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SKU: 12B300D3Z0ZS

ST Fastening #12 x 3" ZXL Steelbinder Self-Drilling Metal Roofing Screw - Electro-Galvanized, Pkg 250

ST Fastening #12 x 3" ZXL Steelbinder Self-Drilling Metal Roofing Screw - Electro-Galvanized, Pkg 250!

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SKU: 12B300D3Z0ZS

ST Fastening #12 x 3" ZXL Steelbinder Self-Drilling Metal Roofing Screw - Electro-Galvanized, Pkg 250

$127.99
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Specifications

Diameter: #12
Length: 3"
Washer Diameter: .630"
Drive Type: 5/16" Hex
Head Type: Cupped Washer Head
Point Type: Micro-Bit
For Treated Lumber: No
Material: Carbon Steel
Finish: ZAMAC Zinc-Aluminum Alloy
Color: Galvanized
Type: Metal-To-Metal
Manufacturer Name: ST Fastening
Quantity: 250 Screws
Description

ST Fastening #12 x 3" ZXL Steelbinder Self-Drilling Metal Roofing Screw - Electro-Galvanized, Pkg 250

For roofing systems that require maximum embedment into steel framing, this ST Fastening #12 x 3" ZXL Steelbinder screw delivers extended reach and dependable holding strength. The electro-galvanized finish enhances corrosion resistance for exterior applications, making it suitable for commercial, industrial, and agricultural projects. Each 250-count box keeps large-scale installs moving efficiently.

Note: Confirm panel assembly thickness and steel gauge compatibility before installation.

Electro-Galvanized 3" ZXL Self-Drilling Roofing Screw for Steel Structures

Engineered for exposed fastener metal roofing systems, this longer self-drilling fastener provides deep steel penetration and consistent compression at the panel surface.

Key Features

  • Extended 3" Length: Designed for thicker roof assemblies requiring deeper embedment.
  • Electro-Galvanized Coating: Supports corrosion resistance in exterior environments.
  • Self-Drilling Tip: Eliminates pre-drilling when fastening into steel.
  • ZXL Steelbinder Construction: Built for reliable steel-to-steel panel attachment.

Common Applications

  • Commercial Metal Roofing: Secures panels to structural steel framing.
  • Industrial Buildings: Suitable for warehouses and manufacturing facilities.
  • Agricultural Structures: Attaches roofing on barns and equipment storage buildings.
  • Insulated Panel Systems: Used where additional fastener length is required.
  • Roof Retrofits: Replacement fasteners for steel-framed roof systems.

Installation Tips

  • Drive at Controlled Speed: Allow the drill point to fully penetrate steel.
  • Maintain Perpendicular Alignment: Ensures proper washer seating and compression.
  • Seat Securely: Tighten until the washer is evenly compressed without over-tightening.

Related Items

Pair this 5/16" Magnetic Nutsetter with high-quality ST Fastening Screws for fast, secure, and efficient installations. Using the right nutsetter ensures a cleaner finish, reduced slippage, and improved efficiency on the job.

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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

Based on 6 reviews
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J
Jason Balanzategui
So far good paint on screws

Great product so far, just installed roof and the paint quality seems to be good, using an impact to drive them in and heads of screws still have the paint

G
Greg Mosiman
Great Metal Roofing Screws

I paid a little extra for the ZXL Steelbinder Metal Roofing Screws. They worked great for drilling into the heavy gauge steel purlin. No pre-drilling necessary. Looks like they will hold up for many years to come.

A
Amy Hohon
Roof

Worked great for a tin roof and don't have to worry bout the sun ruining the rubber:)