Mounting an end cap on the end of a work bench can be challenging. Since the end cap grain direction is perpendicular to the grain direction of the bench top, the bench top must be allowed to move with seasonal humidity changes or it may split where it is restrained. The typical way to handle this situation is to route some slots into the underside of the bench top to accept standard hex nuts. The end cap then has to have large slotted counter-bores to accept hex headed bolts. I think the large bolt heads and slots in the end cap are unsightly and when you inevitably have to tighten the end cap bolts (due to seasonal expansion and contraction) you will need to search for two tools; a socket wrench and an open end wrench.

 When I needed an end cap for the wagon vise on my latest bench I thought there must be a better way. I wanted mounting hardware with a diminutive appearance, simple installation and only required one tool for tightening. I also wanted to be able to store the tool on the bench so the occasional tightening would be a minor distraction. The hardware consists of half cylindrical shaped nuts which mate to similar shaped washers. The washers have ledges which keep the nuts from turning and have a slot to allow for the bench top movement. Both the washer and nut are simply installed in a 1-1/4” diameter hole drilled into the bottom of the work bench top. Over sized holes are drilled into the end of the bench top and the end cap is secured with 3/8” diameter socket head cap screws. The black oxide coated cap screws in the counter bored holes provide an attractive understated appearance in the end cap. The only thing required for mounting the end cap is drilling holes. The hex key wrench used to tighten the fasteners is stored under the bench top ready for use.

Advantages:

• Single tool tightening.
• Wrench stores under bench.
• Attractive appearance.
• Easy to install - just drill holes.

The End Cap Mounting Hardware Kit includes:

• 3 half cylinder washers.
• 4 half clylinder nuts.
• 4 black oxide finished 3/8" X 4" long socket head cap screws.
• 4 cadmium plated washers.
• 5/16" hex key wrench.
• instructions by PDF download from the instructions tab. 

Please allow 2 weeks for delivery. Shipping weight 3 pounds.

 

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Instead of routing a slot into the end cap to allow for wood movement, the slot is machined into the half cylinder washer. Ledges machined into the half cylinder washer prevent the half cylinder nuts from turning so a single hex key wrench may be used to tighten.

The washers and nuts are precision CNC machined from alloy 6061 aluminum. The socket head cap screws are made from alloy steel and are black oxide coated. The washers are cadmium plated alloy steel.