Description
Monster Overview:
Perfect low-profile, rust-proof assemblies with #4-40 Phillips Flat Undercut Head Thread-Cutting Screws, Type 23, 18-8 Stainless from Monster Bolts. The undercut 82° head keeps more threads engaged in thin sheet, while the Type 23 triangular chip-relief pocket ejects swarf as it cuts—lowering drive torque and leaving clean internal threads in stainless panels, aluminum, and plastics.
Precision-machined from 18-8 (A2) stainless, these screws deliver enduring corrosion resistance with no plating to chip or peel—ideal for marine hardware, electronics housings, and food-grade equipment. Each screw is fully threaded; simply choose your required length above.
Monster Features:
- Undercut Flat Head: Shallow countersink maximizes hold in thin or brittle substrates.
- Type 23 Cutting Point: Large triangular chip pocket clears shavings for smoother cutting and lower drive torque.
- Phillips Drive: #1 Phillips recess offers precise, cam-out-resistant engagement.
- 18-8 Stainless Steel: Non-magnetic, food-safe rust resistance—no additional coating required.
- Monster Quality: Tight tolerances, batch inspection, and fast U.S. shipping.
Monster Specifications
| Feature | Details |
|---|---|
| Diameter / Thread | #4-40 UNC |
| Length | Fully threaded — select length above |
| Head / Drive | Phillips Flat Undercut — #1 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
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