Description

Monster Overview:
Ideal for steel decking, trailer flooring, truck beds, and thick plywood sub-floors, these 5/16″-18 6-Lobe (Torx) Flat Head Floor-Board Screws feature a Type F fluted point taps mating threads in a pre-drilled or punched hole—no nut required; chips clear through the flute.
A low-glare, RoHS-compliant black-phosphate conversion coat partners with a factory wax/oil film to deliver consistently low drive torque and added corrosion resistance. Shipped in bulk master cartons to keep your per-piece cost monster-low.
Monster Features:
- Type F Point: Machine-screw threads with fluted cutting slot—perfect for 0.060-0.200″ steel or hardwood planks.
- Drive: Torx® T40 6-lobe recess—high torque transfer with virtually zero cam-out.
- Floor-Board Flat Head: 82° countersunk profile seats flush; under-head nibs bite for a clean, level set-down.
- Finish: Black-phosphate + light oil (RoHS) with factory dry-wax for repeatable clamp load.
- Bulk Packaging: Sealed master cartons—perfect for OEM fabricators, trailer builders, and fleet maintenance shops.
Monster Specifications:
- Diameter / Thread: 5/16″-18 UNC, Type F cutting point
- Head Style: Flat countersunk 82° with floor-board nibs
- Drive Size: Torx T40
- Material: Heat-treated carbon steel
- Finish: Black-phosphate + oil/wax (RoHS compliant)
- Cross-Reference: SAE J476 Type F / IFI 136
More Monster Bolts:
• Need other Type F or Type 1/23/25 thread-cutting screws?
• Looking for PT / Plastite thread-formers?
Explore our full inch-series lineup.
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.