5/16"-18 Star Drive Flat Head Thread Cutting Screws - Black Phosphate and Oil Finish - Type F Point

• Provide a tight fit
• A thread cutting screw cuts its own threads into an existing hole
• High resistances to torque, shear, and tension when applied
• Feature a machine screw style thread
• Blunt tapered point with multi-cutting edges and chip cavities
• Star drive style to designed to reduce the chance of slip out during proper installation
• Minimizes the chance to stripping

5/16"-18 Thread Cutting screws feature a thread cutting tip which makes threads in existing or pre-drilled holes.

Drill Bit Sizes for Thread Cutting Screws

Sizes Listed As:
Diameter - Thread Pitch x Length from Top of Head