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Alemite 1680-B 1/4-28 Taper Thread Fitting
Configuration: Straight - Hex Size 5/16" - Overall Length: 31/32" Shank Length 23/64"
Alemite 1/4"-28 Taper Thread Fittings are used on most cars and trucks, as well as many industrial machines. It is recommended that SAE-LT taper threads be assembled into 1/4"-28 UNF, Class 3B, straight threaded holes having a modified maximum minor diameter of 0.2151", to ensure 75% minimum thread height.