AN Bolt Identification Gauge, AN3 thru AN10

With length increments of only 1/8 inch and dash numbers that do not translate directly to bolt length, AN bolts can be confusing and hard to identify. This handy AN bolt gauge makes it easy to determine exactly what 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. Head marking guide and full nomenclature instructions are printed on the back side.

This sturdy steel gauge is designed for AN3 through AN10 bolt sizes up to -50 length (over 5" long). Layback design lets you rest it on your workbench and lay the bolts on it rather than using both hands. Compact size (5.5" x 6.2") fits easily in your toolbox.