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Maximum Capacity 4-5/8"
Minimum Capacity 1-3/4"
Depth Center Of Screw To Back 2-7/16"
Screw Diameter 1"
Model # 78-040
Style Heavy Duty Machinist
Throat Depth|Decimal Diameter 2-7/16"
Armstrong Industrial Hand Tools have a heritage of Made in the USA since four brothers founded the company in 1890. This Armstrong brand product is built from premium materials and workmanship ensuring unequalled strength, toughness, and durability. Product Type: Heavy Duty Pattern C-Clamp Capacity Maximum (Inch): 4-5/8 Capacity Minimum (Inch): 1 Depth of Throat from Center of Screw (Inch): 2-7/16 Thread Size (Inch): 1-8 Length of Screw (Inch): 7-1/16 Minimum Proof Test (lbs): 20,000 Full Length Forcing Screw: No Finish: Black Oxide US Federal Specification: GGG-C-406d Replacement Forcing Screw: 95-389 Forcing Screw Threads: Standard V Threads.