ST-XL Stainless Steel Cap Screw

Designed as an alternative to the zinc-aluminum alloy head. It is also used to attach steel roofing used in post-fram & residential construction. The smaller cupped HWH provides an attractive low-profile appearance versus larger HWH fasteners.

ST-XL is an excellent choice for Galvalume or other long-life metal roofs.

The combination of a Micro-Bit drills 29 & 26 gauge consistently & eliminates the metal shavings that can embed themselves in the EPDM rubber washer.