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

Product Description

The DE-STA-CO 307-USS is a manual hold-down toggle clamp built for horizontal clamping applications that demand corrosion resistance and reliable holding force. Rated at 350 lb (1560 N) of holding capacity, it features a U-bar design with a fixed spindle and a flanged base for secure, four-point mounting. The clamp is constructed entirely of stainless steel with a zinc finish coating, making it well suited for wash-down environments, food processing areas, or any setting where standard carbon steel would be at risk. A red T-handle provides a clear visual indicator and positive grip during operation. Licensed machinists, fixture builders, and production line technicians are the primary installers of this clamp.

This clamp is used in horizontal hold-down applications across manufacturing, assembly fixturing, welding, and light fabrication environments. Its compact overall length of 3.61 inches and overall height of 2.36 inches make it a practical choice for tight fixture layouts. The 92-degree bar opening and 173-degree handle movement allow for quick workpiece loading and release. The included spindle (5/16-18 thread, 2.5 inches long) with two nuts and two washers provides adjustable clamping height out of the box, with 0.75 inches of spindle travel to accommodate workpiece variation.

Key Features

• 350 lb (1560 N) holding capacity for dependable clamping force in horizontal applications
• Full stainless steel construction with zinc finish coating for corrosion resistance
• U-bar style with fixed spindle, 92-degree bar opening for fast workpiece access
• 173-degree handle movement with red T-handle for positive, visible engagement
• Flanged base with four mounting holes sized at 0.28 inches diameter for rigid fixture mounting
• Includes spindle, two nuts, and two washers; spindle thread size 5/16-18

Compatibility

Designed as an OEM-style replacement or direct-install hold-down toggle clamp for horizontal fixturing applications requiring a flanged base, U-bar configuration, and stainless steel construction.

Installation Notes

Installation is typically performed by machinists or fixture technicians using standard hand tools. The flanged base should be mounted to a flat, rigid surface through all four mounting holes to achieve rated clamping capacity. Confirm the spindle thread engagement and spindle travel are adjusted to match workpiece height before putting the clamp into service. Do not exceed the rated holding capacity of 350 lb, and inspect the toggle linkage and spindle hardware regularly for wear in high-cycle applications.