The CUP-POINT SOCKET SET-SCREW 1/4"-20 X 1/4" is a headless screw with a hex drive on one end and a cup-shaped indentation on the other, making it ideal for secure fastening in tight spaces. With a Rockwell hardness rating of C45-53, this set screw offers durability and resistance to wear. Its dimensions of 1/4"-20 diameter and 1/4" length ensure compatibility with standard sockets, making it a versatile choice for industrial and automotive applications where precision is critical.