ST Fastening Kwikseal Woodbinder Metal Roofing Screws #10 x 1-1/2 in

In this review the ST Fastening Kwikseal Woodbinder metal-to-wood screws are evaluated for roofers, siding installers and DIYers who need a dependable fastener that seals and resists corrosion. The single biggest reason to buy is the combination of a vulcanized EPDM washer and a strong coated head that prevents leaks and head twist under high torque, making these screws a practical choice for through-fastening metal panels to wood with a secure weatherproof seal.

Key Features

• Coated Screws: 2.5 mils of computer-controlled powder coating provides long-lasting color retention and UV resistance so the finish will not chalk or fade.
• KS V-Neck Head Design: The hex washer head with V-neck adds strength to reduce the chance of head twist off when driving at high torque.
• EPDM Rubber Washer: A vulcanized EPDM rubber washer bonded to a G-90 steel backing ensures reliable sealing and helps prevent leaks even when the screw is angled.
• KS Lo-Root Thread Design: The thread transitions from fine to coarse with a low-root profile to improve pullout strength compared with standard thread forms.
• Micro-Bit Point Design: The point consistently penetrates metal panels so you do not need to pre-punch the metal, speeding installation.

Who It's For

The Kwikseal Woodbinder is aimed at professional roofers, metal siding installers and experienced DIYers who fasten metal panels to wood decks and purlins and want a fastener that seals and resists head failure under torque. It is particularly useful where aesthetics and weather resistance matter, since the powder coating and integrated EPDM washer provide both a finished look and protection against leaks.

Those who should look elsewhere include users who need self-tapping screws for metal-to-metal work or very long embedment lengths into heavy timber; this product is specified as a metal-to-wood fastener in a #10 x 1-1/2 in length and is optimized for panel-to-wood applications.

Pros & Cons

Pros

• Powder coating with UV inhibitor maintains color and resists chalking over time.
• V-neck HWH head design reduces the risk of head twist during high torque driving.
• Vulcanized EPDM washer on a G-90 steel backing provides strong sealing against water intrusion.
• Micro-bit point eliminates the need to punch metal panels before driving.

Cons

• The #10 x 1-1/2 in length limits use to metal-to-wood applications and shorter panel stacks.
• Black finish options are available, but color range and exact matching depend on coating selection.

Specifications

Our Verdict

The ST Fastening Kwikseal Woodbinder screws are a solid choice for anyone fastening metal panels to wood who needs a reliable weatherproof seal and a head design that resists twist-off during driving. Given the coated finish, EPDM sealing washer and useful thread profile, they offer good functionality and value for typical roofing and siding installs.

Frequently Asked Questions

Are these screws suitable for metal-to-wood roof installations?
Yes, they are designed specifically for metal-to-wood fastening with an EPDM washer for sealing and a micro-bit point for penetrating metal panels.

Will the coating fade or chalk in sunlight?
The 2.5 mil powder coating includes a UV inhibitor and is computer controlled to resist chalking and fading over time.

Do these screws require pre-drilling the metal panel?
No, the micro-bit point is intended to consistently penetrate metal panels without the need to pre-punch.