980996 Shear Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shear screw weighing 0.002 kg. A shear screw is designed to break off at a set point during tightening, so an ordinary screw is not a substitute for it under any circumstances. No thread size is published, so match the old fastener or order against the assembly.

⚙️ Key Features

• 0.002 kg
• Head shears off at a set tightening torque
• Not interchangeable with an ordinary screw
• Thread size is not published - order by part number

🔌 Function

Clamps its joint and then shears its own head off at a designed torque, leaving a fastener that cannot be undone with a normal tool and that cannot be overtightened.

⚠️ Common Signs of Failure

• Head found still in place, meaning the screw was never tightened to its shear point
• Screw shearing early, leaving the joint under-clamped
• Remains of the shank seized in the thread from corrosion
• The clamped component found loose or able to move

🛠️ Service Notes

• Fit a new shear screw every time; once the head has gone the fastener cannot be re-tensioned or reused
• Never substitute a standard screw - the shear feature is there to fix the joint at a set clamp load and to show it has not been tampered with

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging