The 4Standard Nut from Fittings Unlimited Inc is a high-quality fastening solution designed for secure connections in various piping systems. This standard nut is compatible with 4mm fittings, ensuring a tight and leak-free seal. Made from durable materials, it meets industry standards for reliability and performance. Ideal for use in hydraulic and pneumatic applications, this nut is essential for maintaining the integrity of your fluid systems. Its straightforward design allows for easy installation and removal, making it a practical choice for both professionals and DIY enthusiasts.