Proto J5214SPL Spline Socket 3/8 in Drive 14 Spline 7/16 in Hex

Product Description

The PROTO J5214SPL is a spline-drive socket designed for use with 3/8 inch drive ratchets, breaker bars, and extensions. It accepts a 7/16 inch hex fastener and features a 14-spline, 12-point configuration that provides multiple engagement positions on fastener heads, reducing the chance of rounding. The socket meets Federal Specification GGG-W-641e and ANSI Specification B107.1, making it suitable for government, military, and commercial procurement. Weighing 0.06 pounds, it is a compact, lightweight tool appropriate for technicians working in tight spaces across HVAC, plumbing, electrical, and general mechanical service applications.

This socket is suited for professional tradespeople who require a standards-compliant, 3/8 inch drive spline socket for use on 7/16 inch hex fasteners. The 14-spline, 12-point design is commonly used in automotive, mechanical, and building-systems maintenance where precise torque application on hex-head fasteners is required. It is appropriate for residential and commercial service work where GGG-W-641e and ANSI B107.1 compliance is specified or preferred.

Key Features

• 3/8 inch drive size compatible with standard ratchets, extensions, and torque wrenches
• 14-spline, 12-point configuration for multiple fastener engagement positions
• Fits 7/16 inch hex fasteners
• Meets Federal Specification GGG-W-641e and ANSI Specification B107.1
• Lightweight at 0.06 pounds for use in confined work areas

Compatibility

Designed for use with 3/8 inch drive ratchets, torque wrenches, and extensions accepting standard square-drive sockets. Fits 7/16 inch hex-head fasteners requiring a 14-spline socket.

Installation Notes

Install and remove this socket only with the drive tool fully seated to prevent slippage or fastener damage. Ensure the drive tool is rated for the torque being applied. Inspect the socket for cracks or wear before each use and remove from service if damage is found. No special certifications are required to use hand sockets, but follow applicable workplace safety and torque specifications for the fastener application.