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SKU: 12N450DIR1S-GN26

ST Fastening #12 X 4-1/2" InsulDrill Metal Roofing Screw - Forest Green, Pkg 100

ST Fastening #12 X 4-1/2" InsulDrill Metal Roofing Screw - Forest Green, Pkg 100!

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SKU: 12N450DIR1S-GN26

ST Fastening #12 X 4-1/2" InsulDrill Metal Roofing Screw - Forest Green, Pkg 100

$132.00
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Ships Jun 25 when you order now

Lengths:

3-3/4" 4-1/2" 5" 6" 8"

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Specifications

Diameter: #12
Length: 4-1/2"
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: Forest Green
Type: Metal-To-Wood
Manufacturer Name: ST Fastening
Quantity: 100 Screws
Description

ST Fastening #12 x 4-1/2" InsulDrill Metal Roofing Screw - Forest Green, Pkg 100

This #12 x 4-1/2" InsulDrill Metal Roofing Screw is engineered for fastening insulated panels in demanding exterior environments. The Forest Green finish offers a coordinated appearance for matching metal roofing systems while providing corrosion resistance. Supplied in a 100-count box, it supports efficient installation on large roofing jobs.

Note: Always select fastener length appropriate for panel thickness and wood embedment requirements.

Forest Green 4-1/2" Self-Drilling Screw for Metal Roofing

Designed to attach steel panels and insulation to wood framing, this extended-length screw combines secure holding strength with weather-resistant performance. The bonded washer assembly helps maintain a tight seal at each fastening point.

Key Features

  • Extended 4-1/2" Length: Suitable for insulated metal roof assemblies.
  • Color-Matched Forest Green Head: Provides a clean, professional finish.
  • Bonded Sealing Washer: Supports leak resistance in outdoor conditions.
  • Self-Drilling Point: Streamlines installation through metal panels.

Common Applications

  • Agricultural Buildings: Fastens roofing panels on barns and storage structures.
  • Residential Metal Roofs: Secures insulated panel systems.
  • Post-Frame Construction: Attaches steel roofing to wood purlins.
  • Metal Wall Panels: Suitable for exterior siding applications.
  • Roof Replacement Projects: Matches existing green roofing materials.

Installation Tips

  • Maintain Perpendicular Angle: Install straight for proper washer compression.
  • Avoid Over-Tightening: Stop once washer is evenly compressed.
  • Check Support Alignment: Ensure screw engages solid wood framing.

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.