Description
Monster Overview
Built for truck frames, dock plates, heavy-gauge steel assemblies and hardwood-to-steel builds, these 3/8″-16 Slotted Serrated Hex-Washer Thread-Cutting Screws combine bolt-strength clamp force, mild vibration resistance and a built-in washer—all in one fastener. Heat-treated carbon steel carries a brilliant bright-zinc finish, is hydrogen-relief baked to IFI spec, and factory dry-waxed for smooth, repeatable seating torque.
Monster Features
- Serrated Flange: Teeth under the washer bite into the mating surface for mild vibration resistance; the flange spreads load so you can skip a separate washer.
- Dual-Drive Convenience: Indented 3/8″ hex head (9/16″ wrench) plus wide slot—install with a socket, impact gun or flat driver.
- Type F Cutting Point: UNC machine thread with fluted slot—forms threads in 0.090–0.250″ steel plate or dense hardwood; chips exit cleanly.
- Bright-Zinc Finish: RoHS-compliant plating, hydrogen-relief baked, factory dry-waxed for consistent clamp load and corrosion protection.
- Material: Heat-treated carbon steel delivers outstanding tensile & shear strength for structural work.
- Bulk Packaging: Factory-sealed master cartons—ideal for trailer builders, dock manufacturers & structural-steel shops.
Monster Specifications
- Diameter / Thread: 3/8″-16 UNC — Type F cutting point (fully threaded)
- Head Style: Slotted, serrated indented hex-washer (9/16″ wrench)
- Drive Methods: External hex • flat-blade screwdriver
- Material: Heat-treated carbon steel
- Finish & Lube: Bright-zinc plated, hydrogen-relief baked & factory dry-waxed
- Standards: SAE J476 Type F • IFI 136
More Monster Bolts
• Browse the full Type F thread-cutting collection
• Need thread-formers? Check our PT / Plastite lineup
Order Yours Today & Feel the Monster Difference!
Every bulk carton ships fast from our U.S. warehouse and is backed by the Monster Bolts quality guarantee and responsive support.