The Machine Key 1/4 x 1/4 x 2-3/8" Form B is a precision-engineered undersized key made from stainless steel 300, designed for reliable shaft and hub connections. With dimensions of 1/4" x 1/4" x 2-3/8", it fits standard keyways, ensuring a secure fit. This key is resistant to corrosion and wear, making it ideal for use in various industrial applications, including machinery and automotive systems. It meets ANSI standards for quality and performance, providing a dependable solution for power transmission and mechanical integrity.