Thread: Miter track T bolts

Jigs & Guides : CARBA-TEC carbatec
there will be others, machinery warehouse would probably have them too

Have you tried hex head bolts?

My local nuts'n'bolts specialist stocks a small range. Try hunting around a bit more.

Something like these will work

Miter Slot and T-Slot Table Accessories

but it isn't hard to make something yourself.

I have bought some nylon strips from Prof Woodworking, put a hole and a slit in there and when you put a bolt in the hole and tighten it it will expand the slit and tighten against the sides of the track.

Professional Woodworkers Supplies

Thanks for all the replies
This one is exactly what I was looking for!
Woodpeckers Mitre Slot Nut (Pair)

Cup headed bolts work well also - grind the top of the dome flat and parallel sides on the circular head - leave the rounded parts of the head as it aids the sliding in the track and does not tend to bind as some hex headed bolts do.

Mitre slots have a defacto standard size of 3/4 x 3/8 inch, but many don't follow that accurately. To the best of my knowledge, undercut mitre slots don't have any standard, informal or defacto. The undercuts are in fact intended to accomodate a detachable extension at the nose of some mitre gauge bars. The extension rides in the undercut to prevent the mitre gauge tilting down if the gauge is drawn back beyond the leading edge of the table to crosscut a wide panel.

MCLS offer an ali extrusion undercut mitre track, with a matching extrusion that slides along the track but locks into the undercut to avoid tilting or lifting. They also offer other items based on the same matching extrusion for localised fastening etc. however there is no guarantee that they will fit the track machined in your saw, they are designed to match their extrusion.

Similarly, with the Woodpecker parts you found, they might be the bees knees if they fit you table slot, but otherwise will be useless to you.

You can make your own mitre slot clamp blocks for featherboards etc with a a strip of wood that is a neat fit in the slot and about 100mm or more longer than the bolt spacing required. Drill a couple of holes to suit the item you need to mount, countersink them and slit from the nearest end to the holes and beyond about 20mm. Install CS screws in the holes and install in the slot, and fit the accessory you need to mount and fasten with a nut. The nut will draw the CS head of the screw into the CS reccess and expand the timber strip in the slot clamping it in place unless you intend to apply a large lifting force.