5/16"-18 Star Drive Flat Head Thread Cutting Screws - Black Phosphate and Oil Finish - Type F Point
Diameter - Thread Pitch: 5/16"-18
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
- Provide a tight fit
- 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
Sizes Listed As:
Diameter - Thread Pitch x Length from Top of Head
See Product Specifications
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Product Specifications
Corrosion Resistant
Yes
Drive Style
Star
Finish
Black Phosphate & Oil
Grade
C1022
Head Diameter
Max 0.597 - Min 0.556
Head Style
Flat
Material
Steel
Point Type
F
System of Measurement (Unit)
Inch
Thread Diameter
(5/16") Max 0.3152 - Min 0.3065
Thread Direction
Right Hand
Thread Pitch (Count)
18 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Torx Drive
T40
