Eye Bolts Explained
At their core, eye bolts create a strong, repeatable attachment point for hooks, shackles, slings, ropes, or cables. Our range covers common thread profiles and lengths for clean, accurate installation in metal, wood, or concrete fixtures, with options that suit everything from permanent machinery mounts to temporary lift points.
If your job calls for a dedicated lifting attachment, consider our Lifting Eye Bolt, and if clearance is tight or you prefer a classic forged profile for tie-downs and guide wires, our Bent Eye Bolt is a smart, rugged alternative that fits seamlessly into your setup.
Our DIN 444 eye bolts feature a forged loop and a precision-machined shank for smooth threading and excellent repeatability. This standard is the go-to when you want a durable eye with reliable concentricity for linkages, control arms, turnbuckles, or tensioning assemblies. The partially threaded design gives you firm seating strength where it matters, helping reduce play under vibration while keeping installation quick and consistent.
Choose DIN 444A when you need maximum adjustability and secure engagement across a wider clamping range. These fully threaded variants allow you to dial in exact positioning, lock with nuts on either side of your fixture, and fine-tune tension without sacrificing holding power. They’re ideal for through-bolting plates or brackets, creating adjustable rod ends, and building assemblies where service access and alignment are part of your daily routine.
DIN 444B brings a shoulder-threaded style that sits positively against your surface for improved load distribution. The shouldered transition helps maintain alignment under dynamic or off-axis forces, which makes this option particularly useful on equipment mounts, guard rails, and moving linkages that experience side loads. Select DIN 444B when your application benefits from a defined bearing surface and a more controlled interface between the eye and the structure.
FAQs
What is an eye bolt used for?
An eye bolt provides a strong point to connect lifting gear, rigging hardware, ropes, or cables. It’s commonly used to lift equipment, guide moving assemblies, or secure loads in place. In short, it turns a surface or structure into a reliable attachment point.
How much weight can an eye bolt hold?
Capacity depends on the eye bolt’s size, material, thread engagement, and the angle of the load. For overhead lifting, always use lifting-rated products and follow the manufacturer’s Working Load Limit with proper installation. Keep loads in line with the shank whenever possible and use shouldered designs for any angular pulls.
What is the difference between an eye nut and an eye bolt?
An eye bolt has its own shank that threads into a tapped hole or passes through a part for nut-and-washer fastening. An eye nut threads onto an existing stud or bolt to create a lifting or tie-off point where a threaded projection already exists. Think of an eye bolt as the all-in-one fastener, while an eye nut converts a protruding thread into an attachment eye.
What is an alternative to eye bolts?
Depending on the job, you might opt for a hoist ring for full-rotation lifting, a pad eye for welded anchor points, or an eye nut when you already have a stud in place. For guided runs or tie-downs, a Bent Eye Bolt can be a compact substitute. Your choice should match the load direction, capacity requirement, and installation method for safe, repeatable performance.
