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A carriage bolt is specifically designed with a smooth rounded dome head and a square neck underneath. The square neck locks into the material (typically wood or pre-punched metal) when tightened, preventing the bolt from turning during installation.
Unlike hex bolts which feature a head on one end, stud bolts are threaded rods without heads. They are typically threaded along their entire length or on both ends, and are commonly used in high-pressure flange connections like pipelines.
U-bolts are curved fasteners shaped like the letter U, featuring threads on both ends. They are primarily used to support and secure piping, tubes, or round cables to structural surfaces or brackets.
T-bolts feature a unique T-shaped head that fits directly into T-slots. They are ideal for machine tools, structural framing, and jig fixtures where secure clamping and quick alignment are required.
Shoulder bolts, also known as stripper bolts, have an unthreaded cylindrical shoulder between the head and threads. They act as pivots or shafts for rotating or sliding components like pulleys, linkages, and guide pins.
These fasteners are manufactured from various materials depending on strength and environment, including carbon steel, stainless steel, alloy steel, and specialized corrosion-resistant finishes to ensure long-term durability.
