As the name suggests, a bolt-type shackle comes with a bolt, nut, and a cotter pin, making it a secure rigging tool. With a bolt and nut securing the shackle pin, they remain closed even when subject to rotation. These shackles come in different sizes and designs, including Dee and Bow shackles.They are also made from various materials, including stainless steel, carbon steel, and alloy steel. You can find them in construction, shipping, and oil and gas, for securing heavy loads during lifting, towing, and other operations.At Holloway, we offer a wide range of bolt-type shackles. Whatever your rigging needs may be, we've got you covered. Just give us a call!

A clamp load, also referred to as a preload, is the force that holds a joint together. In a bolted joint, the compression occurs on the surface of impact between two parts of the joint, creating a clamping force. When used in bolted joints, this creates tension that keeps the bolt together and makes it stronger and more reliable. If the clamp load of a bolted joint is too high, it could lead to wear and tear on the threads. If it is too low, the bolt may loosen.

Securing a connection in an application can be more complicated than it appears. To the average person, a clamp is simple – turn the screw and the clamp tightens up. But when you break down the interactions and try to quantify individual contributions, things aren’t as simple as they appear.

A clamp load, also referred to as a preload, is the force that holds a joint together. In a bolted joint, the compression occurs on the surface of impact between two parts of the joint, creating a clamping force. When used in bolted joints, this creates tension that keeps the bolt together and makes it stronger and more reliable. If the clamp load of a bolted joint is too high, it could lead to wear and tear on the threads. If it is too low, the bolt may loosen.

When a bolt is tightened into a mating threaded part, the two components interact by pulling each other together. This force is called clamp load and is what keeps the joint from coming apart. Provided that the force pulling it together is greater than the outside forces (service loads) that are trying to pull it apart, no problem will result with the attachment. Unfortunately, friction plays a large part in this system. Of the 100% of torque applied to fasteners to pull them together, 50% is lost in underhead bearing face friction and 40% is lost through friction between the mating threads.

There are different design styles for wire rope clips, but all clips work similarly. There is a rounded opening that fits around the wire rope. The clip is closed by two screws with bolts, causing the rounded opening to tighten around the wire rope, holding it firmly in place.Since this hardware is used in applications that involve heavy equipment, which can be dangerous, wire rope clips need to be used correctly.

Wire rope clip is an extremely versatile mechanical device that can be used to help support and move objects or loads. Whether used in cranes or other lifting applications, it is important to have an in-depth understanding of the rigging components used to attach and lift loads.As a manufacturer of wire rope clamps, it is necessary to share with you the various types of wire rope end terminations. In this article, you can learn about what is wire rope clip and the type of wire rope clamp.

The primary differentiation in eye bolt construction is whether they are forged or formed-and-bent. Forged Eye Bolts: These are created by hammering or pressing the formable metal into the loop form of the eye. Forged eye bolts are a stronger and more durable construction capable of withstanding loads up to the tensile strength of the material used. The working load capacity (WLL) of all eye bolts decreases significantly depending on the angle of pull, up to 70% at 45°. 

Machinery eye bolts are one of the most common types of rigging hardware used for lifting or securing machinery and equipment. Like slings, sling hooks, and shackles, eye bolts also come in various designs and configurations, made of different materials, like 304 stainless steel and zinc-plated high-carbon steel.While they're widely utilized in industrial applications, eye bolts are also one of the most frequently misinterpreted and misused pieces of hardware. Their misuse and overuse are unfortunately widespread, and given their importance in overhead lifting, abusing them raises the danger of failure, equipment damage, and injury.In this article, we'll list the do's and don'ts of hoisting a load with eye bolts and some common activities that make their use dangerous.

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