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SKU: 12N375DIR1S-BK01

ST Fastening #12 X 3-3/4" InsulDrill Metal Roofing Screw - Black, Pkg 100

ST Fastening #12 X 3-3/4" InsulDrill Metal Roofing Screw - Black, Pkg 100!

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SKU: 12N375DIR1S-BK01

ST Fastening #12 X 3-3/4" InsulDrill Metal Roofing Screw - Black, Pkg 100

$102.00
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Ships Jun 17 when you order now

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Specifications

Diameter: #12
Length: 3-3/4"
Washer Diameter: .400"
Drive Type: 1/4" Hex
Head Type: Hex Head
Point Type: #1 Drill Point
For Treated Lumber: Yes
Material: Carbon Steel
Finish: Black e-Coat Corrosion Resistant Coating
Color: Black
Type: Metal-To-Wood
Manufacturer Name: ST Fastening
Quantity: 100 Screws
Description

ST Fastening #12 x 3-3/4" InsulDrill Metal Roofing Screw - Black, Pkg 100

This #12 x 3-3/4" InsulDrill Metal Roofing Screw is designed for secure attachment of insulated panels in residential and post-frame construction. The Black-coated head provides a sharp, professional finish while supporting long-term corrosion resistance. Packaged in quantities of 100, it is suited for both repairs and full roof installations.

Note: Select screw length to ensure proper embedment into the wood substrate.

Black 3-3/4" Self-Drilling Screw for Metal Roofing Systems

With a self-drilling #1 drill point and bonded sealing washer, this fastener supports efficient installation and watertight performance. The black finish blends seamlessly with darker metal roofing panels.

Key Features

  • Integrated Drill Point: Cuts through metal panels and drives into wood without pre-drilling.
  • Black Protective Coating: Offers corrosion resistance and clean visual integration.
  • Bonded Washer Assembly: Designed to seal out moisture at the penetration point.
  • #12 Diameter: Provides solid holding power for panel-to-wood connections.

Common Applications

  • Standing Seam Roof Panels: Secures insulated metal panels to framing.
  • Agricultural Buildings: Suitable for barns and equipment sheds.
  • Metal Siding Installation: Attaches wall panels in exterior applications.
  • Roof Repairs: Replaces existing black roofing fasteners.
  • Post-Frame Construction: Commonly used in pole barn assemblies.

Installation Tips

  • Apply Even Pressure: Allow the drill point to penetrate without forcing.
  • Seal Properly: Tighten until the washer seats firmly against the panel.
  • Inspect Alignment: Ensure screws are centered on structural supports.

Related Items

Pair this 1/4" 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 2 reviews
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J
Jonathan
PERFECT

Perfect for a problem roof that dips and installing metal roofing these extra long roofing screws worked perfect, and color perfect.

G
George Martinez

The Customer Service Rep was great. He had all the information off the top of his head. one of my questions was (With the materials shortage (Screws) would they be able to fill the order? The CS Rep assured me that the company has tons of screws in stock and would easily fill this order. The leed time on the website was 7-10 days. I believe it was exactly the ten days. the screws arrived in a timely manner.
Thank you for the assistance and the screws.
great product, working great for our needs. We will continue to use Fasteners + Plus for specialty screws.