Best Cast Iron C Clamps in 2026

Versatile clamp secures parts for assembly, fastening, gluing, and welding in woodworking, metalworking, and automotive applications

Cast malleable iron frame with I-beam design provides sure strength

Acme-threaded screw glides smoothly without sticking or binding

Designed For Light General Purpose & DIY Projects

Drop Forged Frame With Bright Galvanized Finish

Swivel Pad Moves Freely To Adapt To Various Surfaces

A bar clamp of any length can be easily made using a piece of timber 1in thick

Cast iron head and slides incorporating large thrust surfaces

High-quality steel handle and screw with pin attached by welded chain

Features: The maximum throat depth is 3-1/2 inches, the maximum opening capacity is 6 inches.

Maximum Load Limit: 1200 pounds.

Materials: Clamp casting is made with ductile iron for strength before receiving a powder-coated Pony-orange finish.

[Clamp Set]: 3pc mini pony C-clamp / G-clamp constructed by iron casting for strength and toughness

[Dimensions]: 1-inch c clamp: 1-inch jaw opening & 1-inch throat depth; 2-inch c clamp: 2-inch jaw opening & 1-inch throat depth; 3-inch c clamp: 3-inch jaw opening & 2-inch throat depth

[Characteristics]: Bright Pony Orange Gloss Finish prevents the clamp from corrosion and rust for added longevity. Moveable parts with a zinc-plated surface for rust resistance

2" C Clamp, Up to 2 inch jaw opening. Up to 1-3/16 inch throat depth

Made of Cast Iron, Small c-clamp set used to hold together two workpieces by turining the screws, suit for woodworking and metal workpiece

Versatile clamp secures parts for assembly, fastening, gluing and welding

EASY, SECURE GRIP: Our screw clamps for woodworking and welding provide a secure hold when you need it most; You want your woodworking tools and accessories to be simple, reliable, and powerful, and our C Clamps fit the bill

FLEXIBLE JAWS: GreatNeck’s forged clamps are excellent wood clamps; Woodworking's a breeze with these clamps, which allow for precise chiseling, sawing or bonding; Our C Clamp also functions as excellent metal clamp tools for precise welding tasks

COMPLETE YOUR CLAMPS SET: Buy a C clamp in every size, and tackle just about any woodworking or welding task with ease and machine-like precision

Opening capacity is 6 inches

Throat depth is 3-1/2 inches

Load limit is 1,000 pounds

Features a 1-inch max jaw width and a 0.8-inch throat

Perfect for both metalworking and woodworking

Manufactured from heavy-duty malleable cast iron with a smooth black oxidized finish

Versatile clamp secures parts for assembly, fastening, gluing, and welding in woodworking, metalworking, and automotive applications

Cast malleable iron frame with I-beam design provides sure strength

Acme-threaded screw glides smoothly without sticking or binding

STEEL C-CLAMP: This 8" by 4" C-clamp is ideal for home, garage or woodshop. It features durable steel construction and a smooth adjusting swivel that makes precision clamping a breeze.

ERGONOMIC DESIGN: Work for hours with easy handling. Our high friction steel frame makes the clamp user friendly. We aim to deliver you strong hold and pressure grip to prevent slippage during use.

MADE TO LAST: Our durable and long-lasting tools help you with home, garage & industrial projects. With professional-grade quality, easily repair & fix issues with our tool cabinet essentials.

INDUSTRIAL STRENGTH C-CLAMP is made of heavy-duty cast iron with a machined, stainless steel screw for optimal durability during the messiest projects.

COATED SURFACE construction protects your clamps from moisture, preventing rust and corrosion from damaging your clamps. Blue Collar Tools C-Clamps will outlast uncoated clamps.

HIGH-QUALITY ENGINEERING keeps your C-Clamp from bending and warping with reinforcing fins allowing it to squeeze with more force.

Versatile clamp secures parts for assembly, fastening, gluing, and welding

Cast malleable iron frame with I-beam design provides sure strength

Chrome plated Acme-threaded screw glides smoothly without sticking or binding

【Specification】6-Pack C Clamps, 4-Inch Jaw Opening, Throat Depth: 2 inch, Clamping Force: 1125 lbs.

【Durable Materials】Using solid cast iron, drop forged frame with bright galvanized finish, cast iron frame for strength and durability means long lasting, coated surface preventing rust.

【Easy Adjustments】 The threads resist rust and easy adjustments, smoothly for glides, will offers multiple positions, and without sticking or binding.

【What You Get】2 Pack 6" C Clamps, 6-3/8 Inch Jaw Opening, Throat Depth: 2.60 inch, Jaw pad width: 1 inch, Maximum clamping force: 1350 lbs.

【Industrial Strength C Clamp】Made of heavy-duty cast iron, durable and high hardness. Coated surface construction protects your clamps from moisture, preventing rust and corrosion from damaging your G clamps.

【No Damage & Non-Slip】Swiveling clamp pad floats in a low-resistance ball-and-socket joint to apply pressure evenly and prevents marring while turning the clamp screw.

VERSATILE GRIPPING SOLUTION: Discover the convenience of the Hi-Spec Mini C-Clamps Set, designed to grip and secure workpieces for a variety of craftwork, hobbies, and DIY projects. These c clamps, also known as g clamps, are ideal for repairs, gluing, painting, and welding tasks, making them an essential addition to your toolkit

ALL-INCLUSIVE 3-PIECE SET: This comprehensive set includes three mini-sized g-clamps for small areas and tight spaces, with 1, 2, and 3-inch jaws and throat depths of 0.9, 1.0, and 1.3 inches. With these clamps, you'll have the perfect size for any project, from woodworking and carpentry to crafting and home repairs

DURABLE CAST IRON CONSTRUCTION: Made with a high-carbon cast iron frame, these clamps are built for stiffness and strength, ensuring long-lasting performance. The baked polished finish offers rust resistance, so you can trust that your clamps will stay in great condition even after extended use

Malleable cast iron frames for light duty use.

