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“Pig Tail” Screws
Product Description Pig-Tail Bolts A pig-tail bolt is a fastener with a special shape, named for its spiral threaded end that resembles a pig’s tail. Below is a detailed description of pig-tail bolts: Structural Features One end of a pig-tail bolt has a threaded section, which is des...
Description
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Product Description
Pig-Tail Bolts
A pig-tail bolt is a fastener with a special shape, named for its spiral threaded end that resembles a pig’s tail. Below is a detailed description of pig-tail bolts:
Structural Features
One end of a pig-tail bolt has a threaded section, which is designed to connect with a nut for tightening or to be directly screwed into parts with internal threads—ensuring a secure connection. The opposite end is bent into a pig-tail-shaped hook, which can be used for hanging or fastening other items, such as chains, cables, or clamps.
Materials and Surface Treatment
Pig-tail bolts are typically made from carbon steel, stainless steel, or alloy steel:
Pig-tail bolts made of carbon steel offer high strength and toughness, meeting general engineering requirements.
Stainless steel variants provide excellent corrosion resistance, making them suitable for environments that demand enhanced protection (e.g., coastal areas or the chemical industry).
To further improve corrosion resistance and surface wear resistance, the bolts are usually treated with hot-dip galvanizing, electro-galvanizing, or Dacromet coating.
Technical Specifications
Pig-tail bolts come with various technical specifications:
Thread sizes typically range from M4 to M24 (M denotes metric thread).
Length varies based on practical needs, from tens to hundreds of millimeters.
Different application scenarios and load requirements call for the selection of pig-tail bolts with corresponding technical specifications.
Application:
Power Industry
Pig-tail bolts are widely used in power transmission lines, often for suspending insulating chains or securing cables to power transmission line poles. For instance, in overhead power transmission lines, they fasten tension clamps or suspension clamps to poles, thereby fixing and supporting conductors.
Construction Industry
During building construction, pig-tail bolts can be used to secure scaffolding or suspend protective nets. Their pig-tail-shaped hooks easily connect to scaffolding crossbars or uprights, enabling quick connection and reliable fastening.
Mechanical Engineering
In some machinery, pig-tail bolts are used to suspend components or connect transmission mechanisms. For example, in lifting equipment, they can be used to suspend hooks or chains, facilitating the lifting and transportation of heavy loads.
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