0.050 Short Arm Alloy Steel Hex Key supports the socket-screw system by matching a 0.050 in. width across flats to the working tool. The ASME B18.3 width band is 0.0490-0.0500 in.; the key is held just under nominal so it enters an in-tolerance socket and bears on the flats.

Heavy equipment and large socket cap screws at the upper end call for wider keys that are harder to restock loose. The Short Arm key is the compact member of the pair, while the Long Arm version covers deeper socket access.

For industrial purchasing and maintenance teams, Cold Headers helps match width, series, and catalog identity. Review the 0.050 in. width, Short Arm format, short-leg length, and arm length before ordering. This width is part of the hard-to-find end of the range, where loose-driver restocking is often the real problem.

Technical Highlights

• Style: L-shaped hex key, Short Arm
• Material: Alloy Steel
• Width Across Flats: 0.050 in. (0.0490-0.0500 in.)
• Short-Leg Length: 0.438-0.625 in.
• Arm Length: 1.562-1.750 in.
• Dimensional Standard: ASME B18.3

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.