Value Collection SF043038 Precision Dowel Pin 5/16 X 3/4 in Grade 8

Product Description

The VALUE COLLECTION SF043038 is a precision dowel pin manufactured from alloy steel to Grade 8 specifications. It measures 5/16 inches in diameter and 3/4 inches in overall length, with a diameter tolerance of 0.0002 inches for tight, repeatable fitment. The pin features one beveled end and one rounded end, a Rockwell C hardness of 50-58 HRC, and a double-shear breaking strength of 20,000 pounds. It conforms to ASME B18.8.2. Machinists, tool-and-die makers, and maintenance technicians use this type of pin for precise alignment of fixtures, jigs, dies, and mechanical assemblies.

This precision dowel pin is suited for industrial and manufacturing environments where accurate component alignment and retention are required. Typical applications include machine tool fixtures, press tooling, mold alignment, and general mechanical assembly work. The hardened alloy steel construction makes it appropriate for high-load applications where shear resistance and dimensional consistency are critical. It is sold and ordered in multiples of 100 units per order, with a package quantity of 1 pin per unit.

Key Features

• 5/16-inch diameter with a tight diameter tolerance of 0.0002 inches for precision fitment
• 3/4-inch overall length suitable for shallow-to-medium depth alignment applications
• Grade 8 alloy steel with 50-58 HRC hardness for high wear and shear resistance
• Double-shear breaking strength of 20,000 pounds
• One beveled end and one rounded end for guided insertion and positive seating
• Conforms to ASME B18.8.2 fastener standard

Compatibility

Designed as an OEM-style precision alignment pin for use in standard 5/16-inch diameter dowel pin holes in machine tool fixtures, jigs, dies, and mechanical assemblies per ASME B18.8.2.

Installation Notes

Precision dowel pins are typically installed by machinists or maintenance technicians using a press or mallet with a proper driver. Always verify hole diameter and depth against pin tolerances before installation to avoid galling or seizing. Power down and de-energize any equipment before servicing components that use dowel pins for alignment. Do not force an oversized pin into an undersized hole, as this can cause bore damage or pin failure.