The part number 1A-2029 refers to a Caterpillar Hex Head Bolt, designed for use in heavy-duty machinery and industrial applications. Here's a full breakdown of its specifications and features:

Description & Function

• Type: Hex Head Bolt
• Thread Size: 3/8 16 UNC
• Length: 1 1/8 inches
• Grip Length: 0.157 inches
• Material: SAE J429 Grade 8 (Carbon Steel, Alloy Zinc)
• Coating: Zinc Phosphate + Oil (RoHS compliant)
• Thread Direction: Right-hand
• Thread Class: 2A
• Head Style: Hexagon
• Head Height: 0.281 inches
• Width Across Flats: 0.562 inches