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- Thread Forming & Cutting Screws
Product Description

Star Drive Flat Head Type F Thread Cutting Floorboard Screws Black Phosphate & Oil Finish
- High resistances to torque, shear, and tension when applied
- Features a machine screw style thread with a Type F thread cutting point
- Blunt tapered point with multi-cutting edges and chip cavities for heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic
- Star drive style to designed to reduce the chance of slip out and stripping during installation
- A thread cutting screw cuts its own threads into an existing hole
Thread Cutting screws feature a thread cutting tip which makes threads in existing or pre-drilled holes. They provide a tight fit and high resistances to torque, shear, and tension when applied. Generally used for making threads in metal and wood, thread cutting screws do not generate the same stress as thread forming screws.
Thread forming screws "push" the material they have been applied to so as to reduce the chipping on the applied material, though this comes at the cost of putting more stress on the thread forming fastener. Thread cutting screws cut into and remove chips from the applied material as the fastener creates the thread, providing a more secure fit.
Product Specifications:
- Fastener Type: Thread Cutting Screw
- Material: C1022 Steel
- Finish: Black Phosphate & Oil
- Head Style: Flat
- Countersink: 82 Degrees
- Head Diameter: Max 0.507 - Min 0.452
- Drive Style: Torx / Star
- Drive Size: T-30
- Thread Size: 1/4"-20
- Thread Diameter: 1/4" (0.250 Major, 0.2408 Minor)
- Thread Pitch: 20 per Inch
- Thread Type: Coarse (UNC)
- Point Type: F
Torx Star Drive Flat Head Type F Thread Cutting Screws
Black Phosphate & Oil Finish
Torx Star Drive Thread Cutting Trailer Floorboard Screws in this selection are made of C1022 Steel with a black phosphate and oil finish for corrosion resistance and durability, making these screws designed to last.
Star Drive Flat Head
Thread cutting screws in this selection feature a countersunk flat head that runs flush with the installation surface when properly installed. The Torx 6 Lobe drive style (commonly referred to as a "star" drive") features six points of contact, allowing for a higher torque installation and resists cam out and screw stripping.
Type F Point
Thread cutting screws in this selection feature machine screw threads with a Type F thread cutting point to form its own threads in a pre-existing hole. The Type F point is blunt and tapered, and features multi cutting edges and chip cavities, making it suitable for use with heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic.
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