Professional-grade 3/8" drive 7/16" torque adaptor with locking hole system, 500 in-lb capacity, and double hex design for restricted access applications
The Snap-on Tools@Height 3/8" Drive 7/16" Non-Spline Torque Adaptor (Model THFRDH141) is a precision-engineered tool designed for professional mechanics and technicians who require reliable torque control in restricted spaces. This adaptor features a robust locking hole mechanism on all four sides, working in conjunction with a specialized pin system to prevent misalignment of sockets, adaptors, and extensions during critical fastening operations. The double hex (12-point) configuration enables socket engagement with single hex fasteners every 30 degrees rather than every 60 degrees, providing superior access in confined working areas where standard tools cannot reach.
Crafted from special alloy steel and heat-treated for maximum strength and durability, this adaptor delivers a working torque capacity of 500 in-lb, making it suitable for demanding industrial applications including aviation, aerospace, military defense, oil and gas operations, power generation, railroad maintenance, and general heavy-duty fleet work. The nickel-chrome finish provides excellent corrosion resistance and ensures easy cleaning and maintenance. The adaptor's radius-edged design prevents damage and nicks during use, while the center-to-center length measurement facilitates accurate torque calculations for precise fastening applications.
This Tools@Height adaptor represents the pinnacle of Snap-on's commitment to quality and safety. With its locking hole and pin combination system, it significantly reduces the risk of tool disengagement and misalignment during high-stakes fastening operations. The 2-inch center-to-center length and carefully engineered dimensions make this tool an essential component for professionals who demand precision, reliability, and safety in their torque control applications.
Key Features
- Locking hole on all four sides with precision pin combination system to prevent socket and adaptor misalignment
- Double hex (12-point) configuration for socket engagement every 30 degrees instead of 60 degrees, enabling superior access in restricted spaces
- Precision-crafted from special alloy steel with heat treatment for optimum strength and durability
- Nickel-chrome finish provides excellent corrosion resistance and easy cleaning
- Radius-edged design resists damage and nicks during use
- 500 in-lb working torque capacity suitable for demanding industrial applications
- Center-to-center length measurement facilitates accurate torque calculations
- Larger size construction provides enhanced strength for heavy-duty use
Technical Specifications
| Specification |
Value |
| Model | THFRDH141 |
| Drive Size | 3/8" Drive |
| Socket Size | 7/16" |
| Adaptor Type | Non-Spline Torque Adaptor |
| Working Torque Capacity | 500 in-lb |
| Head Diameter at Wrench End (Dimension A) | 0.655 inches |
| Head Diameter at Square End (Dimension B) | 0.750 inches |
| Head Depth at Wrench End (Dimension C) | 11/32 inches |
| Head Depth at Square End (Dimension D) | 7/16 inches |
| Center-to-Center Length (Dimension E) | 2 inches |
| Weight | 0.09 lb (0.04 kg) |
| Material | Special Alloy Steel |
| Heat Treatment | Heat-treated for optimum strength and durability |
| Finish | Nickel-Chrome |
| Socket Configuration | Double Hex (12-Point) |
| Locking System | Locking hole on all four sides with precision pin combination |
| Edge Design | Radius edges to resist damage and nicks |
| Recommended Applications | Aviation, Aerospace, Military & Defense, Oil and Gas, Power Generation, Railroads, General Industry, Heavy Duty & Fleet Maintenance |
| Brand | Snap-on Tools@Height |
| List Price | $56.75 |
