
Socket head cap screws have cup points that produce a thin edge that digs into hard surfaces for a secure hold. Rounded head has splined outer circumference with internal hex drive. Use an Allen wrench (hex key) to secure with required torque as needed. Length is measured from underneath the head to the base of the cup point. Size: 1/4 inch-20 X 1/2 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 & dies Thread Type: Coarse, Thread Class: UNC-3A, Point Style: Blunt Specification(s) Met: ASME B18.3 & ASTM F837
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