A square U bolts are the bolt in the shape of the letter U with screw threads on both ends. U bolts have primarily been used to support pipework, pipes through which fluids and gasses pass. As such, U bolts were measured using pipe-work engineering speak. A U bolt would be described by the size of the pipe it was supporting. U bolts are also used to hold ropes together. Ever Hardware provides custom-made fasteners and customizable packaging.
For example, a 40 Nominal Bore U-bolt would be asked for by pipework engineers, and only they would know what that meant. In reality, the 40 nominal bore part bears little resemblance to the size and dimensions of the U bolt.
The nominal bore of a pipe is actually a measurement of the inside diameter of the pipe. Engineers are interested in this because they design a pipe by the amount of fluid/gas it can transport.
As U-bolts are now being used by a much wider audience to clamp any kind of tubing/round bar, then a more convenient measurement system needs to be used.
Four elements uniquely define any U-bolt:
Material type (for example bright zinc-plated mild steel)
Thread dimensions (for example M12 * 50 mm)
Inside diameter (for example 50 mm – the distance between the legs)
Inside height (for example 120 mm)

Aluminum is a relatively soft, durable, lightweight, ductile, and malleable metal with appearance ranging from silvery to dull gray, depending on the surface roughness. It is nonmagnetic and does not easily ignite. A fresh film of aluminum serves as a good reflector (approximately 92%) of visible light and an excellent reflector (as much as 98%) of medium and far-infrared radiation. The yield strength of pure aluminum is 7–11 Mpa, while aluminum alloys have yield strengths ranging from 200 Mpa to 600 Mpa. Aluminum has about one-third the density and stiffness of steel. It is easily machined, cast, drawn, and extruded.

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Category Square U Bolts
Finish Electro-Plating
Thread type Metric/Imperial/According to Request
Material Stainless Steel/Carbon Steel/Aluminum/Brass/Copper, etc.
Brand Ever Hardware
Place of origin China Mainland
Size Customized as required
Square u bolts custom bend aluminum anodizing internal threaded

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What Client’s Say

Those look great! All the specs look perfect.
Kent De Mond
Perfect ! This is that I need.
Hernán Balboa
Thank you very much.
The bolts are perfect and they’re fits good.
Ashley
The nut fits perfect on our M2.5 screw part.
Height is also ok.
Mirjam
I tested the bolts this morning and they are perfect. Thank you so much.
Bill McDonald

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