Description
Monster Overview
#12-24 Slotted Hex-Washer Thread-Cutting Screws combine bolt-level clamping with the corrosion protection of 18-8 stainless steel—perfect for marine panels, food-equipment frames, HVAC cabinets, trailer skins and dense hardwood-to-steel builds. The indented hex head with integral washer spreads load and covers oversize holes, while a broad flat-blade slot offers a back-up drive when a socket won’t fit. Each screw is passivated for maximum rust resistance and coated with a factory dry-wax film for smooth, repeatable seating torque. A Type F fluted point taps clean internal threads in a pre-drilled or punched hole; chips exit through the flute—no backing nut, no chip clean-up.
Monster Features
- Dual-Drive Head: Indented #12 hex (5/16″ wrench) plus wide slot—drive with socket, impact gun or large flat driver.
- Integrated Washer: Enlarged bearing surface resists pull-through and helps seal joints in thin sheet.
- Type F Cutting Point: UNC machine thread with fluted slot—forms threads in 0.060–0.200″ steel plate or dense hardwood; chips exit cleanly.
- 18-8 Stainless: Non-magnetic, corrosion-resistant alloy ideal for outdoor, food-service and marine applications.
- Finish & Lube: Passivated surface + factory dry-wax (silicone-free) for consistent clamp load & galling resistance.
- Bulk Packaging: Factory-sealed master cartons—ready for OEM stainless fabrication and field service kits.
Monster Specifications
- Diameter / Thread: #12-24 UNC — Type F cutting point (fully threaded)
- Head Style: Slotted indented hex-washer (5/16″ wrench)
- Drive Methods: External hex • flat-blade screwdriver
- Material: 18-8 stainless steel, passivated
- Lubricant: Factory dry-wax film
- Standards: SAE J476 Type F • IFI 136
More Monster Bolts
• Explore the
full Type F thread-cutting collection
• Need thread-formers? Check our
PT / Plastite lineup
Order Yours Today & Feel the Monster Difference!
Every bulk carton ships quickly from our U.S. warehouse and is backed by the Monster Bolts quality guarantee and responsive support.