Description
Monster Overview:
Drive, lock, and seal in one motion with 1/4-20 Serrated Slotted Hex-Washer Taptite Alternative Screws from Monster Bolts. Their tri-lobular thread-rolling point forms precise internal threads as it drives, eliminating chips and tap breakage. The indented hex washer head delivers high installation torque with a wrench, while the straight slot offers screwdriver back-up and the serrated flange bites tight against vibration.
Each case-hardened steel fastener is finished with CR+3 clear-zinc plating, bake-relieved to prevent hydrogen embrittlement, and top-coated with a dry-film wax that reduces installation torque and provides a second barrier against corrosion. Fully RoHS compliant, they ship quickly from our Florida warehouse with industry-leading support.
Monster Features:
- Self-Threading Power: Taptite-style tri-lobular point taps its own threads—no pre-tapping, no chips.
- Serrated Lock-Washer Head: Integral under-head serrations lock against loosening in high-vibration joints.
- Dual-Drive Convenience: 3/8″ external hex for socket or wrench plus straight slot for screwdriver assist.
- Zinc Bake + Wax: CR+3 clear zinc with bake relief and dry-film wax lowers friction and fights corrosion.
- Full Thread (Tap-Bolt): Every stocked length is fully threaded for maximum grip depth.
Monster Specifications:
| Attribute | Value |
|---|---|
| Diameter / Thread | 1/4-20 UNC |
| Available Lengths | Fully threaded — select length above |
| Head / Drive | Slotted Indented Hex Washer, 3/8″ external hex + slot |
| Washer Feature | Integral serrated under-head flange |
| Point Style | Taptite Alternative tri-lobular thread-rolling |
| Material | Case-hardened steel |
| Finish | CR+3 zinc plating, bake-relieved, dry-film wax |
| Compliance | RoHS compliant |
| Standards | Meets ASME B18.6.3 / SAE J1237 performance |
More Monster Bolts:
Need matching lock washers & hex nuts? Available here for a complete solution.
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