Eye Bolts

How to read Bolt Sizes

The first number after “AN” designates the diameter.

The A at the very end of all the numbers designates that there will be no hole in the shank.

The last number, either single or double digit denotes length; a single digit denotes nominal length to the 1/8th of an inch; double digit numbers denote the first digit as a whole measure in inches, the second an additional nominal sizing to the 1/8 inch measure.

Typically, AN hardware this size will have 3/8″ thread length.

The abbreviations “FT” = Full Thread.

Abbreviations NF = Nation Fine thread