Description
Monster Overview:
Machined from 18-8 (304) stainless steel, these 5/16″-18 Phillips Flat-Head Thread-Cutting Screws offer carbon-steel strength with full corrosion resistance—ideal for marine decks, food-grade builds, outdoor steel framing and hardwood-to-steel joints. The 82° countersunk head seats flush, while a factory dry-wax lubricant keeps drive torque low and repeatable. 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, job-site friendly.
- Type F Cutting Point: UNC thread with fluted slot—forms threads in 0.060–0.200″ steel plate or dense hardwood; chip ejection built in.
- Material Advantage: 18-8 stainless is non-magnetic (annealed), food-safe and resists coastal & chemical corrosion.
- Finish / Lube: Passivated surface + factory dry-wax (silicone-free) for consistent clamp load.
- Bulk Packaging: Sealed master cartons—ideal for dock builders, trailer shops & stainless fabrication lines.
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: 18-8 (304) stainless steel — passivated
- Lubricant: Factory dry-wax film
- Standards: SAE J476 Type F / IFI 136
More Monster Bolts:
• Browse the complete
Type F thread-cutting lineup
• Need thread-formers? Visit 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.