Value Collection MSC67703686X Threaded Taper Pin Size 4

Product Description

The VALUE COLLECTION MSC67703686X is a Size 4 threaded taper pin made from C-12L14 steel with an uncoated finish. It features a 1/4-28 threaded end and measures 0.248 inches at the large end diameter, with a neck diameter of 0.198 inches and a pin length of 0.75 inches. Threaded taper pins are precision fasteners used to secure components to shafts or hubs, allowing for controlled disassembly without destroying the joint. This pin conforms to AN386 standards, making it suitable for applications that require dimensional consistency and reliable holding force. It is typically installed by machinists, maintenance technicians, and assembly professionals working in industrial, aerospace, or mechanical fabrication environments.

This threaded taper pin is intended for use in mechanical assemblies where a positive, removable connection between mating parts is required. The 1/4-28 threaded end accepts a nut that draws the pin securely into the tapered hole, providing precise alignment and resistance to vibrational loosening. Common applications include shaft-to-hub connections, pivot assemblies, and fixture locating in light to medium-duty industrial machinery. The C-12L14 free-machining steel construction offers consistent dimensional accuracy and ease of installation in standard tapered holes.

Key Features

• Size 4 taper pin with 0.248-inch large end diameter for precise hole fitment
• 1/4-28 threaded end for nut-driven installation and controlled extraction
• C-12L14 free-machining steel construction for dimensional consistency
• Neck diameter of 0.198 inches with maximum diameter tolerance of 0.0013 inches
• Conforms to AN386 standard for interchangeability and dimensional compliance
• Uncoated finish suitable for standard indoor or protected mechanical environments

Compatibility

Designed as an AN386-compliant Size 4 threaded taper pin for use in standard tapered holes requiring a 1/4-28 threaded fastener interface in mechanical and industrial assemblies.

Installation Notes

Threaded taper pins are installed by machinists or maintenance technicians using a hammer or press to seat the pin, followed by tightening a nut on the threaded end to draw it fully into the tapered bore. Always ream the receiving hole to the correct taper before installation to ensure proper seating and alignment. De-energize and lock out any equipment before servicing components that incorporate taper pins. Do not reuse a taper pin that shows signs of deformation or thread damage.