Keep your valuables and installations secure with these 5/16-18 Stainless Steel Break-Away Shear Nuts. This pack of 12 security nuts is specially designed to prevent unauthorized removal, making them an ideal solution for anti-theft applications. Each nut features a unique two-part design — once tightened to the required torque, the outer hex head shears off, leaving a smooth, tamper-resistant surface that cannot be gripped or removed with standard tools. Constructed from durable stainless steel, these shear nuts offer excellent resistance to corrosion and wear, ensuring long-lasting performance in both indoor and outdoor environments. Whether you're securing street furniture, public fixtures, or any installation where tamper resistance is critical, these break-away nuts provide reliable and robust protection. The 5/16-18 thread size ensures compatibility with a wide range of standard bolts and fasteners. Stock up with this convenient 12-piece pack and give your installations the security they deserve.