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The VALUE COLLECTION MSC67704403X is a Size 6 externally threaded taper pin machined from C-12L14 steel in an uncoated finish. Taper pins are precision-ground fasteners used to secure hubs, collars, and machine components to shafts, preventing rotational and axial movement. This pin features a 5/16-24 thread at the small end for a draw nut, a large end diameter of 0.339 inches, and a neck diameter of 0.253 inches. It meets AN386 standards and is suited for applications requiring reliable, removable shaft locking in mechanical assemblies. Machinists, maintenance technicians, and industrial mechanics install this type of fastener across general manufacturing and maintenance operations.
This threaded taper pin is used in mechanical power transmission assemblies where a secure, removable connection between a shaft and a mating component is required. The 5/16-24 threaded end allows a draw nut to pull the pin firmly into the tapered hole and also permits controlled extraction without damage to the assembly. It is appropriate for light-to-medium duty industrial applications including machine tool setups, pump assemblies, and conveyor components where AN386 compliance is specified.
Designed as a standard AN386 Size 6 threaded taper pin for use in mechanical assemblies requiring a 5/16-24 threaded taper pin with a 0.339 inch large end diameter.
Installation is typically performed by machinists or maintenance mechanics using a tapered reamer to prepare a matched taper hole before driving the pin. Power down and de-energize all equipment before disassembling shaft components. The draw nut on the threaded end should be used to seat the pin fully and to facilitate removal without damaging the mating component. Follow applicable machinery safety standards and equipment manufacturer procedures during installation and removal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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