5-40 Socket Set Screws - Cup Point
#5-40 Socket Set Screws - Cup Point
#5-40 socket set screws with a cup point, in USS coarse (UNC) thread, made from heat treated alloy steel (ASTM F912) with a black oxide finish. We stock 1/8", 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8", 1" lengths. They take a 1/16" hex key.
Specifications
- Size: #5-40 (USS coarse)
- Lengths: 1/8", 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8", 1"
- Hex key: 1/16"
- Tap drill: #38
- Point: cup
- Material: alloy steel, Rockwell C45-53
- Finish: black oxide
Common Uses
- Pulleys and collars
- Gears and knobs
- Couplings
FAQ
What hex key fits a #5-40 set screw?
A 1/16" hex key (Allen wrench).
What does a cup point set screw do?
The cupped end digs into the shaft as it is tightened, holding a collar, pulley, gear or knob in place. For the best hold, tighten against a flat ground on the shaft. Cup point set screws are the most common style.
Related: Stainless Socket Set Screws | Hex Keys | All Socket Set Screws USS Coarse
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