Bulk 3/8"-16 Slot Indented Hex Washer *Serrated* Thread Cutting Screw Type 23 – Full Thread Zinc-Bake

Monster Overview:

Lock down structural sheet with our 3/8-16 Slot-Indented Serrated Hex-Washer Head Thread-Cutting Screws, Type 23, Bright Zinc-Bake. A built-in serrated flange bites firmly into the mating surface for vibration-proof clamping, while the dual-drive head pairs a hefty 9/16″ across-flats hex with a full-width slot—drive it the way your job site demands. The Type 23 triangular chip-relief pocket clears swarf as it taps, reducing torque and leaving clean internal threads in structural steel, channel, or aluminum framing.

Bright zinc plating followed by a hydrogen-relief bake provides reliable corrosion protection that meets RoHS guidelines. Screws are fully threaded along the entire shank—just pick your length from the drop-down above.

Monster Features:

• Dual-Drive Head: 9/16″ A/F hex and straight slot for maximum installation flexibility.
• Serrated Flange: Integrated locking teeth resist loosening under impact and vibration.
• Type 23 Cutting Point: Large triangular chip pocket ejects debris for smoother cutting & lower drive torque.
• Bright Zinc-Bake Finish: Shiny zinc layer plus post-plate bake mitigates hydrogen embrittlement—fully RoHS compliant.
• Monster Quality: Tight tolerances, batch inspection, and fast U.S. shipping from our Florida warehouse.

Monster Specifications

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, rapid shipping, and customer satisfaction.