ThePipingMart Blog Fasteners What is Fish Bolt?

What is Fish Bolt?

What is Fish Bolt?

Fish bolts are an essential part of many construction projects. But what exactly are they, and why are they so important? This blog post will cover the basics of fish bolts and explain why they are such a vital component in many modern construction projects.

What is Fish Bolt?

Fish bolts, also known as lag screws, are large-headed screw fasteners with hexagonal heads used in woodworking and other construction applications. They have been used in carpentry since the 1800s, and although their design has evolved, their purpose remains the same—to securely join two pieces of material together.

Fish Bolt Uses

Fish bolts have a variety of uses in construction projects. They can join two pieces of wood or metal together or attach fixtures like door frames, window frames, furniture frames, and more. They can also be used to secure heavy objects like cabinets and shelves to walls or floors. Additionally, they can be used to secure roofing materials like shingles or tiles.

Fish bolts are beneficial because they provide superior strength and durability compared to other fasteners like nails or screws. This makes them ideal for any project that requires extra strength and stability, such as when attaching load-bearing components like beams or posts. They also provide superior weather resistance because their heads are designed to seal out moisture better than regular screws. Finally, fish bolts offer greater holding power than traditional screws due to their larger size and deeper threads, which help keep them in place better when exposed to vibrations or movement caused by wind loads or seismic activity.


Fish bolts offer numerous benefits for any construction project. From providing superior strength and durability to offering greater holding power even during extreme weather conditions, these fasteners have become integral to many different types of projects, from carpentry work to roofing applications. With so many advantages, it is no wonder fish bolts remain one of the most popular fastening options today!

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