We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Wilton H403CS C-clamp in hi-vis yellow with copper-plated spindle

Wilton

Wilton H403CS C-Clamp 3500 lb hand tool

SKU CH-SEZ8-BQATM MPN H403CS

A high-visibility yellow C-clamp with copper-plated spindle delivers up to 3500 lb clamping force

  • Product typeClamps
  • Surface finishHi-Vis Yellow
  • 3500 lb clamping force for heavy-duty holding
  • Copper-plated spindle resists rust and corrosion
  • Hi-Vis yellow finish for easy job-site spotting
  • 3 in maximum opening fits a range of workpieces
  • 2 3/8 in throat depth reaches past edges

Spark-duty C-clamp for welding and fabrication

The Wilton H403CS is a spark-duty C-clamp built to deliver up to 3500 lb of clamping pressure. Its 3 in maximum opening and 2 3/8 in throat depth suit a range of metalworking and assembly tasks. The high-visibility yellow powder-coated body makes the tool easy to locate on a busy shop floor or job site.

Copper-plated spindle resists heat and corrosion

A copper-plated spindle finish protects the threads from weld spatter, rust and corrosion during daily use. The powder-coated frame adds a further barrier against moisture and abrasion. Together these finishes keep the clamp operating smoothly without excessive binding or degradation over time.

Hi-Vis yellow body aids quick identification

The bright yellow coating lets users spot the clamp instantly among darker tools or debris, reducing search time during set-up. Standard C-clamp geometry works with existing fixtures and work-holding accessories. The 403 model designation identifies this specific spark-duty variant within the Wilton range.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $26.99
Pricier than about 54% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWilton
Model nameH403CS
Product typeClamps
Size & build
Surface finishHi-Vis Yellow

Questions about this item

How do I install the Wilton H403CS C-Clamp and which step is often missed?

Open the jaws to the 3 in maximum opening, position the clamp over the workpiece, and tighten the copper-plated spindle until the 3500 lb clamping pressure is reached; the step often missed is cleaning weld spatter from the spindle threads before each use to maintain smooth operation.

What maintenance or replacement will the Wilton H403CS C-Clamp need later?

Periodically lubricate the copper-plated spindle threads to prevent corrosion and inspect the powder-coated yellow body for chips that could expose the metal to rust; replace the clamp if the spindle shows stripped threads or the frame develops cracks.

What limit appears first on the Wilton H403CS C-Clamp during sustained heavy clamping?

The 3500 lb clamping pressure rating is the first limit reached under sustained use; exceeding it can permanently deform the frame or strip the spindle threads, so stop tightening once maximum pressure is achieved.

More in Utility & Specialty Hand Tools

Similar items