The 4" Fast Lok Clamp 301-SS (model FOS16) by SEALFAST is a versatile clamping solution designed for quick and efficient fastening. Each box contains 50 clamps made from high-quality 301 stainless steel, ensuring long-lasting performance and resistance to corrosion. With a 4-inch diameter, these clamps are suitable for a wide range of applications, including plumbing and HVAC systems. The Fast Lok design allows for easy installation and removal, making it ideal for maintenance tasks. These clamps meet rigorous industry standards, providing reliability and peace of mind for professionals.