Parallel screw clamp Bessey PA70, jaw capacity 87 mm, size 4

The Bessey PA70 parallel screw clamp, size 4, offers a jaw capacity of 87 mm and is engineered for tasks requiring uniform clamping force. Its parallel jaw design maintains even pressure across the clamped surfaces to reduce distortion and improve alignment during woodworking, gluing, assembly and light metalwork. The compact frame and screw adjustment allow precise positioning and secure holding of workpieces and fixtures.

Advantages

The parallel jaw mechanism delivers consistent, parallel pressure across the clamped area, minimizing movement and uneven contact. The screw drive provides fine control for gradual tightening and reliable holding force. A compact and robust construction ensures durability and stable performance in repeated clamping operations. The clamp’s size and jaw capacity make it suitable for medium-duty tasks while remaining easy to handle and position.

Suitable for

• Woodworking joinery and panel gluing
• Assembly of components and fixtures
• Light metalworking and soldering tasks requiring steady hold
• Precise positioning during finish or routing operations

Key specifications

• Jaw capacity: 87 mm
• Design: parallel jaws for even pressure distribution
• Operation: screw mechanism for controlled tightening
• Size classification: size 4 (medium-duty clamping)
• Construction: compact frame optimized for stability and handling

How to use

Place the clamp so that the parallel jaws align with the surfaces to be held. Turn the screw handle gradually until the jaws contact the workpiece, then continue tightening to the required holding force while monitoring alignment to prevent overclamping. For glued joints, apply pressure evenly and maintain clamping until the adhesive has sufficiently cured. Release by turning the screw in the opposite direction and reposition as needed.

Usage recommendations

Use the clamp on clean, flat contact areas to ensure maximal grip and avoid marring delicate surfaces; consider protective pads when clamping finished or soft materials. Apply gradual screw pressure rather than sudden torque to maintain alignment and prevent damage to the workpiece or the clamp.