I’m finally up to the vise installation step of building my bench. I’ve got a Record 52 1/2 I want to use on my Paul Seller’s style bench. The previous owner used carriage bolts but I didn’t want metal on top so I’m using lag screws.
I measured the rear slotted bolt holes and it looks like they’ll take a 5/8″ screw. I went on down to the hardware store and picked up a 1/2″ X 3″ lag screw and it looks huge! I grabbed some 3/8″ X 3″ lag screws and they look a lot more reasonable.
I’m inclined to use the 3/8″ screws along with two 1/4″ X 3″ lag screws through the rear jaw into the bench. But I wonder if I need the extra size screws on the bottom of the vise. Could I be introducing some play in the vise by allowing more room between the screw size and screw hole?
Does anyone remember what size they used on a similar vise?
Yes, I know, I’m over thinking this. But this has been a LONG road and I don’t want to “screw it up” on the last leg.
Just a follow up. I took George’s advice and went with the 1/2″ lag screws. I bored a 3/8″ pilot hole for them and rubbed some paraffin on them before sinking them into the 4X12 Douglas fir bench top. It took a fair amount of force to seal the deal but I’m betting that vise isn’t going anywhere any time soon.