Value Collection 34842X Size 4 Steel Taper Pin 2 in Oal

Product Description

The VALUE COLLECTION 34842X is a Size 4 uncoated steel taper pin manufactured to ANSI/ASME B18.8.2 standards from C-12L14 free-machining steel. It measures 2 inches overall length with a small end diameter of 0.2084 inches and a large end diameter of 0.25 inches. The taper pin design provides reliable, self-locking alignment between mating components such as shafts and hubs. Diameter tolerances are held to -0.0007 inches on the minimum and +0.0013 inches on the maximum, ensuring consistent fit across production runs. Machinists, maintenance technicians, and assembly professionals use this pin where precise, removable mechanical alignment is required.

This taper pin is suited for general industrial and mechanical assembly applications where a secure, repeatable connection between a shaft and a collar, hub, or similar mating part is needed. The straight-taper geometry allows the pin to be driven in and removed without permanent deformation of the hole. It is appropriate for light-to-moderate load applications in machinery, tooling fixtures, and mechanical assemblies. This product is sold individually but carries a minimum order quantity of 100 units, making it well-suited for production and MRO procurement.

Key Features

• Conforms to ANSI/ASME B18.8.2 dimensional standard for interchangeable fit
• C-12L14 free-machining steel for consistent surface finish and machinability
• Uncoated finish — no added coating thickness to affect tolerance stack-up
• Tight diameter tolerances: -0.0007 inches minimum, +0.0013 inches maximum
• Self-locking taper geometry allows removal and reinstallation without special tooling
• Size 4 designation per ANSI/ASME B18.8.2 for standardized hole preparation

Compatibility

Designed as a standard ANSI/ASME B18.8.2 Size 4 taper pin for use in any application requiring a 0.2084-inch small end and 0.25-inch large end diameter taper pin hole prepared to that specification.

Installation Notes

Taper pins are typically installed by machinists or maintenance technicians using a hammer and pin punch or an arbor press. The mating hole must be reamed to the correct taper using a standard taper pin reamer sized for Size 4 before installation. Always disengage or de-energize any machinery before installing or removing taper pins from rotating components. Do not substitute an undersized pin for a worn hole — ream to the next size or replace the component.