De-sta-co 307-U Toggle Clamp 350 Lb Horizontal U-bar

Product Description

The DE-STA-CO 307-U is a manual hold-down toggle clamp designed for horizontal clamping applications in production, assembly, and fixturing environments. Built from carbon steel with a zinc finish coating, it delivers a holding capacity of 350 pounds (1,560 N) with a fixed-spindle U-bar configuration. The T-handle features a 173-degree handle movement arc, and the bar opens to 92 degrees for quick part loading and unloading. This clamp installs on a flanged base secured by four mounting holes and includes one spindle, two nuts, and two washers. Machinists, tool and die technicians, and fixture builders are the primary installers.

The 307-U is suited for light-duty workholding on jigs, fixtures, and assembly stations where a compact footprint and reliable repeatable clamping force are required. Its horizontal handle orientation keeps the actuation profile low, making it practical in tight fixture layouts. The flanged base allows direct surface mounting to fixture plates or workbenches. The M8x1.25 spindle thread and 0.75-inch spindle travel provide fine adjustment of clamping height to accommodate part variation.

Key Features

• 350 lb (1,560 N) holding capacity for reliable workholding in production environments
• Horizontal T-handle with 173-degree handle movement for fast, consistent actuation
• U-bar with 92-degree opening angle allows quick part loading without obstruction
• Fixed spindle with M8x1.25 thread and 0.75-inch travel for precise height adjustment
• Zinc-coated carbon steel construction resists corrosion in shop environments
• Flanged base with four mounting holes for secure, stable fixture mounting

Compatibility

Designed as an OEM-style hold-down toggle clamp for use in standard fixturing, jig-building, and assembly workholding applications requiring a horizontal U-bar clamp with a flanged base mount.

Installation Notes

Installation is typically performed by machinists or fixture technicians using standard hand tools. Secure the flanged base to a flat, rigid mounting surface using fasteners appropriate for the load. Verify spindle height adjustment before final tightening to ensure proper clamping force on the workpiece. Inspect the clamp for smooth over-center action and confirm the bar locks fully before placing the assembly into production service.