Value Collection MSC67706168X Threaded Taper Pin Size 4

Product Description

The VALUE COLLECTION MSC67706168X is a Size 4 threaded taper pin made from 303 grade 18-8 passivated stainless steel. It features a 1/4-28 threaded end, a large end diameter of 0.248 inches, and a pin length of 3 inches. The passivated finish enhances corrosion resistance without altering the base metal dimensions. This pin is used in mechanical assemblies where precise, removable shaft-to-hub connections are required. Installation and removal are straightforward, making it a reliable choice for maintenance-intensive applications. Machinists, millwrights, and mechanical assemblers typically install and service this type of fastener.

Threaded taper pins are used across industrial, commercial, and OEM assembly applications where a positive, repeatable alignment between mating components is needed. The threaded end allows for controlled extraction without damaging the bore. This pin meets AN386 standards, making it suitable for aerospace-adjacent and precision mechanical assemblies. Its stainless steel construction makes it appropriate for environments with moderate moisture or corrosion exposure, including food processing, marine, and general industrial settings.

Key Features

• Size 4 taper profile with a large end diameter of 0.248 inches
• 1/4-28 threaded end for controlled extraction
• Pin length of 3 inches
• 303 grade 18-8 passivated stainless steel construction for corrosion resistance
• Maximum diameter tolerance of 0.0013 inches for precise fitment
• Meets AN386 standard

Compatibility

Designed as a standard Size 4 threaded taper pin for use in mechanical assemblies requiring AN386-compliant tapered pin fasteners with a 1/4-28 threaded extraction end.

Installation Notes

Threaded taper pins are installed by machinists or mechanical assemblers using a taper pin reamer to prepare the mating bore to the correct taper angle before driving the pin. Always de-energize and lock out machinery before servicing any shaft-to-hub connection. The threaded end requires a nut or puller for controlled removal — do not drive the pin out from the threaded end. Verify bore taper and pin size compatibility before installation to avoid galling or bore damage.