Bessey parallel screw clamp size 1, 36 mm, model BY PA28

Bessey parallel screw clamp size 1, 36 mm, model BY PA28 is a precision woodworking clamp designed to apply stable, parallel clamping pressure with a screw-driven mechanism. With a 36 mm throat depth and size 1 clamping capacity, this clamp is intended for accurate alignment and holding of panels, frames and assemblies during gluing, drilling and general workshop operations. The construction ensures even pressure distribution across the jaws to reduce workpiece distortion and maintain alignment during joinery and cabinetmaking tasks.

Advantages

The parallel screw clamp provides a consistent, screw-controlled closing force that allows gradual tightening and precise pressure adjustment. Its 36 mm throat depth gives access to moderate-distance joints while maintaining a compact form factor. The clamp’s parallel jaw action keeps clamped surfaces aligned, reducing the need for repositioning and ensuring better glue joint contact. Built for workshop use, it combines controlled pressure with a robust mechanism suited to repeated operations.

Suitable for

• Clamping panels and edge-joined boards during gluing
• Holding frames and cabinet parts for assembly and screw insertion
• Precision joinery where parallel alignment is required
• Drilling and routing operations that require stable workpiece positioning
• General workshop tasks needing controlled clamping pressure

Key specifications

• Clamping size: Size 1 capacity suitable for light to medium woodworking tasks
• Throat depth: 36 mm for access to moderate-distance joints
• Clamping mechanism: Screw-driven for controlled, adjustable pressure
• Jaw action: Parallel jaws to maintain even pressure and alignment
• Typical use: Woodworking, cabinetmaking, joinery and assembly tasks

How to use

Position the workpieces between the clamp jaws so the mating surfaces are aligned. Turn the screw handle to bring the movable jaw into contact with the workpiece, then tighten gradually until the required clamping pressure and alignment are achieved. Ensure even pressure across the joint and avoid over-tightening which could damage the workpiece. For multiple clamps, tighten in sequence along the joint to maintain uniform pressure and alignment.

Usage recommendations

Use protective pads or scrap wood between the jaws and finished surfaces to prevent marking. Inspect the screw mechanism periodically for smooth operation and remove dust or glue residue after use. For optimal results in gluing operations, apply clamps at regular intervals and alternate tightening to ensure even glue line compression.