Bulk 5/16-18 Serrated Slotted Hex Washer Taptite Alternative Thread-Rolling Screws – Zinc Bake + Wax – Monster Bolts

Monster Overview:

Drive, lock, and seal in one motion with 5/16-18 × ¾″ 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 combines wrench-on torque with a slotted recess for flat-blade drivers, while the serrated under-head flange grips 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 lowers installation torque and adds an extra 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: ½″ 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 resists corrosion.
• Single Size: ¾″ overall length—fully threaded for maximum grip depth in thicker panels.

Monster Specifications:

More Monster Bolts:

Need matching lock washers & nuts? Available here for a complete solution.

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