Description
Monster Overview:
Build it once—build it to last—with 1/4-20 Phillips Flat Undercut Head Thread-Cutting Screws, Type 23, 18-8 Stainless Steel from Monster Bolts. The undercut 82 ° head preserves thread engagement in thin sheet, while the Type 23 triangular chip-relief pocket clears swarf as it cuts—reducing drive torque and producing crisp internal threads in stainless panels, aluminum, or mild steel.
Crafted from corrosion-resistant 18-8 (A2) stainless, these screws offer long-term durability indoors or out—no coating to chip, flake, or contaminate food-grade environments.
Monster Features:
- Undercut Flat Head: Shallow countersink maximizes holding power in thin or brittle substrates.
- Type 23 Cutting Point: Triangular chip pocket ejects shavings for smoother cutting and lower drive torque.
- Phillips Drive: #3 Phillips recess delivers secure, cam-out-resistant installation.
- 18-8 Stainless: Non-magnetic, rust-resistant alloy—ideal for marine, food, and outdoor applications.
- Monster Quality: Tight tolerances, batch inspection, and fast U.S. shipping.
Monster Specifications
| Feature | Details |
|---|---|
| Diameter / Thread | 1/4-20 UNC |
| Length | Fully threaded — select length above |
| Head / Drive | Phillips Flat Undercut — #3 Phillips |
| Point Style | Type 23 (triangular chip-relief cut-out) |
| Material | 18-8 Stainless Steel (A2) |
| Finish | Passivated Stainless — no coating |
| System of Measurement | US / Inch |
| Standards | ASME B18.6.4 & IFI-111 |
More Monster Bolts:
Need complementary hardware?
• Bulk US-inch Nuts
• Bulk US-inch Washers
Order Yours Today and Experience the Monster Bolts Difference!
Buy with confidence—every Monster Bolts purchase is backed by our commitment to quality, fast shipping, and customer satisfaction.