T-Track cams come with a 3/8″ x 5/8″ long hex head bolt and a 3/8″ hex nut. This setup is designed to work with heavy-duty T-Track that accepts a standard 3/8″ bolt. You can get the heavy-duty T-Track here. For other sizes of T-Track, use the appropriate hardware for your track. You can also use a threaded insert or T-nut in your table or jig to bolt the hub down.

Screw-down cams come with a 1″ fully threaded washer-head screw. You may substitute any screw that will fit through the 1/8″ hole and is appropriate for your set-up. I’ll often use the vacuum table to hold a piece of scrap plywood or melamine in place, then screw the cams down where needed. A strip or two of plywood stapled or screwed down makes a quick and sturdy fence.

The fixed wrench is handy for working with the T-Track cams. Since it typically only takes a half-turn of the wrench to loosen and re-tighten the nut, the fixed wrench keeps you from having to re-set a socket wrench from “loosen” to “tighten” and back. It has a 9/16″ socket in both ends, so you can use the long end for rapid threading of the nut on the bolt.

Instructions For Use

Align the handle parallel to the edge of the workpiece while tightening the nut or screw, then swivel the handle away from the workpiece as far as is needed to tighten the cam against the workpiece. Maximum pressure will be applied when the handle is perpendicular to the workpiece.

Leave a little wiggle room when tightening the nut or screw, so as to be able to remove the workpiece, especially for repetitive set-ups. 1/32″ to 1/16″, about the thickness of a piece of edgebanding or a playing card or two, seems to work well. Wedges or shims can also be used between the handle and the workpiece, both to protect the workpiece edge and to take up small variations in workpiece size.

There is only a small amount of offset in the cam between the parallel and perpendicular positions of the handle. This is on purpose and allows a large amount of leverage to be applied when swiveling the handle. Therefore it is important not to leave too large a gap between the handle and workpiece when tightening the nut or screw. If the cam or workpiece feels at all loose, re-position the hub or use a shim between the handle and the workpiece to take up the slack.

Frequently Asked Questions

Q: How big are they?
A: T-Track cams are 2 7/8″ x 8 3/8″ x 3/4″ and have a 5/8″ x 2 1/4″ diameter hub.
Screw Down cams are 2 5/8″ x 7 3/4″ x 3/4″ and have a 1/2″ x 1 3/4″ diameter hub.


Q: Are your products backed by any sort of warranty?
A: Since the use of these devices is out of the control of the seller, seller makes no
warranty of any type regarding the use, abuse, or misuse of these hold-down devices.

Q: What is the shipping rate?
A: A $15 shipping and handling charge applies to all orders within the United States.
Local pickup in the Atlanta area is available at no charge.
For international orders, please email us, including your address, for a shipping quote.

Q: What is the tax rate?
A: 7% Sales Tax will be added to all orders delivered within the state of Georgia.
Sales Tax is added automatically during checkout.

Q: What is your return policy?
A: If you are dissatisfied for any reason with your purchase, you may return the
Sandbox Cams within 30 days of purchase for a full refund.

Q: How can I get further information on the Sandbox Cams?
A: Send us an email at