Value Collection SF043057 Dowel Pin 0.5x1.75 in Alloy Steel Gr8

Product Description

The VALUE COLLECTION SF043057 is a precision dowel pin designed to locate, align, and retain mating components in close-tolerance assemblies. Manufactured from alloy steel to Material Grade 8 and heat-treated to a hardness of 50-58 HRC, this pin delivers the strength and dimensional consistency required in demanding industrial and mechanical applications. It measures 0.5 inches in diameter and 1.75 inches in overall length, with a diameter tolerance of plus or minus 0.0002 inches. One end is beveled and one end is rounded, per standard ASME B18.8.2 geometry. Double-shear breaking strength is rated at 51,000 pounds. Machinists, tool-and-die makers, and maintenance technicians specify this type of pin where repeatable, accurate part positioning is critical.

This precision dowel pin is used in jigs, fixtures, dies, molds, and machinery where tight-tolerance alignment between two or more components must be maintained across assembly and disassembly cycles. The Grade 8 alloy steel construction and verified HRC hardness make it suitable for high-load and high-cycle environments found in manufacturing, fabrication shops, and industrial maintenance. The ASME B18.8.2 standard ensures dimensional conformance for interchangeable fitment in standard reamed holes.

Key Features

• Alloy steel construction, Material Grade 8 for high strength and wear resistance
• Hardness of 50-58 HRC for reliable performance in demanding applications
• Diameter tolerance of plus or minus 0.0002 inches for close-tolerance fits
• Double-shear breaking strength of 51,000 pounds
• One beveled end and one rounded end per ASME B18.8.2
• Conforms to ASME B18.8.2 fastener standard for dimensional consistency

Compatibility

Designed as a standard precision dowel pin for use in reamed holes requiring a 0.5-inch nominal diameter, conforming to ASME B18.8.2 dimensional requirements.

Installation Notes

Precision dowel pins are typically installed by machinists or maintenance technicians using a press or mallet into pre-reamed holes sized for a light interference or slip fit. Ensure the receiving hole is clean, deburred, and held to the appropriate tolerance before pressing the pin. Do not hammer pins into undersized holes without proper support, as this can damage the bore or distort the pin. Always de-energize and lock out machinery before replacing dowel pins in powered equipment.