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Your cart is empty.Knurled head screws are common in applications requiring frequent fastening and unfastening. The diamond knurled surface on these thumb screws provides optimal gripping allowing the screw to be tightened and loosened by hand pressure alone eliminating the need for tools. Made from 303 stainless steel (SS) which is a strong, corrosion-resistant alloy with excellent resistance to heat. 303 stainless steel s designed to be used in high-stress, outdoor and corrosive applications. These SAE screws are available in the following thread sizes: 6-32, 8-32, 10-32, 1/4-20, 5/16-18 and 3/8-16. All screws have right-hand threads. All screws are uncoated. All screws have shoulders and flat tips. These screws will prove to be useful in a wide variety of industries, environments and applications. Specifications: 1/4-20 threads, Head diameter: .750 inches, Head height: .3125 inches, Shoulder diameter: .500 inches, Shoulder height: .1875 inches, Thread length: .750 inches.
Douglasdzaster
July 14, 2025
I haven’t got to use them yet. I’m rebuilding my jon boat and haven’t gotten to that phase. I check everything out I order though and these are good quality and are going to do exactly what I need them to. If for some reason they even start to corrode you can bet I’ll be updating my review.
Matt-from-AL
May 26, 2025
Well made and have a nice heft to them.
Mark Roberts
May 16, 2025
Good quality, not cheap looking
todd o.
May 14, 2025
worked as described
TurboDog
April 30, 2025
Works as expected
MJT
April 6, 2025
These very high quality thumb screws were exactly what I was looking for to finish my project. They are well made and look great.
Willy T from Nashville TN
March 11, 2025
Installed on Harleys Indians etc.Ordered 10 and had to order some more.Seem like my biker buddies needed one too.CoolSincerelyWillyTNash from Nashville TN
J. A. Newcomer
December 10, 2024
I used these along with some 1/4" riv-nuts to replace the plastic retaining pins that hold the plastic trim on my UTV that covers the transmission dipstick. These allow me to easily remove the trim piece without any tools to be able to check fluids or make repairs. The machining seems good and they should last as long as I don't lose them!
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