Value Collection -34878-1 Dowel Pin 3/16x5/8 Alloy Steel

Product Description

The VALUE COLLECTION -34878-1 is a standard dowel pin machined from alloy steel to Grade 8 material specification, conforming to ASME B18.8.2. It measures 3/16 inch in diameter and 5/8 inch (0.6250 inches) in overall length. One end is beveled and the opposite end is rounded, which aids in alignment and insertion during assembly. The pin carries a Rockwell hardness rating of 50-58 HRC and is rated for double-shear breaking strength measurement, making it suitable for precision locating and alignment applications in mechanical assemblies. Machinists, tool and die makers, and maintenance technicians are the typical installers of this hardware.

This dowel pin is used in fixtures, jigs, molds, and mechanical assemblies where precise hole-to-hole alignment or part location is required. The alloy steel construction and Grade 8 designation make it appropriate for moderate-to-high load applications in both industrial and manufacturing environments. The ASME B18.8.2 standard ensures dimensional consistency across production runs, which is important when pins must be interchangeable across fixtures or replacement assemblies. The tight diameter tolerance of 0.0002 inches supports press-fit or close-clearance installations.

Key Features

• Alloy steel construction, Grade 8 material specification for strength and durability
• Conforms to ASME B18.8.2 fastener standard for dimensional consistency
• 50-58 HRC hardness rating for wear resistance in precision locating applications
• One beveled end and one rounded end for ease of insertion and alignment
• Diameter tolerance of 0.0002 inches supports close-clearance and press-fit installations
• Double-shear breaking strength rating applicable to load-bearing alignment uses

Compatibility

Designed as an OEM-style replacement or standard-stock dowel pin for mechanical assemblies, fixtures, jigs, and molds requiring a 3/16-inch diameter, 5/8-inch length pin conforming to ASME B18.8.2.

Installation Notes

Dowel pins of this type are installed by machinists or maintenance technicians using a press or mallet into reamed holes sized for the specified fit class. Always verify hole diameter and surface finish match the pin tolerance before installation to avoid galling or improper seating. Power down and de-energize any equipment before servicing assemblies that contain dowel pins. Do not reuse a pin that has been removed from a press-fit application, as the interference condition may be compromised.