Thumb Screw 1/4"-20 x 1/2" Spade Head - Zinc Plated

Marsoni

M251S

$126.11

Get it in 3 business days with 1 day shipping. Friday, May 29

Thumb Screw 1/4"-20 x 1/2" Spade Head - Zinc PlatedProduct Details : Thumb Screw 1 4" 20 x 1 2" Spade Head Zinc Plated Product Type: Thumb Screw Thumb Screw Head Shape: Spade Thread Size: 1 4" 20 Bolt Diameter Size: 1 4" Thread Count (Pitch TPI): 20 Length: 1 2" Thread: Full thread Thread Type: Coarse Imperial Thread Fit: Class 2A Thread Direction: Right Hand Thread Material(s): Zinc Plated Tensile Strength: 40,000 psi For any information about products, please contact us. *Photos for reference

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I haven't had a flat tire yet, so I also haven't had occasion to test these but they seem like great value for an extremely low price (especially versus a new tire.) I have handled them to try and gauge how quickly they'd smooth a hole, and they're rough / sharp and aggressive enough that I expect them to work quickly and well on not only tires, but on a variety of other materials. This pattern in particular should allow material to be shed and then passed backward pretty easily without clogging things up or slowing them down. If you've bothered to buy a patch kit for your tires, you really ought to have one of these around.

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Reviewed in the United States on January 18, 2026

Verified Purchase

Don

Birmingham, US

★★★★★ 5

Thank you!

Size: 1/4-Inch - With Adapter

Thank you!

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Reviewed in the United States on April 27, 2023

Verified Purchase

Ken C.

New York, US

★★★★★ 5

Makes plugging easy

Size: 1/4-Inch - With Adapter

Screw that T handle punch tool!!

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Reviewed in the United States on April 4, 2021

Verified Purchase

B Rukaz

Lexington, US

★★★★★ 5

as advertised

As advertised

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Reviewed in the United States on June 2, 2026

Verified Purchase

Drewski

Alexandria, US

★★★★★ 5

Great value, easy to use, and do a great job.

Great for tire repair! It fits in any drill in a snap, so you are able to ream the hole out in a tire so you can patch and repair the tire. My shop used these all the time, and never had any issues with them. They hold up well, and do the trick for just about any size hole in a tire. Great buy!

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Reviewed in the United States on January 27, 2026