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Knox Trailers · Hardware & Fasteners
5/16-18X1
In stock · ships from Knoxville
This is a 5/16-18 x 1 inch Torx pan head screw with a Type F thread-cutting point.
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Verified fitment for 2 applications
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This is a standard hardware fastener used across many trailer brands, not specific to a single make or model. Always verify hole size and material thickness before installation.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
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It cuts its own threads when driven into a pre-drilled hole in metal or hardwood, so you don’t need a nut or a pre-tapped hole. These are widely used to fasten trailer floor boards to the steel crossmembers on flatbed and utility trailers, and they are replaced when boards get loose or during floor rebuilds.
Part Number: 5/16-18X1
SCREW, PAN TORX TYPE F
Unit: ea
Dealer: Knox Trailers
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