Chrome plated screw threads.

Ideal for clamping wood and metal.

【TOP LOCKING FORCE】The C-clamp is forged by ductile iron, being durable after overall heat treatment, holding metal pieces together for welding and providing better force and longer service life.

【EASY & SECURE GRIP】Our screw clamps are design with T shape grip, which is essential for holding wood together during any woodworking project, making you easy to use them without woo much effort.

【COATED SURFACE】Coated construction protects the c-clamps from moisture, preventing rust and corrosion from damaging your clamps.

Features a 2-inch max jaw width and a 1.2-inch throat

Perfect for both metalworking and woodworking

Manufactured from heavy-duty malleable cast iron with a smooth black oxidized finish

★【Heavy Duty C Clamp Set】6 Inch c clamp made of high quality cast malleable iron, rust resistance and corrosion resistance, sturdy and durable; black coated surface construction protects your clamps from moisture, preventing corrosion from damaging clamps.

★【6 Inch C Clamp Size】Maximum jaw opening: 6 inches; Throat depth: 2-5/8 inches; Jaw pad width: 1 inch; Thread diameter: 1/2 inch; Thread Length: 6-3/4 inches; Maximum clamping force: 1350 lbs.

★【Maximum Pressure】Sliding T-handle to produced maximum torque with little effort thereby reducing hand fatigue. Chrome-plated screw thread turns easily and does not bind so your clamps will last as long as you need them.

【Heavy Duty C Clamp Set】6inch C clamp made of high quality cast malleable iron, rust resistance and corrosion resistance, sturdy and durable; black coated surface construction protects your clamps from moisture, preventing corrosion from damaging clamps

【6in C Clamp】Maximum jaw opening: 6 inches; Throat depth: 2-5/8 inches; Jaw pad width: 1 inch; Thread diameter: 1/2 inch; Thread Length: 6-3/4 inches; Maximum clamping force: 1350 lbs

【Multipurpose 6” C Clamp】Cast malleable iron frame with I-beam design keeps your C-Clamp from bending and warping allowing it to squeeze with more force; heavy duty c clamp secures parts for assembly, fastening, gluing, and welding in woodworking, building, automotive applications and metalworking

Features a 4-inch max jaw width and a 2.2-inch throat

Perfect for both metalworking and woodworking

Manufactured from heavy-duty malleable cast iron with a smooth black oxidized finish

Features a 3-inch max jaw width and a 2-inch throat

Perfect for both metalworking and woodworking

Manufactured from heavy-duty malleable cast iron with a smooth black oxidized finish

PREMIUM CAST IRON - The C-clamp is forged from cast iron with good toughness and high hardness. The surface is coated with a blue coating, which can provide protection for the clamp and has a beautiful appearance. The screw rod is silver and is not easy to rust.

THREADED-IN DESIGN - The C clamp adopts a threaded-in design, which can freely adjust the range to be clamped. The thread of the clamp is clearly visible, and it is not easy to slip. The clamp provides a large and stable clamping force.

EASY TO USE - The heavy-duty C-shaped metal clamp is equipped with a swivel pad. This clamping device can not only hold objects of various shapes, but also reduce damage to the surface of the workpiece. The clamp is simple to operate, saves manpower, and brings convenience to workers.

【Specification】2 Pack 4" C Clamps, 4 Inch Jaw Opening, Throat Depth: 2-1/4 inch, Clamping Force: 1125 lbs.

【Industrial Strength】C Clamp is made of heavy-duty cast iron, durable and anti-rust. Coated surface construction protects your clamps from moisture, preventing rust and corrosion from damaging your G clamps.

【No Damage & Non-Slip】Swiveling clamp pad floats in a low-resistance ball-and-socket joint to apply pressure evenly and prevents marring while turning the clamp screw, better contact on angled surfaces.

Features an 8-inch max jaw width and a 3.4-inch throat

Perfect for both metalworking and woodworking

Manufactured from heavy-duty malleable cast iron with a smooth black oxidized finish

☆ Size & QTY ☆ : Packing include 4pcs min C-clamp, 4-inch c clamp: 4-inch jaw opening & 1-inch throat depth

☆ Premium C-clamps ☆: Made forged with high-quality malleable steel, with strong heat treatment; Using solid cast iron, drop forged frame with bright galvanized finish, cast iron frame for strength and durability means long-lasting, coated surface preventing rust

☆ Easy Adjustments ☆ Trapezoidal thread screw, large torque, to ensure strong angle effect;The threads resist rust and easy adjustments, smoothly for glides

Securely holds projects that require extra throat depth

4 in. jaw opening with 12-1/2 in. throat depth

Cast iron construction with powder coat finish for rust resistance

Features a 6-inch max jaw width and a 2.75-inch throat

Perfect for both metalworking and woodworking

Manufactured from heavy-duty malleable cast iron with a smooth black oxidized finish

【High Quality】High hardness clamp body is anti‑wear and anti‑rust, high strength screw is anti‑slip that can increase the service life.

【Widely Use】 C clamp is universally used and could conveniently hold up your accessory to shelves.

【Specification】4-Inch Jaw Opening, Throat Depth: 2 inch, Clamping Force: 1125 lbs.4 Packs C clamps.