Zerk Fitting, 5/16 in Hex, Trivalent Zinc Plated, Steel, Straight Taper Thread, 1/4 in-28 Thread

ALEMITE 1/4 in-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 in-28 UNF, Class 3B, straight threaded holes having a modified maximum minor diameter of 0.2151 in, to provide 75 % minimum thread height.