Description:

Size: 1/4 inch-28 X 1 inch. Hex (Allen) Drive. Installs using an Allen wrench. Can be used in tight spaces where there may not be room for a socket tool or wrench. Often used in machinery, tools and dies. Thread Type: Fine, Thread Class: UNF-3A, Point Style: Blunt. Specification(s) Met: ASME B18.3 and ASTM A574.