Kingarcher Grade 2 Shear Bolts for Rotary Cutters and Farm Implements, 1/2”-13 x 3-1/2”, with Nylon Lock Nuts, 6-Pack

These Grade 2 shear bolts with nylon-insert lock nuts are designed to protect rotary cutters and farm equipment during operation. Each kit includes 6 bolts and 6 matching nuts, providing a convenient replacement set when maintenance is needed. The bolts measure 1/2”-13 thread x 3-1/2” length and are paired with correctly sized nuts to ensure a proper fit. Made from carbon steel with a zinc-plated finish, they offer added resistance to rust and wear. Head markings may vary and some bolts may show lines on the head, but all are tested to meet Grade 2 shear specifications and are engineered to shear under overload. Nylon-insert lock nuts help resist loosening from vibration, keeping the connection secure during operation. Acting as a mechanical safety fuse, these bolts are intended to break when the blade strikes a hard object, protecting gearboxes and drivelines. Please note: they are not suitable for towing, lifting, or other load-bearing applications.

• Complete Set – Includes 6 shear bolts and 6 nylon-insert lock nuts, packaged together for convenient replacement.
• Standard Size – Each bolt measures 1/2”-13 thread × 3-1/2” length, with nuts sized to match; please confirm dimensions before purchase.
• Durable Material – Constructed from Grade 2 carbon steel with a zinc-plated finish that provides added resistance to rust and wear. Head markings may vary due to manufacturing, but all bolts meet Grade 2 shear specifications.
• Secure Installation – Nylon-insert lock nuts help resist loosening under vibration, keeping the bolts securely in place during operation.
• Correct Use – Designed as shear bolts for rotary cutters and farm equipment, serving as a safety fuse; not intended for towing, lifting, or other load-bearing applications.