A rope clamp is a bolt-on fastener used to secure wire rope and form loops. The U-bolt cable clamp is the most common type, and wrenches and ratchets are used to apply or tighten them. Thimbles are often included to protect the rope from wear and tear.
A rope clamp is a bolt-on fastener used to tie the cable in a particular position. Cable ties commonly include two halves joined by two or more bolts. The halves are snapped together and secured in place with the string folded down the middle. One of the most common uses for a rope clamp is to form a loop at the end of a cable. Rope tie-down loops can often be found at the end of boat mooring lines and wire rope anchors.
Clamps are generally used to secure wire rope that has been joined into a thick rope. The strong cable clamp often serves the dual purpose of preventing the cable from unwinding and holding the end in a secure rounded shape. A second clamp is sometimes applied to the wire rope furthest from the end of the loop as a secondary safety measure that is only necessary if the first clamp fails. These ultra-durable, double-clamped metal ropes are frequently used to tie down large, heavy, or powerful objects to the ground.
The U-bolt cable clamp is generally the least expensive and most commonly used type of cable tie. A single U-shaped steel bolt is placed around the rope. The solid drilled bracket slides over the two threaded ends of the U-bolt. Nuts are then twisted onto the U-bolt to hold the bracket and tighten it against the string. U-Bolt Cable Clamps are made in a variety of gap sizes to accommodate any diameter rope.
Wrenches and ratchets are the most common tools used to apply or tighten a rope clamp. Most cable clamps can be repeatedly loosened and repositioned to change the length of the cable and the size of the final loop. Tightening a rope clamp can reduce slippage by constantly pressing the two sections of rope clamped together. Some factory-installed cable clamps are permanently riveted or glued before the cable is sold.
String clamp kits often come with a thimble for the loop. Teardrop-shaped, open-ended hoops called thimbles are usually applied to the inside edge of attached rope loops. The metal or hard plastic thimble protects the rope from wear and tear while in use. Loop thimbles have a concave back with a slightly larger diameter than the string. Metal thimbles can often be bent to form the desired rope end shape once placed inside the attachment loop.
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