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Twelve silver C-clamps with black screws in a row

Pony 2640 C-Clamp 4-Inch 12 Pack

SKU CH-30X5-S50WD MPN 2640

A 12-pack of 4-inch C-clamps with 400 lb clamping force and 3-inch throat depth for DIY, light woodworking and household tasks

  • Fit and compatibility4 in (10.2 cm)
  • Certifications and standardsChemical, lead
  • Labor warrantyAll devices manufactured by ADJUSTABLE CLAMP COMPANY are int
  • Number of items12 pack
  • Parts warrantyAll devices manufactured by ADJUSTABLE CLAMP COMPANY are int
  • Strong grip for DIY tasks with 400 lb clamping force
  • Deep reach into workpieces with 3 inch throat depth
  • Wide 4 inch opening fits larger projects
  • Durable zinc-plated acme screw resists corrosion
  • Twelve clamps ready for workshop or household use

4-Inch C-Clamp 12-Pack

This set contains twelve 4-inch C-clamps designed for general-purpose clamping. Each clamp delivers a 400 lb load limit with a 3-inch throat depth. The zinc-plated acme threaded screw and ductile iron casting provide durability for repeated use. They are intended for hand-applied force only.

DIY woodworking and household tasks

These clamps suit DIY projects, light-duty woodworking and household repairs where moderate pressure is sufficient. They are not for buyers who need higher clamping force for heavy fabrication or metalworking. They are also not for users who require a larger throat depth for reaching across wide workpieces. Industrial applications exceeding hand-applied loads are outside the intended use.

400 lb clamping force

The 400 lb load limit is the single specification that determines whether this pack meets the project requirements. Builders needing 600 lb, 800 lb or 1000 lb capacity should select a different model from the range. The 12-pack quantity supplies multiple clamps for simultaneous glue-ups or fixturing. Verify the force requirement before purchase.

How it compares

Measured against everything we stock in Workshop Hardware, Springs & Clamps, at today’s prices. Recalculated every night.

Price $19.99
Pricier than about 55% of the 383 comparable items (median $17.99).

Specifications

Product
Brand namePONY
Model name2640
Part number2640
Compatibility
Fit and compatibility4 in (10.2 cm)
In the box
Number of items12 pack
Environment & compliance
Certifications and standardsChemical, lead

Questions about this item

What does the 400 lb clamping force mean when I use the clamp?

The 400 lb clamping force is the maximum load the clamp is designed to accept when tightened by hand, making it suitable for DIY, light woodworking and household projects.

What standard does the 4-inch opening follow and what does it limit?

The 4-inch opening capacity is the maximum distance the jaws can spread, limiting the thickness of workpieces you can clamp in a single setup.

What physical space does the 3-inch throat depth need to fit?

The 3-inch throat depth requires at least 3 inches of clearance from the workpiece edge to the clamp frame, so the frame can reach over the material.

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