Three basic types of bends are used on U-bolts depending on the suspension design and the shape of the mating parts: Round Bend, Semi- Round Bend and Square Bend.  Additionally, each of these types of bends may used forged material.  This is used primarily where additional clearance is required between the U-bolts and, for example, the frame

How to measure a U-bolt:

Regardless of the bend type, all U-bolts are measured in the same manner as show  here.  The U-bolt size is given as Diameter (A) x Distance Between Legs (B) x  Leg Length (C).  Additionally the bend type must also be specified; either  round, semi-round or square. Forged top U-bolts are best ordered application and leg length since the type of forging is usually unique to the particular application and must be maintained  to provide proper fit and clearance.

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