17 mm Metric Hex Key helps replace a rounded or missing metric key before the socket in the fastener is damaged. The ISO 2936 width band is 17.00 / 16.89 mm, sized just under nominal so the key can enter an in-tolerance socket and bear on the flats.

Robotics and automation cells commonly keep dedicated metric keys near guards, tooling, sensors, and changeover points. This family supports the metric side of the catalog, including socket-drive cap screws, flat heads, buttons, shoulders, and set screws.

Review the 17 mm size and ISO 2936 max/min width data against the print before ordering. Cold Headers supports exact-size sourcing when a larger metric key is missing from ordinary shop sets. Keeping the driver as a loose single size helps replace the exact tool without buying a full set.

Technical Highlights

• Style: L-shaped metric hex key
• Width Across Flats: 17 mm (17.00 / 16.89 mm)
• Drives: drives M20 metric socket head cap screws
• Dimensional Standard: ISO 2936

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