06-03-2021, 03:29 PM
Before I knew what I was – sort of – doing I purchased T-Track that used 5/16” T-bolts. I made an auxiliary table for my drill press and installed this hardware using epoxy and screws.
Since then I have made jigs and other work surfaces that incorporate 1/4” T-Track that accept standard 1/4” hex head bolts. The problem I encounter is the 1/4” hex head bolts in my clamps lock down to the 5/16” T-Trqck but spin freely until there is sufficient pressure against the bolt head. This usually requires three hands.
I needed a solution that would allow the use of the 1/4” hex bolts in both size T-Tracks.
A cross pin installed in the head of the 1/4” bolts was the answer. The cross pin prevents the bolt from spinning freely but still allows it to be used in the different size T-Tracks.
I was going to use a finishing nail as the cross pin but found a perfect alternative being the very dull HSS 5/64” twist bit I used to drill half way through the first bolt head. Switching to a Cobalt 5/64” twist bit made drilling the holes a simple process.
Bill
Since then I have made jigs and other work surfaces that incorporate 1/4” T-Track that accept standard 1/4” hex head bolts. The problem I encounter is the 1/4” hex head bolts in my clamps lock down to the 5/16” T-Trqck but spin freely until there is sufficient pressure against the bolt head. This usually requires three hands.
I needed a solution that would allow the use of the 1/4” hex bolts in both size T-Tracks.
A cross pin installed in the head of the 1/4” bolts was the answer. The cross pin prevents the bolt from spinning freely but still allows it to be used in the different size T-Tracks.
I was going to use a finishing nail as the cross pin but found a perfect alternative being the very dull HSS 5/64” twist bit I used to drill half way through the first bolt head. Switching to a Cobalt 5/64” twist bit made drilling the holes a simple process.
Bill