Hook Clamp Assemblies Moderate to heavy-duty holding power in close quarters. When released, the hook clamp swings quickly and easily out of the way for fast maneuvering of work. Spring-loaded shank for speedy clamp release. • Material: Cast Steel Body, 4140 • Finish: Black Oxide • Heat Treat: Rc 42-46 • Stud: Furnished Alternative to the above assembly, features ush-mounted socket screw instead of acorn nut. Designed for limited space applications and moderate holding power. • Material: Cast Steel Body, 4140 • Finish: Black Oxide • Heat Treat: Rc 42-46 • Screw: Furnished Hook Clamp Assemblies Part Number A Stud Size B C D E F G H J K Wt. (lbs) Max. Torque (Ft/lbs) 41901* 11/16 5/16-18 x 2 1/2 7/8 .624/.625 3/8 1 3/8 5/16 3/4 5/8 3/8 .21 25 41908 1 3/8-16 x 4 1 5/8 .874/.875 9/16 2 1/4 3/4 1 1/4 3/4 5/8 .59 40 41902* 1 1/2-13 x 4 1 5/8 .874/.875 9/16 2 1/4 5/8 1 1/8 15/16 5/8 .64 100 41903 1 7/16 5/8-11 x 5 1 13/16 1.124/1.125 7/8 2 3/4 7/8 1 3/8 1 3/16 3/4 1.38 180 *Conforms to TCMA Part Number A Cap Screw B C D E F G H K Wt. (lbs) Max. Torque (Ft/lbs) 41904* 11/16 5/16-18 x 1 3/4 7/8 .624/.625 3/8 1 3/8 1/4 5/8 3/8 .14 25 41905* 1 3/8-16 x 3 1 5/8 .874/.875 9/16 2 1/4 5/8 1 1/16 5/8 .44 40 41907 1 1/2-13 x 3 1 5/8 .874/.875 9/16 2 1/4 5/8 1 1/8 5/8 .47 100 41906 1 7/16 5/8-11 x 3 1/2 1 13/16 1.124/1.125 7/8 2 3/4 13/16 1 9/16 3/4 1.00 180 *Conforms to TCMA WORKHOLDING COMPONENTS WORKHOLDING COMPONENTS workholding solutions Phone: 877-426-2504 | Fax: +1 216-481-6193 | E-mail: info@jergensinc.com | www.jergensinc.com 267
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