Value Collection 241229PR Precision Dowel Pin 5/16x1-3/4 in

Product Description

The VALUE COLLECTION 241229PR is a precision dowel pin manufactured from alloy steel to Grade 8 standards and certified to ASME B18.8.2. It measures 5/16 inches in diameter and 1-3/4 inches in overall length, with a diameter tolerance of 0.0002 inches for tight, repeatable fitment. The pin is surface-hardened to a Rockwell hardness of 50-58 HRC, delivering the resistance to shear and wear that precision alignment applications demand. One end is beveled for guided insertion and one end is rounded. Machinists, tool-and-die makers, and maintenance technicians install these pins to locate, align, or retain mating components in fixtures, jigs, dies, and assemblies.

This dowel pin is suited for industrial and manufacturing environments where close-tolerance alignment is critical. Typical applications include fixture building, mold and die alignment, machine component registration, and assembly tooling. The Grade 8 alloy steel construction handles high-load conditions, and the double-shear breaking strength of 20,000 pounds supports use in demanding mechanical assemblies. These pins are sold individually but are available in minimum order quantities of 100 units, making them practical for both bench stock and production-line replenishment.

Key Features

• Alloy steel construction heat-treated to 50-58 HRC for hardness and wear resistance
• Grade 8 material rating meets ASME B18.8.2 precision pin standard
• Diameter tolerance of 0.0002 inches ensures consistent press or slip fit
• Double-shear breaking strength of 20,000 pounds for high-load applications
• One beveled end for guided entry, one rounded end for flush or through-hole seating
• Compact form factor at 5/16 inches diameter by 1-3/4 inches length suits a wide range of fixture sizes

Compatibility

Designed as a standard-dimensioned precision dowel pin per ASME B18.8.2, compatible with any application calling for a 5/16-inch diameter precision pin in alloy steel at Grade 8 hardness.

Installation Notes

Precision dowel pins are typically installed by machinists or maintenance technicians using an arbor press or dead-blow mallet, depending on whether a press fit or slip fit is specified. Verify bore diameter and surface finish before installation to avoid galling the pin or the mating hole. Always de-burr and clean hole surfaces before pressing the pin to full depth. Pins that are press-fit are generally not intended for repeated removal without risk of dimensional change to the bore.