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Knox Trailers · Hardware & Fasteners
1/4-20X2-1/2
In stock · ships from Knoxville
This is a 1/4-20 x 2-1/2 inch flat-head Torx drive screw commonly used to fasten hardwood floorboards or scuff plates on semi-trailers.
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Commonly found across many trailer brands (Great Dane, Utility, Wabash, Hyundai, etc.). Always confirm hole diameter (7/32 inch) and thread engagement before use. Sold per each by Knox Trailers.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
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The T30 Torx drive provides excellent grip and reduces cam-out during installation, while the thread-cutting Type F tip threads into a pre-drilled 7/32 inch hole. It creates a flush surface that prevents cargo snagging and is typically replaced when floorboards become damaged or worn. Often referred to as a 'scuff screw' when used on protective scuff plates along trailer edges, but dimensionally interchangeable with standard trailer deck screws.
Part Number: 1/4-20X2-1/2
SCUFF SCREW
Unit: ea
Dealer: Knox Trailers
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