Upgrade your electrical panel installation with Square D Load Center Screws, designed for secure and reliable mounting of your circuit-breaker-panels and electric panel boxes. This set includes 20 stainless steel screws, each measuring 1/2 in x 1 in, ideal for use with modern load center breaker boxes, 100 amp panels, 200 amp breaker panels, and 3 phase load centers. The square drive system ensures easy installation and a tight fit, reducing the risk of stripping during use. These screws are compatible with a wide range of electrical panel boxes and electric panels, making them a versatile choice for both residential and commercial projects. The durable stainless steel construction resists corrosion, providing long-lasting performance in demanding environments. With a compact package size and lightweight design, these screws are easy to store and transport to any job site. Whether you are upgrading a 100amp sub panel, installing a 125 amp main breaker panel, or maintaining a 4 space circuit breaker panel, these screws deliver the strength and reliability you need for safe and efficient electrical box installations. No batteries required.