Paramount PAR37215 Hex Key 7/16 Inch Short Arm

Product Description

The PARAMOUNT PAR37215 is a 7/16-inch short-arm hex key built from Protanium High Torque Steel for demanding fastening applications. It features a hex end tip and a compact short-arm design with an overall length of 4-51/64 inches (4.8 inches), making it well-suited for confined spaces where a standard long-arm key would not clear surrounding hardware. This type of hand tool is a standard in trade toolkits for HVAC, plumbing, electrical, and mechanical service work where socket-head fasteners are common. The gray handle and steel construction are consistent with professional-grade service tools designed for repeated, high-torque use.

This hex key is appropriate for residential and commercial service applications wherever 7/16-inch hex fasteners are encountered. Typical install scenarios include equipment access panel fasteners, motor mounting hardware, valve packing nuts, and other socket-head cap screws found in mechanical systems. The short-arm configuration is especially practical when working inside equipment cabinets, air handler compartments, or tight plumbing chases where swing clearance is limited.

Key Features

• 7/16-inch hex size for direct drive of matching socket-head fasteners
• Short-arm design at 4-51/64 inches OAL suits confined-space service
• Protanium High Torque Steel construction resists torsional stress and deformation
• Hex end tip provides full contact with fastener socket for reduced cam-out
• Gray handle aids visual identification in a mixed tool set
• Single-piece package quantity — no minimum bundle required

Compatibility

Designed for use with 7/16-inch hex socket-head fasteners in standard inch-measurement applications across mechanical, HVAC, plumbing, and electrical service environments.

Installation Notes

This tool is used by licensed HVAC technicians, plumbers, electricians, and general mechanical service professionals. Always de-energize equipment and shut off fluid or gas supplies before loosening or tightening fasteners on live systems. No special certifications are required to use this hand tool, but follow applicable codes — NEC, IFGC, or IPC as appropriate — when performing the underlying service work. Inspect the hex tip for wear or rounding before applying high torque; a damaged tip can damage the fastener socket.