Steel Lock-Out Spring Plunger 3/8-16 Thread - Hand Retractable With Knurled Handle

If you work with machinery, fixtures, or any kind of industrial equipment, you probably know how handy spring plungers can be. This particular one has a cool lock-out feature that lets you retract the plunger and keep it retracted with just a 90-degree turn of the knurled handle. The 3/8-16 thread size is pretty common, and with a 0.750 inch thread length, it gives you plenty of engagement for secure mounting. The body is made from low carbon steel with yellow zinc plating, while the plunger pin itself is case hardened steel with the same plating for corrosion resistance. The spring is steel too, so you're getting an all-metal construction that can handle some serious use. The knurling on the handle gives you good grip even if your hands are oily or you're wearing gloves. These are available without the sealing patch, which might be exactly what you need depending on your application. They're perfect for positioning, locking, or indexing components in everything from jigs and fixtures to machinery and automation equipment. The lock-out feature is super useful when you need to load or unload parts without the plunger getting in the way. Installation is straightforward - just thread it into your tapped hole and you're good to go. The yellow zinc plating provides decent corrosion resistance for most industrial environments. Whether you're building prototypes, maintaining equipment, or creating custom fixtures, this spring plunger delivers reliable performance.