Often used for positioning components and securing assemblies, these pins taper at a uniform rate to fit snugly in tapered holes. They have slightly rounded edges to aid insertion. To install, create a tapered hole using a taper-pin drill bit that matches the pin number. To remove, hit the small end of the pin with a punch to drive it out.

Breaking strength is measured as single shear, which is the force required to break the pin into two pieces.

Steel pins have good strength.

Inch pins meet ASME B18.8.2 specifications for material and dimensions.

For technical drawings and 3-D models, click on a part number.

Fasten from the nose end with a wrench for more torque than slotted long-nose spring plungers. These spring plungers have a nose that is longer than ball-nose spring plungers to provide a large bearing surface and handle side loads. Made from wear-resistant steel, the body has a black-oxide finish to resist corrosion in dry environments.

Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.

Spring plungers with thread locker have a nylon locking pellet that adds friction to resist loosening.

Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.

For technical drawings and 3-D models, click on a part number.

These spring plungers have a nose that is about three-times longer than standard long hex-nose spring plungers. The extra-long nose provides a large bearing surface to handle side loads. Install from the nose end with a wrench for more torque than slotted long-nose spring plungers. They're made from wear-resistant steel. A nylon locking pellet adds friction to resist loosening.

Black-oxide steel bodies resist corrosion in dry environments.

Zinc-plated steel bodies resist corrosion in wet environments.

Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.

For technical drawings and 3-D models, click on a part number.

The tapered shaft of these pins eliminates the need for hammering and prying when aligning flange bolt holes. To align bolt holes, fit the tapered end of the pin into the bolt holes and use a wrench on the hex head to rotate and align the holes. If your bolt hole is in between the sizes listed, choose the smaller size pin.

For technical drawings and 3-D models, click on a part number.

Line up holes by driving these pins through existing rivet, pin, and bolt holes in multiple pieces of metal. Use them to align structural components such as I-beams and angle irons for bolting, riveting, and welding. Alternatively known as lineup taper punches, they can also punch through metal to create new holes.