SILLCOCK KEY - SPEC 5/16

Some loose-key valves use a specific 5/16" square stem, and this single-size sillcock key is broached to seat cleanly on that stem for sure operation. A dedicated key means the socket is a precise match rather than a loose fit, so it drives a stiff stem fully without rounding it or slipping under load. The solid metal body gives the leverage to break a seized valve free and the durability to do it season after season. Kept on the truck or in the shop, it is the right tool for buildings standardized on 5/16" loose-key hardware.

Key Features:

• Exact 5/16" Fit -- Broached socket matches the 5/16" square stem for a sure, non-slip grip.
• Solid Metal Build -- One-piece metal body delivers the torque to free stiff or seized stems.
• Protects the Stem -- Precise square broach seats fully to avoid rounding the valve corners.
• Handle-Less Valves -- Operates loose-key sillcocks and hydrants that ship without handles.
• Long Service Life -- Durable construction stands up to repeated seasonal use.

Where to Use:

• Building maintenance -- Operating 5/16" loose-key hose bibs and hydrants on a property.
• Seasonal service -- Opening and draining exterior valves during winterization.
• Utility access -- Controlling dedicated 5/16" spec valves in mechanical areas.