K2 Systems DR #14 x 3’’ x 5/16 Hex Head Screw

K2 Systems DR #14 x 3’’ x 5/16 Hex Head Screw

Self-tapping screw with EPDM washer, compatible with multiple roof types. This screw can be drilled into the rafter or the decking and is compatible with multiple K2 roof attachments.

• Model/Type: 4000310
• Finish: Mill
• Included Hardware: DR #14 × 3″ × 5/16 Hex Head Screw only
• Durable & Certified: The DR #14 × 3″ × 5/16 Hex Head Screw (4000310) is a robust self‑tapping screw with an integrated EPDM sealing washer for corrosion‑resistant performance and strong pull‑out strength in solar mounting applications, and while it doesn’t list an individual formal certification like UL on its own, it is engineered by K2 Systems for use in code‑compliant roof‑mount assemblies with structural fasteners intended to meet industry structural requirements.
• Water Protection & Fit: The DR #14 × 3″ × 5/16 Hex Head Screw (4000310) helps **seal roof penetrations against water when installed through a roof‑mount component because it features an integrated EPDM sealing washer under the hex head that compresses to form a water‑resistant barrier, and it is designed to fit as a self‑tapping fastener for securing K2 roof‑attachment parts (like Splice Foot XL and other solar mounts) into decking or rafters with a standard 5/16″ hex drive.