Value Collection MSC67705285X Threaded Taper Pin Size 8

Product Description

The VALUE COLLECTION MSC67705285X is a Size 8 threaded taper pin manufactured from C-12L14 free-machining steel with an uncoated finish. It features a 5-inch pin length, a large-end diameter of 0.49 inches, a neck diameter of 0.368 inches, and a 7/16-20 threaded end for secure nut retention. Threaded taper pins are used to lock hubs, collars, levers, and other machine components onto shafts, transmitting torque through a tapered interference fit. The threaded end allows the pin to be drawn tightly into the tapered hole and removed with standard tooling. This pin conforms to AN386 standards and is suited for maintenance, repair, and OEM assembly applications.

Threaded taper pins in Size 8 are a common fastener in mechanical assemblies across industrial, aerospace-adjacent, and general manufacturing environments. They are installed wherever a removable, positive-drive connection is needed between a shaft and a mounted component. The 7/16-20 thread accommodates a standard nut to seat and retain the pin under load. Machinists, millwrights, and maintenance technicians typically install these pins during equipment assembly, rebuild, or scheduled maintenance procedures.

Key Features

• AN386-compliant threaded taper pin for standardized fit and interchangeability
• C-12L14 free-machining steel for consistent dimensional accuracy and smooth surface finish
• 5-inch pin length suits medium-to-large shaft assemblies
• 7/16-20 threaded end allows nut-driven installation and clean extraction
• Large-end diameter of 0.49 inches with a maximum diameter tolerance of 0.0013 inches
• Uncoated finish — suitable for applications where additional coatings are applied post-installation or are not required

Compatibility

Designed as a standard AN386 Size 8 threaded taper pin for use in mechanical assemblies requiring a 5-inch, 7/16-20 threaded taper pin with a 0.49-inch large-end diameter.

Installation Notes

Installation is typically performed by machinists or millwrights using a reamed tapered hole sized to match the taper pin specification. De-energize and lock out all equipment before beginning installation or removal. Drive the pin into the reamed hole to achieve full interference fit, then thread and snug the retaining nut. Never install a taper pin in an unfinished or improperly reamed hole, as this will prevent full seating and compromise joint integrity.