Description
Monster Overview:
These 5/16″-18 Phillips Flat-Head Thread-Cutting Screws pair bolt-level strength with flush, snag-free seating—ideal for trailer decks, dock boards, steel flooring and hardwood-to-steel assemblies. Heat-treated carbon steel receives a brilliant bright-zinc electro-plate, is hydrogen-relief baked to eliminate embrittlement, and finished with a factory dry-wax film for reliably low drive torque. The Type F fluted point taps clean internal threads in a pre-drilled or punched hole; chips clear through the flute—no nut required.
Monster Features:
- Flush Seating & Drive: 82° flat countersunk head with Phillips #3 recess—high torque without cam-out.
- Type F Cutting Point: UNC machine thread with fluted slot—forms threads in 0.060–0.200″ steel plate or dense hardwood; chips exit cleanly.
- Bright-Zinc Finish: RoHS-compliant plating, hydrogen-relief baked, topped with factory dry-wax for consistent clamp load.
- Material: Heat-treated carbon steel delivers exceptional tensile and shear strength.
- Bulk Packaging: Sealed master cartons—perfect for OEM fabrication, dock builders & trailer shops.
Monster Specifications:
- Diameter / Thread: 5/16″-18 UNC — Type F cutting point (fully threaded)
- Head Style: 82° flat countersunk, Phillips drive
- Drive Size: Phillips #3
- 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:
• Explore the full inch-series Type F lineup
• Need thread-formers? See the PT / Plastite collection
Order Yours Today & Feel the Monster Bolts Difference!
Every bulk carton ships quickly from our U.S. warehouse and is backed by Monster Bolts’ quality guarantee and responsive support.