Williams Pre-Stressing / Post Tensioning Systems consist of high tensile steel bars available in five diameters from 1" (26 mm) to 2-1/2" (65 mm) with guaranteed tensile strengths to 778 kips (3460 kN). They are provided with cold rolled threads over all or a portion of the bar's length. All tension components for the systems are designed to develop 100% of the bar strength. All components of the systems are designed and manufactured in the United States. Williams All-Thread-Bar systems have been field proven around the world.

• Transverse Post Tensioning
• Longitudinal Post Tensioning
• Pile Test Anchors
• Rock Anchors
• Concrete Ties
• Hanger Bolts
• Jacks
• Structural Steel Frame Ties
• Shear Pins
• Bridge Retrofit Applications
• Pre-Stressed Block and Brick Construction
• Seismic (Earthquake) Restrainer Systems
• Ground Anchors and Soil Nails
• Wood Structure Post-Tensioning Bars
• Temporary High Strength Connections
• Tower Base Plate Anchor Bolts
• Sheet Pile Ties and Tie-Backs
• High Strength Concrete Reinforcement Bars
• Multiple Corrosion Protection Anchors

Example of Post-Tensioning in Precast Concrete

Before Casting

After Casting