The universal one-hand quick-release coupling in a one-sided shut-off design at an extremely affordable price. The closed locking sleeve prevents contamination of the internal components. When using steel nipples, this coupling can also be used with pneumatic tools due to its hardened locking pins. Couplings and nipples with sealing thread coating: ready-to-install polyacrylate thread coating for immediate and high sealing without a curing process. The permanently elastic sealing material can be adjusted up to 45° without affecting the seal. Health-safe. Easy assembly and disassembly. To avoid injuries or the "whip effect," we recommend holding the plug nipple firmly with one hand when uncoupling. This quick-release coupling is not suitable for direct mounting on pulsating tools. We recommend using our vibration dampers according to ISO 6150, § 7.1. Areas of application: Pneumatics, machine and plant engineering, measurement, control and regulation technology, manufacturing industry, medical technology, chemical/pharmaceutical industry, workshops, automotive. For the quick-release couplings with thread coating, the following safety note applies: Since we do not know which types of threads, dimensions, materials, pairings, surface conditions, etc. are prevalent, it is essential to conduct appropriate control tests before general application to ensure the desired function under the respective practical conditions. All further claims, especially liability for consequential damages, are fundamentally excluded. Features: Spring: stainless steel, sleeve: brass, NW: 7.2, retaining ring: stainless steel.