Grade 2 Shear Bolts for Rotary Cutters 1/2″ x 3-1/2″ 5 Pack

These Grade 2 shear bolts are designed to secure rotary cutter blades and prevent equipment damage from blade jam or impact. Each pack includes 5 bolts and 5 nylon lock nuts sized 1/2″ diameter by 3-1/2″ length.

The bolts are manufactured from sturdy Grade 2 carbon steel with a Zinc (Cr+3) compliant finish that resists rust and corrosion for extended service life. The nylon lock nuts feature increased friction to keep the fastener locked in position, minimising loosening from vibration during operation.

These shear bolts work on most rotary cutters, brush cutters, tractor gearboxes, and similar equipment. They’re engineered to act as a safety mechanism—when the blade strikes an obstacle, the shear bolt breaks intentionally rather than damage the gearbox or transmission, making them an economical protection component.

The half-thread design and universal sizing make installation straightforward on standard rotary cutter models. Keep a spare pack on hand for field repairs and maintenance.

Before purchasing, verify your equipment’s bolt specifications against the product dimensions. For exact compatibility with your model, check the size chart or your cutter’s manual.

Order your 5-pack today and ensure your rotary cutter is properly protected.