HEAVY-DUTY MAGNET PACK: With a 35 lb pull strength, these ceramic round base magnets deliver serious holding power. They are ideal for securing heavy items in homes, workshops, and commercial spaces. VERSATILE APPLICATIONS: These round magnets feature a 0.197" center hole for easy pairing with various fasteners like hooks, knobs, or eyebolts. The strong magnetic base mounts lights, signs, antennas, and more with ease. BUILT TO LAST: Ceramic magnets resist corrosion and won't wear down. Our magnets withstand temperatures up to 400°F and have a nickel-plated finish for extra protection, making them ideal for both indoor and outdoor use. HIGH-QUALITY CONSTRUCTION: Crafted from strontium carbonate and iron oxide, our ceramic (ferrite) magnets are molded, sintered at 2,000°F, precision-ground with a diamond wheel, magnetized, and carefully inspected to ensure reliable performance. MASTER MAGNETICS: We are a USA-based company trusted since 1976 for strength, quality, and performance. Our extensive line of affordable, powerful magnets makes tasks easier in homes, workshops, and industrial spaces.