ADDITIONAL INFORMATION:
Drive type fittings are most commonly used in high volume installations to avoid tapping costs. The serrated shank holds the fitting securely in place when driven into a hole. All drive fittings have a yellow zinc finish and can withstand a 70-hour salt spray test. Actual drill size may depend upon the nature of the material into which the fitting is driven.
5/16" Drive-Type Grease Fitting
5/16" drill size, straight, .58" long