Value Collection MP34841 Taper Pin Size 4 Uncoated Steel

Product Description

The VALUE COLLECTION MP34841 is a Size 4 taper pin machined from C-12L14 steel and supplied in an uncoated finish. Taper pins are precision fasteners used to secure hubs, collars, and other machine components to shafts, providing accurate and repeatable alignment under load. This pin features a small end diameter of 0.2188 inches and a large end diameter of 0.25 inches, with an overall length of 1.5 inches. The tapered geometry locks components in place when driven into a reamed hole, resisting axial and rotational movement. Machinists, maintenance technicians, and millwrights install these fasteners in manufacturing, mechanical assembly, and equipment repair applications.

Size 4 taper pins are a standard fastener found in general industrial and mechanical assemblies, including gear drives, pump shafts, conveyor components, and positioning fixtures. The C-12L14 free-machining steel grade offers good machinability and consistent dimensional tolerances, making it well suited for precision assemblies where hole fit and repeatable installation are required. This part ships in a package quantity of 10 and has a minimum order quantity of 1, making it practical for both single-repair jobs and bench stock replenishment.

Key Features

• Size 4 taper pin with 0.2188-inch small end diameter and 0.25-inch large end diameter
• Overall length of 1.5 inches for use in standard Size 4 reamed holes
• C-12L14 free-machining steel grade for consistent tolerances and machinability
• Uncoated finish; suitable for indoor mechanical assemblies or secondary coating as needed
• Conforms to ANSI/ASME B18.8.2 dimensional standards
• Sold in a 10-piece package with a minimum order quantity of 1

Compatibility

Designed as an ANSI/ASME B18.8.2 standard Size 4 taper pin, compatible with any application requiring a Size 4 tapered reamed hole per that specification.

Installation Notes

Taper pins are installed by machinists or maintenance technicians using a taper pin reamer to prepare the mating hole and a pin punch or hammer to drive the pin to full seat. De-energize and lock out all equipment before working on rotating or loaded shaft assemblies. The pin should be driven until snug resistance is felt; never overdrive, as this can split the hub or distort the assembly. Removal is performed by driving the pin out from the small end using an appropriately sized pin punch.