Secure thin metal roofing and siding panels to wooden framing in post-frame buildings. These screws have a sharp tip to pierce metal and deep, widely spaced threads to grip wood. They resist pullout, even in high winds or under heavy vibration. The sealing washer keeps out water to prevent leaks.

Length is measured from under the head.

Tighten these corrosion-resistant screws with a nutdriver or socket to mount plastic panels. Wings under the head cut a hole slightly larger than the threads, so the plastic can expand and contract as temperatures change. The threads engage only with the wood below, leaving space for the plastic. A washer made from aluminum and rubber bonded to steel adds a watertight seal.

Mount plastic panels to wood with screws that prevent cracking and warping. Wings under the head cut a hole slightly larger than the threads, so the plastic can expand and contract as temperatures change. The threads engage only with the wood below, leaving space for the plastic. Screws have a washer made from aluminum and rubber bonded to steel for a watertight seal. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.

Length is measured from under the head.

Use the high torque of a nutdriver or socket to mount plastic panels to wood without cracking or warping them. Wings under the head cut a hole slightly larger than the threads, so the plastic can expand and contract as temperatures change. The threads engage only with the wood below, leaving space for the plastic. A washer made from aluminum and rubber bonded to steel adds a watertight seal.