Value Collection 34839X Taper Pin Size 3 Steel 2.5 in Oal

Product Description

The VALUE COLLECTION 34839X is a Size 3 uncoated steel taper pin manufactured to ANSI/ASME B18.8.2 standards. The pin features a small end diameter of 0.167 inches and a large end diameter of 0.219 inches, with an overall length of 2.5 inches. Material is Grade C-12L14 steel, a free-machining carbon steel that offers consistent dimensional accuracy and good shear strength for mechanical fastening applications. Machinists, millwrights, and maintenance technicians install taper pins to secure hubs, collars, and levers to shafts, providing positive alignment and resistance to rotational movement.

This taper pin is suited for light to medium-duty mechanical assemblies in industrial, manufacturing, and maintenance environments. Typical applications include securing shaft collars, handwheels, and gears in machine tools, conveyors, and general mechanical assemblies. The standardized Size 3 taper dimensions allow direct interchangeability with other ANSI/ASME B18.8.2-compliant taper pins of the same size designation. Sold individually, with a minimum order quantity of 10 pieces.

Key Features

• ANSI/ASME B18.8.2 standard taper pin, Size 3
• Grade C-12L14 free-machining steel construction
• Small end diameter: 0.167 inches; large end diameter: 0.219 inches
• Overall length: 2.5 inches
• Minimum diameter tolerance: -0.0007 inches; maximum diameter tolerance: +0.0013 inches
• Uncoated finish — suitable for standard mechanical assemblies without corrosion exposure

Compatibility

Designed as an OEM-style replacement or standard-service taper pin compatible with any application requiring an ANSI/ASME B18.8.2 Size 3 taper pin.

Installation Notes

Taper pins are typically installed by millwrights or maintenance machinists using a tapered reamer to prepare the mating hole, followed by driving the pin with a hammer and pin punch. Ensure the mating shaft and hub are properly aligned and the assembly is de-energized and secured before installation. Do not force an oversized pin into an undersized hole, as this can cause fracturing of the pin or damage to the assembly. Follow applicable facility lockout/tagout procedures before beginning work.