Apex 80420 Hex Bit Socket 3/8 Inch Drive 5/16 Inch Sae

Product Description

The APEX 80420 is a 5/16 inch SAE hex bit socket designed for use with 3/8 inch drive ratchets and impact-rated hand tools. The base socket is constructed from heat-treated alloy steel for durability under repeated torque loads. The hex bit insert is machined from S2 steel, a high-strength tool steel commonly specified for drive bits where fastener contact stress is high. At 1.85 inches in length and 0.14 pounds, this socket fits into tight fastener locations without adding unnecessary reach. It is suited for mechanics, industrial maintenance technicians, and field service professionals who work regularly with internal hex fasteners.

This bit socket is used wherever 5/16 inch hex head fasteners appear in mechanical assemblies, HVAC equipment, electrical enclosures, and general industrial applications. The 3/8 inch drive interface is the standard mid-range drive size found on most professional ratchet sets, making this socket a direct drop-in for existing drive sets. It is sold individually, allowing technicians to replace a single worn or lost socket without purchasing a full set.

Key Features

• S2 steel hex bit insert for high-strength fastener engagement
• Heat-treated alloy steel base socket for extended service life
• 3/8 inch drive interface compatible with standard ratchets and extensions
• 5/16 inch SAE hex size for internal hex fasteners
• Compact 1.85 inch length for access in confined spaces

Compatibility

Designed as an OEM-style replacement or addition for 3/8 inch drive hex bit socket sets used with standard ratchets, breaker bars, and torque wrenches accepting 3/8 inch square drive tooling.

Installation Notes

Installation is performed by hand tool technicians and mechanical service professionals. Ensure the bit socket is fully seated on the drive before applying torque to prevent slippage or fastener damage. Inspect the bit tip for wear before use, as a worn hex profile can round internal fastener recesses. Store with other drive sockets to prevent tip damage from contact with harder tooling.

Technical Specifications

• Drive Size: 3/8 inch
• Hex Bit Size: 5/16 inch SAE
• Length: 1.85 inches
• Weight: 0.14 pounds
• Bit Material: S2 Steel
• Base Socket Material: Heat-Treated Alloy Steel
• Unit of Measure: Each

Standard Information

• Brand: APEX
• Manufacturer Part Number: 80420