QJO20A - Williams - 5/8 IN WR HEAD

Williams QJO20A 5/8" Open‑End Wrench Head – J‑Shank
The Williams QJO20A 5/8" Open‑End Wrench Head is engineered for industrial technicians who need dependable torque accuracy, excellent accessibility, and long‑lasting strength when working with small imperial fasteners. Built with a secure J‑shank interface, this wrench head attaches firmly to Williams torque wrenches and torque multipliers—providing stable, repeatable torque performance in demanding environments.

Its slim open‑end design makes it ideal for reaching fasteners located in tight, recessed, narrow, or obstructed areas where traditional box‑end heads cannot reach. Made from premium alloy steel and precision‑machined for consistent performance, the QJO20A resists deformation, wear, and rounding under continuous torque loads.

Well‑suited for maintenance teams across utilities, manufacturing plants, industrial facilities, heavy‑equipment shops, and oil & gas operations, this wrench head delivers reliable, professional‑grade performance day after day.

Key Features

• 5/8" Open‑End Wrench Head – Ideal for small imperial fasteners used on machinery, pumps, fixtures, electrical panels, and mechanical systems.
• Secure J‑Shank Attachment – Provides rigid, vibration‑resistant engagement with Williams torque systems for precise torque transmission.
• Slim, High‑Access Profile – Reaches bolts that are recessed, obstructed, or located in tight spaces where box‑end heads cannot operate.
• Premium Alloy Steel Construction – Ensures long‑term durability and resists rounding, wear, and distortion during heavy torque applications.
• Precision‑Machined Fit – Provides stable, consistent fastener engagement and accurate torque application.
• Industrial‑Grade Toughness – Suitable for refineries, power plants, utilities, manufacturing facilities, mining, and heavy‑equipment maintenance.

Ideal Applications

• General industrial maintenance
• Machinery repair & equipment servicing
• Utilities & power‑generation mechanical operations
• Oil & gas field and refinery service
• Pump, valve, and flange work
• Tight‑access fastening requiring reliable torque control