The SQ HEAD SET SCREW 5/16-18 X 1-1/4 from DOUBLE HH MANUFACTURING is a high-quality fastening solution designed for durability and reliability. This set includes 100 pieces, each crafted from robust materials to ensure long-lasting performance. The screw features a 5/16-18 thread size and a length of 1-1/4 inches, making it ideal for various applications in machinery and construction. Its square head design allows for easy installation and secure fastening, while the precision threading ensures a tight fit. This product meets industry standards for quality and performance, making it a trusted choice for professionals and DIY enthusiasts alike.