The Atlas Hex HD set screws are high-quality M6x30 Grade 8.8 yellow zinc screws designed for industrial use. With a hex-key drive style and a 30mm thread size, these screws feature a durable steel construction with a hex head finish for easy installation. This pack includes 250 pieces, making it ideal for various fastening applications in a professional setting. The Atlas brand ensures reliable performance and long-lasting durability, making these screws a valuable addition to any hardware collection. New and in excellent condition as shown in the pictures