ST Fastening #12 x 1-1/4 in Maxx Steelbinder Roofing Screws - Brown

Our review of the ST Fastening #12 x 1-1/4 in Maxx Steelbinder roofing screws finds them best suited to contractors and DIYers who need a reliable, coated fastener for metal roof and sidewall panels. The single biggest reason to buy is the combination of a self drilling tip that penetrates up to 0.210 in steel and a 2.5 mil powder coat finish that resists fading, which together deliver long-lasting attachment and appearance on pre-engineered metal buildings.

Key Features

• Self drilling: The point is designed to drill through metal panels and underlying steel up to 0.210 in thick, reducing the need for pre-drilling and saving installation time.
• Powder coated finish: A durable 2.5 mil powder coat with UV inhibitor helps prevent chalking and fading, keeping fastener heads matching panel colors longer.
• EPDM rubber washer: The cupped head encapsulates an EPDM washer that provides a secure weather seal even when the screw is driven at a slight angle.
• Deep penetration: The screw geometry minimizes point walking, allowing consistent penetration into thicker base metal without wandering.
• Color match options: Available in common metal panel paint colors to maintain a uniform appearance on roofs and sidewalls.

Who It's For

These screws are aimed at builders, roofers, and homeowners installing metal roofing or siding on pole barns, agricultural buildings, and pre-engineered metal structures who want fast, sealed attachments without constant touch-up of fastener heads.

Those who need a specialty fastener for very thin gauge trimming, non-metal substrates, or who require perfect drilling every time for critical structural applications should verify fit or consider purpose-built alternatives, since some customers reported a small percentage that did not drill properly on first use.

Pros & Cons

Pros

• Durable powder coating reduces chalking and color fade on exposed panels.
• Self drilling tip penetrates up to 0.210 in steel for secure attachment without pre-drilling.
• EPDM washer creates a reliable weather seal even when screws are not perfectly perpendicular.
• Color-matched heads improve finished appearance on metal panels.

Cons

• A minority of screws may fail to drill cleanly on first try, so checking bits and pilot technique is recommended.
• Limited to applications where a #12 x 1-1/4 in length is appropriate; longer penetrations require a different length.

Specifications

Brand	ST Fastening
Model	Maxx Steelbinder #12 x 1-1/4 in
Quantity	Pack of 250
Coating	2.5 mil powder coat with UV inhibitor
Washer	EPDM rubber cupped head washer
Drilling capacity	Penetrates steel up to 0.210 in
Color	Brown (color matched option)

Our Verdict

The ST Fastening Maxx Steelbinder #12 x 1-1/4 in screws are a practical choice for metal roofing and siding work where a weather-tight, color-matched finish is needed. They offer good value for builders who want a coated, self drilling fastener with an EPDM seal; just inspect a few from the pack during installation to confirm drilling performance on your specific panels.

Frequently Asked Questions

Can these screws drill through thick roof panels?
Yes, they are designed to self drill and penetrate steel up to 0.210 in in thickness without point walking.

Will the finish fade over time?
The 2.5 mil powder coat includes a UV inhibitor to reduce chalking and fading compared to uncoated fasteners.

Do the screws seal well if driven at an angle?
The cupped head with EPDM rubber washer is intended to encapsulate and maintain a secure seal even when the screw is not perfectly perpendicular.