**FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information

[Justin Stiltner]

I think the carriage bolts are used to hold 2 of the 2" lumber together, it would be hard to tighten the carriage bolts if they were used to hold the tread AL down, unless you can make a square hole, but at 4" long, 2 pieces of 2 " lumber would be 3" to 3.5" wide plenty of space for a washer and nut under the head, also in 2004 the uprights that held the bar were held on with similar types of bolts, in an application like that screws are normally not enough.

Just as an aside to the AL tread plate, to cut something that big you could use a jig saw with a metal cutting blade and plenty of lubricant(wd-40) we did this to make our crate from that material.