Value Collection MSC67704049X Threaded Taper Pin Size 5

Product Description

The VALUE COLLECTION MSC67704049X is a Size 5 externally threaded taper pin manufactured from C-12L14 steel with an uncoated finish. Threaded taper pins are used to secure hubs, collars, and machine components onto shafts, with the threaded end accepting a nut to resist vibration-induced loosening. This pin features a large end diameter of 0.287 inches, a neck diameter of 0.198 inches, and a pin length of 1.5 inches. The 1/4-28 unified fine thread provides positive retention in high-vibration assemblies. Machinists, millwrights, and maintenance technicians install these pins when a standard plain taper pin is insufficient for the application.

This threaded taper pin is suited for use in industrial machinery, power transmission assemblies, and mechanical linkages where shaft-to-hub connections must resist axial movement and vibration loading. The Size 5 designation and AN386 standard compliance make it a common selection in aerospace-adjacent maintenance and general precision machine work. The C-12L14 free-machining steel construction allows for clean installation in close-tolerance bored holes.

Key Features

• Size 5 taper pin with 0.287 inch large end diameter for standard taper hole fitment
• 1/4-28 UNF threaded end accepts a standard nut for positive axial retention
• 1.5 inch pin length suitable for typical hub and collar thicknesses
• C-12L14 free-machining steel grade supports close-tolerance boring and reaming
• Meets AN386 standard for dimensional consistency
• Uncoated finish — compatible with customer-applied corrosion protection where required

Compatibility

Designed as a standard AN386 Size 5 threaded taper pin for use in any application requiring a 1/4-28 threaded taper pin with a 0.287 inch large end diameter bored hole.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a reamed taper hole matched to the pin size. Power down and lock out all equipment before removing or installing taper pins in rotating assemblies. Drive the pin into the tapered hole until snug, then apply the retaining nut to the threaded end to lock the pin in place. Do not substitute a plain taper pin bore for a threaded pin application where vibration retention is required.