Torque Adapter 20 mm 12 Point Box End with Y Shank - Williams

The Williams QYXM20A Torque Adapter is engineered for technicians who require accurate, repeatable torque application on 20 mm fasteners used in industrial machinery, hydraulic systems, mechanical assemblies, and heavy‑equipment service work.

Its 12‑point (double‑hex) box‑end head provides excellent accessibility and fastener alignment, offering more engagement angles than a traditional 6‑point head. This makes it easier to position the adapter in tight, obstructed, or limited‑swing environments where precise torque is still essential.

The full‑wrap box‑end geometry ensures complete surface engagement around the fastener, greatly reducing rounding, increasing grip stability, and ensuring consistent torque transfer under load. This design provides a major advantage over open‑end torque adapters, especially in high‑torque or vibration‑prone applications.

The rugged Y‑Shank interface delivers a secure, rigid connection to compatible Williams torque wrench systems. Built from premium high‑strength alloy steel, the QYXM20A is designed for extreme torque cycles, harsh industrial environments, and long‑term durability without loss of accuracy.

Key Features

• Size: 20 mm
• Type: Torque adapter / torque head
• Head Style: 12‑Point (Double‑Hex) Box End
• Shank Style: Y‑Shank
• Multipoint design improves engagement in confined spaces
• Full‑surface contact reduces rounding and enhances torque accuracy
• Precision‑machined for stable, repeatable torque application
• High‑strength alloy steel ensures long service life
• Ideal for industrial maintenance, hydraulic system repair, mechanical service, and heavy‑equipment applications