In this segment of our Parts Identification Series, we will cover how to properly identify and measure u-bolts. 

When requesting a quote for custom bent u-bolts. It’s important to know the exact measurements and specifications you require to ensure the u-bolt fits correctly where it needs to.


(A) Diameter

 The measurement across the rod.
Different thicknesses include: 3/8", 7/16", 1/2", 9/16", 3/4", 7/8", or 1"

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(B) Inside Width

 The measurement from inside rod to inside rod measurement, right under the arch. The proper width is required to ensure the u-bolt will fit around what it needs to go around.

(C) Length

The measurement from the inside of the arch to the bottom of the thread.

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U-Bolt Head Shape




Specific 3-1/2" or 4" Wide Ford U-Bolt

Ford Diamond Top

Hendrickson Semi Round

International Semi Round