How are Graphskill U-bolt threads created?
Graphskill use a Thread Rolling technique for most U-bolts. This means the diameter of the bar being used is slightly less than the thread. For example, if you need a U-bolt with an M8 thread (8 mm) then we will use a 7.1 mm diameter bar, and roll the thread on. We can use cut threading if necessary. READ MORE….
What are the dimensional tolerances?
Graphskill work to +/- 1 mm for tolerances
Can Graphskill provide full material test certification?
Yes, but please indicate your requirements at the time of ordering
How do I measure a U-bolt?
U-bolts have many different measurements associated with the: from centers to nominal bore; from leg length to Pipe OD. It can be confusing so Graphskill are pioneering a new method. You only need to consider 4 things as shown in this image. Dial these up on the -bolt filter and it will show you appropriate U-bolts
Read more in our blog here: Frustrated with finding the correct U-bolt
What materials do you make U-bolts from?
Our standard material finishes available off the shelf are:
Galvanised Mild Steel
Zinc Plated Mild Steel
T304 Stainless Steel
T316 Stainless Steel (Marine grade)
However, if you need a different material please do ask
Can you make a U-bolt to my design / specification / measurements?
Yes, we manufacture U-bolts here in the UK, and can make bespoke U-bolts to your own measurements. For details (and a free, immediate online quote) have a look at our Quotes & estimates page