 2.5-3.0mm thickness
This member's information has NOT been authenticated or verified by Alibaba or any third party.
Only Alibaba Gold Suppliers and
TrustPass members have completed an Authentication and Verification procedure conducted by third-party credit-reporting agencies.
For more information on Alibaba Gold Supplier and TrustPass membership, Click here
.
