These trampoline screws are exactly what you need to keep your trampoline stable and secure! Made from galvanized steel wire, they're seriously durable and corrosion-resistant, so they won't rust even when left outside. Each screw measures about 9.5cm long by 3cm wide (3.7x1.2 inches), with that distinctive circle design that provides excellent stability. The anti-loose feature means they stay tightened even with constant bouncing vibration, preventing that annoying wobble or shaking that can develop over time. Installation is straightforward - just position them on the trampoline's bottom bracket and tighten with a standard wrench. No complicated tools or special skills needed. These replacement screws work with most trampoline brands and models, making them a versatile solution for trampoline maintenance. The package includes 12 pieces, which is usually enough to secure all the critical connection points. The galvanized coating ensures they withstand outdoor weather conditions without deteriorating. If your trampoline has started feeling unstable or developing shake, these screws can often fix the problem completely. They're much sturdier than cheap original parts that often come with trampolines. The circle design distributes pressure evenly, reducing stress on individual connection points. Whether you're doing routine maintenance or repairing a specific stability issue, having these quality replacement screws on hand gives you peace of mind about your family's safety. They make the trampoline frame connection significantly more rigid, preventing the back-and-forth movement that can lead to premature wear or safety concerns. Seriously, if your trampoline isn't as stable as it used to be, these screws are an affordable fix that can restore that solid, secure feeling!