Product Overview Lincoln Drive-Type Grease Fitting Drive-type fittings are designed for fast production line installation in untapped holes to save thread tapping costs. Circumferential serrations on shank provide a hydraulic tight seal when fitting is installed properly. Cannot be used where high lubricant back pressures can be developed. Hole sizes and shank dimensions are for reference use only. To determine optimum hole size, test applications should be conducted using the type of material into which the fitting is to be installed -- steel, cast iron, brass, aluminum, etc. Key source specifications include Model 5318; Size: 49/64"; Diameter: 1/4". Key Features Size: 49/64" Diameter: 1/4" Lincoln Drive-Type Grease Fitting Not Ideal For Not ideal for installations requiring a different size than 49/64". Product Details Review the product details below to confirm the model / mpn, size, diameter match your equipment or lubrication system. Shared Product Details Brand Lincoln Industrial Model / MPN 5318 Description 65° angle Size 49/64" Diameter 1/4" Additional Product Information Hole sizes and shank dimensions are for reference use only. To determine optimum hole size, test applications should be conducted using the type of material into which the fitting is to be installed -- steel, cast iron, brass, aluminum, etc. Production tolerances of hole size must be taken into consideration when test is conducted.