This handy AN bolt gauge is indispensible when working with AN hardware. With length increments of only 1/8 inch and dash numbers that do not translate directly to bolt length, AN bolts can be confusing. This gauge makes it easy to determine what size bolt you have in your hand. Simply place the bolt in the appropriate slot. The end of the bolt will point to the correct dash number.
This lightweight aluminum gauge is designed for AN3 through AN8 bolt sizes up to 5" long. Compact size (3 3/4" x 6" x 1/4") fits easily into your pocket or toolbox.