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Complete Bulk 3/8″-16 6-lobe (torx) Flat Head Floor-board Screws — Type F Thread-cutting, Black-phosphate Take An Extra 90% Off [ofPHiTW3]

$49.99 $159.99 -69%

Monster Overview:Built for truck beds, heavy trailer floors, structural steel decking and laminated timbers, these 3/8″-16 6-Lobe (Torx) Flat Head Floor-Board Screws incorporate a Type F fluted cutting point that taps its own internal threads in mild

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Complete Bulk 3/8″-16 6-lobe (torx) Flat Head Floor-board Screws — Type F Thread-cutting, Black-phosphate Take An Extra 90% Off [ofPHiTW3]

MonsterBolts Bulk 3/8-16 Torx Flat Type F Floor-Board Screws — Black Phosphate

Monster Overview:

Built for truck beds, heavy trailer floors, structural steel decking and laminated timbers, these 3/8″-16 6-Lobe (Torx) Flat Head Floor-Board Screws incorporate a Type F fluted cutting point that taps its own internal threads in mild steel or dense hardwood— eliminating nuts, pre-tapping and chip cleanup. A low-glare black-phosphate conversion coat meets RoHS requirements and partners with a factory wax/oil film for predictably low drive torque. Supplied in bulk master cartons to drive per-piece cost down.

Monster Features:

  • Type F Cutting Point: Machine-screw thread with fluted slot—ideal for 0.090-0.250″ steel plate or hardwood planks.
  • Drive: Torx® T45 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 consistent clamp load.
  • Bulk Packaging: Sealed master cartons—perfect for OEM fabricators, trailer manufacture and fleet maintenance.

Monster Specifications:

  • Diameter / Thread: 3/8″-16 UNC, Type F cutting point
  • Head Style: Flat countersunk 82° with floor-board nibs
  • Drive Size: Torx T45
  • 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.

What Our Customers Say

February 7, 2026

Absolutely no complaints!

An excellent tool that is very, very, very, very handy.

- Nisien G..

February 7, 2026

Absolutely no complaints!

It's a very efficient and a very, very, very clever product.

- Ysbaddaden U..

February 7, 2026

Absolutely no complaints!

This is a very sophisticated and a polished item.

- Kenton F..

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