1/4 HEX SOCKET SHOULDER SCREW1/4 HEX SOCKET SHOULDER SCREW 74002,25 PER BOX,.625"LENGTH UNDER HEAD, #10-24, 1/8 HEX KEY 1/4" Nominal Shoulder Dia., 5/8" Shoulder Length, .375"-.357" Max/Min Head Dia., .188'-.177" Max/Min Head Hgt., 1/8" Hex Socket Key Size, 10-24 Basic Thread Size, .375" Thread Length. These are a socket head shoulder screws, but they are also called shoulder bolts or stripper bolts, and are made to ASME B18.3 Standards. They have a tensile strength of 140,000 PSI minimum in the shoulder and thread neck area. They also have a minimum of 84,000 PSI shear strength in the thread neck area. And they have a broad Rockwell "C" hardness of 32-43 on the surface. These bolts are for rotation or sliding applications, such as pulley shafts, die making, punch design, bearing pins and especially in pivot point area's.
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