Clamps

Name: Wilton — 20" Regular Duty F-Clamp Copper - (2400S-20C)
Brand: Wilton
SKU: WL9-86430
Price: 197.99 USD
Availability: InStock

Collection: Clamps

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About Clamps at Pittsburgh Spray Equipment

Work-holding clamps are among the most essential tools in any machine shop, fabrication facility, woodworking studio, or manufacturing environment. Whether you're securing a workpiece for machining, holding components during assembly, or clamping materials for cutting or welding, the right clamp makes the difference between safe, efficient work and costly mistakes. At Pittsburgh Spray Equipment, we've spent 60 years building relationships with contractors, manufacturers, and craftspeople across the industrial spectrum—and clamps have always been part of our core inventory.

We stock work-holding clamps from all the brands that professionals trust: Wilton, Grizzly, Bessey, Irwin, and others. Wilton, in particular, is renowned for precision-engineered clamps that deliver consistent holding power and durability across heavy-duty, general-purpose, and specialty applications. Our selection ranges from lightweight F-clamps and C-clamps to spark-duty drop-forged models designed for high-temperature environments. We understand that one-size-fits-all doesn't apply to clamping—different jobs demand different solutions—so we've curated a collection that covers opening capacities, throat depths, and duty ratings to match real-world needs.

When you shop clamps with PSE, you're not just buying a part; you're tapping into decades of application expertise. Our team can help you find the right size and style, answer questions about material compatibility, and ensure fast shipping to keep your projects on schedule. We're committed to keeping your operations running smoothly.

How to Choose the Right Clamps

Selecting the right clamp requires understanding your workpiece, the force you need to apply, and the environment where the clamp will work. Use this guide to narrow down your options.

Opening Capacity and Throat Depth: These measurements determine what size workpiece your clamp can hold. Opening capacity tells you the maximum width between the clamp's jaws; throat depth is the distance from the screw spindle to the back of the clamp. Always verify both dimensions fit your application—a clamp with adequate opening might have insufficient throat depth for your needs.
Duty Rating (Light, Regular, Heavy, Spark-Duty): Light-duty clamps are fine for gentle holding in woodworking or assembly tasks. Regular-duty clamps suit general machine shop work. Heavy-duty and drop-forged clamps handle sustained pressure, high-temperature welding, and forge work. Spark-duty clamps are specifically engineered to withstand the intense heat and spatter of arc welding without damage.
Clamp Type (F-Clamp vs. C-Clamp): F-clamps (bar clamps) provide longer reach and are ideal for edge-to-edge work or holding larger assemblies. C-clamps offer compact, powerful clamping in confined spaces. Your workpiece geometry and available workspace often dictate which type works best.
Jaw Material and Finish: Cast iron and steel are common and durable, but some applications benefit from copper-faced jaws (like the Wilton 20" F-Clamp Copper) to avoid marring softer metals or finished surfaces. Check material specifications if your workpiece is sensitive to corrosion or cosmetic damage.
Screw Type and Ease of Use: Modern clamps feature smooth, fast-acting screws that reduce clamping time. Consider how frequently you'll adjust the clamp—in high-volume production, a quick-release or fast-turn screw pays dividends. Swivel pads can also reduce setup time and improve holding geometry on irregular surfaces.

Featured Clamps

Model	Brand	Key Spec	Best For	Price
20" Regular Duty F-Clamp Copper (2400S-20C)	Wilton	20" opening, copper face	Edge work, assembly, soft metal protection	Call for pricing
8" Light Duty F-Clamp (1200S-8)	Wilton	8" opening, light duty	Woodworking, light assembly, space-constrained work	Call for pricing
540A Series C-Clamp 0 - 14" Opening Capacity	Wilton	14" max opening	General machine shop use, larger workpieces	Call for pricing
Spark-Duty Drop Forged Hi-Vis C-Clamp (8-1/4" opening)	Wilton	8-1/4" opening, 4-15/16" throat depth	Arc welding, high-heat applications, metal fabrication	Call for pricing
Spark-Duty Drop Forged Hi-Vis C-Clamp (6-1/16" opening)	Wilton	6-1/16" opening, 4-1/16" throat depth	Welding fixtures, forge work, sustained high-heat environments	Call for pricing

Frequently Asked Questions

What is the difference between a C-clamp and an F-clamp?

C-clamps have a C-shaped frame with a screw at the end, making them compact and powerful for tight spaces and applications where you need maximum clamping force in a small area. F-clamps (also called bar clamps) have a longer bar design that spreads clamping force over a wider area, making them ideal for edge-to-edge work, larger assemblies, and situations where you need reach without excessive pressure concentration on any single point.

How do I know what opening capacity and throat depth I need?

Measure the thickest workpiece or assembly you plan to clamp. Opening capacity must be at least as large as that dimension. Throat depth determines how far from the clamp's base you can reach—measure from the back edge of your workpiece to where you need the clamp to grip. Always allow a small margin for safety and ease of tightening. If uncertain, call our team with your dimensions; we can recommend the right size quickly.

What does "spark-duty" mean, and do I need spark-duty clamps for welding?

Spark-duty clamps are drop-forged and heat-treated to withstand the intense heat, spatter, and oxidation that occur during arc welding and forge work. Standard clamps can warp, crack, or lose holding power under these conditions. If you're doing regular welding, fabrication, or work near high-temperature processes, spark-duty clamps are a sound investment—they last longer and maintain reliability where ordinary clamps fail.

Are copper-faced clamps worth the extra cost?

Copper-faced clamps like the Wilton 20" F-Clamp Copper protect soft metals (aluminum, brass, copper) and finished surfaces from marring and corrosion. If you regularly work with materials that bruise easily or require a pristine finish, copper faces are well worth it. For general steel work, standard cast-iron faces are adequate and more economical.

How quickly can Pittsburgh Spray Equipment ship clamps?

We stock popular clamps and aim to ship most orders within 1-2 business days. For specialty sizes or bulk orders, we work closely with our suppliers to minimize lead times. Contact our sales team with your requirements, and we'll provide a specific timeline. We serve customers across the region and beyond, and fast, reliable shipping is part of our 60-year commitment to keeping your projects on track.

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