$1.40
Drilled grease ports without threads need a drive-in fitting rather than a conventional zerk, and this one presses directly into a 3/16 inch hole. Built in zinc-plated carbon steel to SAE J534 and rated to 8,000 PSI, it serves mast rollers, bearings, and pivot points across any brand using that port style.
Pressed or driven directly into a pre-drilled hole rather than threaded into a tapped port, this push-in straight grease fitting seats in a 3/16 inch shank bore and delivers grease to a lubrication point that was never tapped for a conventional zerk. The drive-in style is common on forklift mast rollers, bearings, and pivot points where the housing carries a plain drilled hole, making a push-in fitting the correct hardware where a threaded fitting would not hold.
Overall length runs 0.52 inches with a 5/16 inch shoulder diameter and a 1/4 inch shank length, dimensions that govern how the fitting seats and how far it protrudes once installed. Built from zinc-plated carbon steel and rated to withstand up to 8,000 PSI of grease-gun pressure, it meets the SAE J534 standard that governs grease fitting dimensions and pressure ratings, so it is a standardized component rather than a part tied to one equipment brand.
Because a drive-type fitting relies on an interference fit, confirm the port on the equipment is a drive-in style rather than threaded and that it measures 3/16 inch, since a mismatched fitting style will not seat securely no matter how close the size looks.
