ChrisNik Mag Nail – 2-1/2″ x 1/4″ (Box of 100) The ChrisNik Mag Nail 2-1/2″ x 1/4″ provides maximum holding strength for deeper control point installations. The hardened magnetized steel design improves durability and detectability, while the zinc-plated coating helps resist corrosion in demanding field environments. Key Features • 2-1/2″ x 1/4″ magnetized survey nail • Hardened steel for long-lasting durability • Zinc-plated corrosion-resistant coating • Magnetic properties for easy detection with locators • Packaged 100 nails per box Ideal For Survey control points, construction staking, and long-term reference points requiring deeper anchoring.