7/8-9 Square Head Set Screws - Cup Point

7/8-9 Square Head Set Screws - Cup Point
7/8"-9 square head set screws with a cup point, made from case hardened steel with a plain finish. We stock 2", 2-1/2", 3", 3-1/2", 4", 5", 6" lengths, fully threaded. The square head takes a 7/8" wrench.
Specifications
- Size: 7/8"-9 (USS coarse)
- Lengths: 2", 2-1/2", 3", 3-1/2", 4", 5", 6"
- Wrench: 7/8"
- Tap drill: 49/64"
- Point: cup
- Material: case hardened steel
- Finish: plain
Common Uses
- Pulleys and collars
- Equipment adjustments
FAQ
Square head or socket set screw?
A square head set screw sticks out above the part and is tightened with a wrench, so it can be tightened harder and is easy to see and adjust. A socket set screw sits flush or below the surface.
What tap drill do I use for 7/8"-9?
Use a 49/64" drill for a standard 75% thread.
Related: Socket Set Screws USS Coarse | All Square Head Set Screws
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