U-Bolts (Standard, Extended & Heavy Pattern)
1/2" - 24" nominal pipe
SteelGalvanisedStainless steel A2Stainless steel A4
We supply U-bolts in three patterns - standard, extended and heavy - sized by nominal pipe size from 1/2 inch to 24 inch, in steel, galvanised and A2/A4 stainless finishes, with nuts to suit. Non-standard centres, legs and threads are supplied made to drawing.
Also known as: u bolt, u-bolt, pipe clamp bolt, pipe u-bolt, round bend u-bolt.
Standard pattern U-bolt dimensions
| Nominal Pipe Size | Thread Size | Between Centres | Depth of U | Thread Length |
|---|---|---|---|---|
| 1/2" | M6 | 28mm | 48mm | 30mm |
| 3/4" | M6 | 34mm | 53mm | 30mm |
| 1" | M6 | 41mm | 60mm | 30mm |
| 1.1/4" | M10 | 54mm | 67mm | 30mm |
| 1.1/2" | M10 | 60mm | 85mm | 35mm |
| 2" | M10 | 75mm | 95mm | 35mm |
| 2.1/2" | M12 | 90mm | 124mm | 55mm |
| 3" | M12 | 102mm | 126mm | 50mm |
| 4" | M12 | 131mm | 144.5mm | 50mm |
| 5" | M12 | 156mm | 182mm | 50mm |
| 6" | M12 | 182mm | 210mm | 50mm |
| 8" | M16 | 240mm | 252mm | 50mm |
| 10" | M16 | 292mm | 318mm | 50mm |
| 12" | M16 | 343mm | 363.6mm | 50mm |
Extended pattern U-bolt dimensions
| Nominal Pipe Size | Thread Size | Between Centres | Depth of U | Thread Length |
|---|---|---|---|---|
| 1/2" | M6 | 27mm | 97mm | 75mm |
| 3/4" | M6 | 33mm | 103mm | 75mm |
| 1" | M6 | 40mm | 111mm | 75mm |
| 1.1/4" | M10 | 55mm | 122mm | 85mm |
| 1.1/2" | M10 | 61mm | 127mm | 85mm |
| 2" | M10 | 70mm | 140mm | 85mm |
| 2.1/2" | M10 | 86mm | 152mm | 85mm |
| 3" | M12 | 102mm | 168mm | 90mm |
| 4" | M12 | 126mm | 193mm | 90mm |
| 5" | M12 | 152mm | 213mm | 90mm |
| 6" | M12 | 182mm | 240mm | 90mm |
| 8" | M16 | 241mm | 298mm | 95mm |
| 10" | M16 | 293mm | 349mm | 95mm |
| 12" | M16 | 343mm | 387mm | 95mm |
Heavy pattern U-bolt dimensions
| Nominal Pipe Size | Thread Size | Between Centres | Depth of U | Thread Length |
|---|---|---|---|---|
| 1/2" | M8 | 30mm | 46mm | 25mm |
| 3/4" | M8 | 35mm | 56mm | 25mm |
| 1" | M8 | 45mm | 61mm | 25mm |
| 1.1/4" | M8 | 55mm | 71mm | 25mm |
| 1.1/2" | M10 | 60mm | 85mm | 35mm |
| 2" | M10 | 75mm | 95mm | 35mm |
| 2.1/2" | M12 | 90mm | 124mm | 45mm |
| 3" | M16 | 105mm | 142mm | 50mm |
| 4" | M16 | 135mm | 167mm | 50mm |
| 5" | M16 | 160mm | 192mm | 50mm |
| 6" | M20 | 190mm | 225mm | 55mm |
| 7" | M20 | 215mm | 250mm | 55mm |
| 8" | M20 | 245mm | 285mm | 55mm |
| 9" | M20 | 270mm | 300mm | 55mm |
| 10" | M20 | 300mm | 340mm | 60mm |
| 12" | M20 | 350mm | 390mm | 60mm |
| 14" | M24 | 385mm | 428mm | 65mm |
| 16" | M24 | 435mm | 488mm | 65mm |
| 18" | M24 | 485mm | 528mm | 70mm |
| 20" | M24 | 540mm | 588mm | 70mm |
| 22" | M24 | 590mm | 638mm | 70mm |
| 24" | M24 | 640mm | 688mm | 70mm |
Need U-bolt in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.