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.
1/4" Drive-Type Grease Fitting
1/4" drill size, straight, .41" long, no ball check