Bessey STC-HA20 Toggle Clamp 450 Lb Horizontal U-bar

Product Description

The BESSEY STC-HA20 is a manual hold-down toggle clamp designed for horizontal clamping applications in fabrication, welding, woodworking, and assembly fixtures. Built from carbon steel with a straight red handle, it delivers a 450 lb holding capacity through a U-bar mechanism that locks workpieces firmly in place. The flanged base provides four-point mounting for secure attachment to jigs, tables, and fixtures. A pressure pad cap is included to protect workpiece surfaces. At 0.52 pounds and a compact overall length of 6.57 inches, the STC-HA20 is well suited for tight fixture layouts where repeatable clamping force is required.

This clamp is used in light to medium industrial and shop environments where consistent hold-down force is needed on a fixed workstation. Typical applications include welding positioners, CNC routing fixtures, woodworking jigs, and assembly tables. The horizontal handle orientation makes it practical in setups where vertical clearance is limited. The spindle is included, allowing on-site adjustment of clamping height to match workpiece thickness without sourcing additional hardware.

Key Features

• 450 lb holding capacity for reliable workpiece retention in high-repetition clamping tasks
• U-bar style with included pressure pad cap protects workpiece surfaces during clamping
• Flanged base with 1 inch mounting hole spacing on both length and width axes for secure fixture mounting
• Horizontal handle orientation suited for low-clearance fixture setups
• Carbon steel construction throughout for durability in shop environments
• Spindle included — adjustable clamping height without additional parts

Compatibility

Designed as an OEM-style hold-down toggle clamp for use in welding, woodworking, and general fabrication fixtures requiring horizontal clamping with a flanged base mount.

Installation Notes

Installation is typically performed by machinists, fabricators, or fixture builders using standard hand tools. Mount to a flat surface using fasteners through the flanged base holes — confirm mounting hole diameter of 0.22 inches when selecting hardware. Before adjusting the spindle or repositioning the clamp on a live fixture, ensure all power to associated machinery is off and the work area is clear. Do not exceed the rated 450 lb holding capacity.