Description
Monster Overview:
Need full thread grip yet a perfectly flush head in ultra-thin sheet-metal or shallow countersinks? Our #4-40 Phillips Flat-Undercut Thread-Cutting Screws trim away most of the 82° cone, giving you maximum thread engagement without head rise. Heat-treated carbon steel wears a durable black-oxide conversion coat, oil-sealed and factory dry-waxed for ultra-low drive torque. The Type F fluted point taps clean female threads in a pre-drilled or punched hole; chips clear through the flute—no nut required.
Monster Features:
- Undercut Head: Shallow 82° countersink keeps heads flush in sheet as thin as 0.040″ while preserving full thread length.
- Flush Seating & Drive: Phillips #0 recess—precision-driver ready, minimal cam-out.
- Type F Cutting Point: UNF machine thread with fluted slot—forms threads in 0.020–0.050″ steel sheet or dense hardwood; chips exit cleanly.
- Finish: Black-oxide (oil-sealed) plus factory dry-wax for smooth installation and indoor corrosion resistance.
- Material: Heat-treated carbon steel delivers high tensile & shear strength for miniature sizes.
- Bulk Packaging: Sealed master cartons—ideal for electronics OEMs, model-makers & precision fabrication where thin sheet meets flush fit.
Monster Specifications:
- Diameter / Thread: #4-40 UNF — Type F cutting point (fully threaded)
- Lengths Offered: ¼″ (0.250 in.) & 5⁄16″ (0.312 in.) — fully threaded
- Head Style: 82° flat-undercut countersunk, Phillips drive
- Drive Size: Phillips #0
- Material: Heat-treated carbon steel
- Finish & Lube: Black-oxide (oil-sealed) with factory dry-wax film
- Standards: SAE J476 Type F / IFI 136
More Monster Bolts:
• Browse the full 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 the Monster Bolts quality guarantee and responsive support.