Heavy duty 4-piece Quadra-Lock design provides strenth and stability. Conical Arched perforated slots add more steel between perforations for added strength and smoother engagement. All components are stainless steel including 300 series bands. Superior screw design includes buttressed threads and more threads per screw. Exceeds all SAE requirements including standard J1508 Type "F."There are multiple applications: Plumbing - connections for dishwashers, garbage disposals, water softeners, and air conditioning; Irrigation - secure poly tubing, stabilize risers to stake Home - clamping various items together (atennas, automotive, poles, various DIY clamping).