Value Collection SF043043 Precision Dowel Pin 5/16x2.5in Grade 8

Product Description

The VALUE COLLECTION SF043043 is a precision dowel pin engineered to tight dimensional tolerances for reliable locating and alignment in machined assemblies. Manufactured from Grade 8 alloy steel with a hardness of 50-58 HRC, this pin delivers high wear resistance and the load-bearing capacity required in demanding industrial and mechanical applications. At 5/16 inch in diameter and 2.5 inches in overall length, it conforms to ASME B18.8.2 standards. The pin features one beveled end and one rounded end, which aids in controlled insertion and proper seating during assembly. Machinists, tool-and-die makers, and maintenance technicians working with jigs, fixtures, and precision assemblies are the primary installers.

This dowel pin is suited for use in metal fabrication, tooling, mold-making, and general machine assembly where tight positional tolerances are critical. The Grade 8 alloy steel construction makes it appropriate for high-stress environments where shear loads are a concern. Its double-shear breaking strength of 20,000 pounds supports use in heavy-duty fixture and die applications. The ASME B18.8.2 compliance ensures dimensional consistency across replacement and interchangeable applications in both production and maintenance settings.

Key Features

• Grade 8 alloy steel construction with 50-58 HRC hardness for high wear and shear resistance
• ASME B18.8.2 compliant for standardized dimensional interchangeability
• Diameter tolerance of 0.0002 inches for precision locating and alignment
• Double-shear breaking strength of 20,000 pounds for high-load applications
• One beveled end and one rounded end for controlled, damage-free insertion
• 5/16 inch diameter by 2.5 inches overall length — compact and versatile form factor

Compatibility

Designed as a precision replacement or original-installation dowel pin for jigs, fixtures, dies, molds, and machined assemblies that require ASME B18.8.2 compliant 5/16-inch precision dowel pins.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using an arbor press or mallet with a proper pin driver to avoid deforming the pin or bore. Always ensure the receiving hole is reamed to the correct tolerance before pressing the pin to prevent galling or damage to the bore surface. Inspect hole alignment before driving the pin fully seated. Do not apply lateral force to the pin after installation, as alloy steel pins at this hardness rating are resistant to bending but susceptible to brittle fracture under off-axis loading.