Introducing our Sems Machine Screw, a versatile and essential fastening solution for a wide range of applications. Crafted from durable steel with a corrosion-resistant zinc finish, this screw offers both strength and longevity. Featuring a convenient external tooth washer, it ensures secure and stable installation. The hex washer head design allows for easy tightening with a slotted drive type, making assembly a breeze. With a thread size of 1/4-20 and a length of 0.5 inches, it meets ASME B18.13 specifications for quality and performance. Rest assured, this product is RoHS compliant, making it environmentally friendly. Trust in the reliability and efficiency of our Sems Machine Screw for all your fastening needs.