Value Collection MSC67704726X Threaded Taper Pin Size 7

Product Description

The VALUE COLLECTION MSC67704726X is a Size 7 externally threaded taper pin machined from C-12L14 free-machining steel with no surface coating applied. The pin measures 3.5 inches in overall length with a large-end diameter of 0.407 inches and carries a 3/8-24 UNF threaded end for positive retention with a mating nut. Threaded taper pins are used to lock hubs, collars, and levers onto shafts in mechanical assemblies, transmitting torque and preventing axial movement. The diameter tolerance is held to 0.0013 inches, meeting AN386 standards. Machinists, millwrights, and maintenance technicians are the primary installers for this fastener type.

This pin is suited for general industrial and mechanical applications where a removable, self-locking shaft-to-hub connection is required. The threaded end allows the pin to be drawn fully into the tapered hole and secured with a nut, preventing the pin from backing out under vibration or dynamic loading. Typical use scenarios include drive shaft assemblies, gear hubs, lever arms, and fixture components in both light and heavy manufacturing environments. The uncoated finish is appropriate for indoor or controlled environments where corrosion exposure is minimal.

Key Features

• Size 7 taper pin with 0.407 inch large-end diameter
• 3.5 inch pin length for adequate shaft engagement depth
• 3/8-24 UNF threaded end for nut retention and positive drive
• C-12L14 free-machining steel construction for consistent dimensional accuracy
• Diameter tolerance of 0.0013 inches per AN386 standards
• Uncoated finish suitable for controlled-environment applications

Compatibility

Designed as a standard AN386 Size 7 threaded taper pin for use in mechanical assemblies requiring a 3/8-24 threaded retention fastener with a 0.407 inch large-end diameter.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a taper pin reamer to prepare a matched tapered hole before driving the pin. Power down and de-energize any associated machinery before beginning installation or removal. The pin should be seated fully into the reamed hole before threading the retention nut. Never force an oversized pin into an underreamed hole, as this can split the hub or collar.