QYXM21A - Williams - 21 mm Box‑End Torque Adapter with Y‑Shank

The Williams QYXM21A Torque Adapter is engineered for dependable and repeatable torque application on 21 mm fasteners typically found in industrial machinery, hydraulic equipment, mechanical assemblies, and heavy‑equipment maintenance.

Its box‑end design provides full‑wrap fastener engagement, enhancing grip stability, reducing rounding, and ensuring superior torque transfer — making it a far more reliable option than open‑end torque adapters, especially in high‑load or torque‑critical operations.

The rugged Y‑Shank interface offers a secure and rigid connection to compatible Williams torque wrench systems, ensuring proper alignment and consistent torque output whether using manual or electronic torque tools. Crafted from premium high‑strength alloy steel, the QYXM21A is built to endure harsh working conditions, extreme torque cycles, and daily industrial wear without loss of performance.

This torque head is ideal for technicians performing industrial maintenance, mechanical repair, hydraulic service, equipment assembly, and field‑service operations requiring precise torque and long‑term durability.

Key Features

• Size: 21 mm
• Type: Torque adapter / torque head
• Head Style: Box End (full‑contact)
• Shank Style: Y‑Shank
• Full‑contact geometry improves torque accuracy and reduces rounding
• Precision‑machined for repeatable, consistent torque application
• High‑strength alloy steel for maximum durability
• Compatible with Williams Y‑Shank torque tool systems
• Excellent for industrial, mechanical, hydraulic, and heavy‑equipment applications