ST Fastening #12 X 1" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex-Washer Head - Koko Brown, Qty. 250
ST Fastening #12 X 1" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex-Washer Head - Koko Brown, Qty. 250!
ST Fastening #12 X 1" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex-Washer Head - Koko Brown, Qty. 250
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Specifications
ST Fastening #12 x 1" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex-Washer Head - Koko Brown, Qty. 250
This ST Fastening #12 x 1" Maxx Steelbinder screw is built for secure metal panel attachment to steel structures. The Koko Brown head finish delivers a deep, rich color match for darker brown roofing systems, while the self-drilling design simplifies installation. Supplied 250 per box for dependable jobsite coverage.
Note: Verify proper panel gauge and steel thickness before installation.
Koko Brown 1" Hex Washer Head Self-Drilling Roofing Screw
Designed for steel-to-steel applications, this screw combines strong clamping force with a bonded washer system to help protect against leaks in exterior environments.
Key Features
- Precision Drill Tip: Eliminates pilot holes when fastening to steel.
- EPDM Sealing Washer: Helps create a weather-resistant seal.
- Koko Brown Finish: Coordinates with deep brown panel systems.
- #12 Diameter: Provides reliable holding strength in steel framing.
Common Applications
- Metal Roofing Panels: Attaches exposed fastener systems to steel supports.
- Industrial Buildings: Suitable for steel-framed construction.
- Carports and Garages: Secures roofing panels to metal framing.
- Agricultural Structures: Ideal for barns and storage units.
- Metal Wall Systems: Fastens siding panels to steel frames.
Installation Tips
- Maintain Straight Alignment: Install perpendicular for proper washer compression.
- Use Correct Driver Size: Ensure secure hex engagement.
- Avoid Over-Torque: Compress washer firmly without distorting it.
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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ST Fastening #12 X 1" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex-Washer Head - Koko Brown, Qty. 250
I inadvertently ordered 100 self-tapping screws which ended up being too short and the company handled my return with much kindness and patience especially considering that I can be a lil ditzy sometimes!
Fast shipping, perfect match to my steel panels.
Maxx Steelbinder self drilling screws are heavy duty and drill well through 24g roof panels and 11g purlins. Price is great compared to Teks and quality is the same or better.