The Proto 402A Standard Service C-Clamp is engineered to provide a secure and stable hold for heavy-duty industrial tasks. Featuring a deep throat design and a full-length screw, this clamp offers the reach and versatility needed to manage thick workpieces that standard clamps cannot accommodate.
- Delivers a robust 3,500 lb load capacity to ensure maximum holding power during critical assembly or welding projects.
- Deep throat design provides extra clearance, allowing for deeper reach into the workpiece for more complex clamping configurations.
- Full-length screw construction ensures smooth operation and consistent pressure across the entire clamping range.
This C-clamp is ideal for professional welders, fabricators, and maintenance technicians who require high-strength, reliable clamping solutions in heavy-duty shop and jobsite environments.
- Load Capacity: 3500 lb
- Throat Depth: 2 in
- Part Number: 402A
About IndustrialSafety.comIndustrialSafety.com is a trusted national distributor of PPE, safety equipment, and industrial supplies for businesses, contractors, and municipalities across the U.S. We specialize in bulk orders, compliance-driven products, and hard-to-source safety solutions. If you need volume pricing, project quotes, or help finding the right product for your application, our team is ready to help — reach out anytime for a fast, no-pressure quote.



