Screw Plate Clamps

Downs' Item# 411

Screw Plate Clamps are used for lifting and positioning steel plates at bending rolls, brakes, shears, drill presses and similar processing operations. They are designed to handle one plate at a time. Placing more than one plate in at one time will result in the clamp not effectively holding the load, which will lead to plate dropping.
They are also extensively used for erecting structural steel, tanks, and performing deck work on ships and other places where a reliable clamp is required. They can be inverted and used as a temporary or semi-permanent hanger for suspending objects from an overhead structure.

Clamps are attached and removed from the plates or other material by using an ordinary wrench. Clamps are properly set when the screw indents into the plate being liftted. When properly set in place on the material, they are not easily displaced by vibration, shocks or bumps incidental to work of this nature.

For satisfactory service, the hardened set screws must be replaced occasionally, as the threads may become damaged or upset and improper clamping action will result.

Item Number Capacity For Plate
Sizes
Jaw
Opening
Weight
411 5,000 LBS 0" to 1" 1 1/8" 21 LBS
412 5,000 0" to 1 1/2" 1 5/8 22
413 5,000 0" to 2" 2 1/8 24
414-3 5,000 1" to 3" 3 1/8 48
414-4 5,000 2" to 4" 4 1/8 59
*416 10,000 0" to 1" 1 1/8 52
*ITEM NO. 416 HAS MULTIPLE SET SCREWS AND IS CAPABLE OF HANDLING CURVED PLATE SECTIONS.
Dimensions given are in round numbers. We reserve the right to make changes to our designs at any time that may not be reflected in the table. Please ask for a Certified Dimension Print for current dimensions.

The sizes and capacities listed above are a reference to the most common sizes of this equipment. If you have a different capacity, irregular size or some other need that must be met by our equipment, we will be happy to design one of these pieces of equipment to meet your special needs while also meeting or exceeding our interpretation of the appropriate ANSI / ASME. standards.

Improper use of lifting equipment may cause serious injury or death.
Only a Qualified Operator, as defined by the ASME B30.20 Standards, shall operate equipment.
Read and understand General Warnings before operating equipment.

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Designers and manufactures of "Below the Hook" material handling equipment.

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