Description
Monster Overview:
These 3/8″-16 Slotted Hex-Washer Thread-Cutting Screws deliver bolt-strength clamping in a single, self-tapping part—ideal for truck beds, trailer frames, dock plates, heavy-gauge steel assemblies and hardwood-to-steel joins. The indented hex head with integral washer spreads load and seals oversized holes, while the deep flat-blade slot gives a back-up drive for tight spots. Heat-treated carbon steel sports a bright, RoHS-compliant zinc finish, is hydrogen-relief baked to IFI specs, and factory dry-waxed for smooth, repeatable seating torque. The Type F fluted point taps clean internal threads in a pre-drilled or punched hole; chips exit through the flute—no washer, nut or weld required.
Monster Features:
- Dual-Drive Convenience: Indented 3/8″ hex head (9/16″ wrench) plus broad slotted recess—socket, impact gun or large flat driver.
- Washer Head Advantage: Formed washer increases bearing area, resists pull-through and helps seal the joint.
- 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: Corrosion-resistant plating, hydrogen-relief baked, factory dry-waxed for consistent clamp load.
- Material: Heat-treated carbon steel for outstanding tensile & shear strength.
- Bulk Packaging: Sealed master cartons—ideal for trailer manufacturers, dock builders & heavy-steel fabricators.
Monster Specifications:
- Diameter / Thread: 3/8″-16 UNC — Type F cutting point (fully threaded)
- Head Style: Slotted 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 complete Type F thread-cutting lineup
• Need thread-formers? Check our PT / Plastite collection
Order Yours Today & Feel the Monster Bolts Difference!
Every bulk carton ships fast from our U.S. warehouse and is backed by Monster Bolts’ quality guarantee and responsive support.