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U Bolts

U Bolts

The largest range of Round and Square U bolts delivered freight free. Available in Stainless Steel Marine Grade A4-70 G316, Mild Steel Class 4.6 Zinc Plated and Galvanised. We carry M4 - M24 diameters in lengths from 20mm to 600mm long in Metric Coarse thread and 1/4" - 3/4" diameters in UNC (unified national coarse) and BSW (british standard whitworth). Made to Hobson Engineering standards.Technical specifications, printable datasheets and product cad drawings available online

  1. Round
  2. Round with Plate
  3. Square
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Category
System of Measurement
  1. Metric 59 items
  2. Imperial 55 items
Size
  1. M5 (5mm) 1 item
  2. M6 (6mm) 1 item
  3. M8 (8mm) 2 items
  4. M10 (10mm) 18 items
  5. M12 (12mm) 29 items
  6. M16 (16mm) 1 item
  7. M20 (20mm) 4 items
  8. M24 (24mm) 3 items
  9. 1/4" 6 items
  10. 3/8" 8 items
  11. 1/2" 38 items
  12. 5/8" 1 item
  13. 3/4" 2 items
Size & Thread Pitch
  1. M5 x 0.80p Coarse 1 item
  2. M6 x 1.00p Coarse 1 item
  3. M8 x 1.25p Coarse 2 items
  4. M10 x 1.50p Coarse 18 items
  5. M12 x 1.75p Coarse 29 items
  6. M16 x 2.00p Coarse 1 item
  7. M20 x 2.50p Coarse 4 items
  8. M24 x 3.00p Coarse 3 items
  9. 1/4" x 20 TPI BSW 6 items
  10. 3/8" x 16 TPI BSW 8 items
  11. 1/2" x 12 TPI BSW 38 items
  12. 5/8" x 11 TPI BSW 1 item
  13. 3/4" x 10 TPI BSW 2 items
Thread Type
  1. Metric - Coarse 59 items
  2. BSW - Coarse 55 items
Material / Finish
  1. Galvanised 79 items
  2. Stainless Steel 26 items
  3. Zinc Silver Plated 9 items
Class / Grade
  1. A2-70 G304 7 items
  2. A4-70 G316 19 items
  3. Low Tensile Grade 2 55 items
  4. Low Tensile Class 4.6 33 items
Corrosion Protection Level
  1. Ultimate 19 items
  2. Excellent 86 items
  3. Moderate 9 items
Inside Width Range
  1. 20.00 - 29.00mm 11 items
  2. 30.00 - 39.00mm 7 items
  3. 40.00 - 49.00mm 25 items
  4. 50.00 - 59.00mm 25 items
  5. 60.00 - 79.00mm 17 items
  6. 80.00 - 99.00mm 4 items
  7. 100.00 - 119.00mm 8 items
  8. 120.00 - 199.00mm 6 items
  9. > 200.00mm 11 items
Overall Length From Inside
  1. 59.00 - 61.00mm 2 items
  2. 64.00 - 66.00mm 1 item
  3. 66.00 - 67.00mm 2 items
  4. 67.00 - 69.00mm 1 item
  5. 72.00 - 74.00mm 2 items
  6. 74.00 - 76.00mm 4 items
  7. 76.00 - 78.00mm 2 items
  8. 77.00 - 79.00mm 1 item
  9. 79.00 - 81.00mm 5 items
  10. 84.00 - 86.00mm 5 items
  11. 85.00 - 87.00mm 3 items
  12. 87.00 - 89.00mm 1 item
  13. 89.00 - 91.00mm 2 items
  14. 93.00 - 95.00mm 4 items
  15. 97.00 - 99.00mm 1 item
  16. 99.00 - 101.00mm 8 items
  17. 102.00 - 104.00mm 1 item
  18. 109.00 - 111.00mm 6 items
  19. 110.00 - 112.00mm 3 items
  20. 111.00 - 113.00mm 4 items
  21. 114.00 - 116.00mm 1 item
  22. 124.00 - 126.00mm 7 items
  23. 126.00 - 128.00mm 2 items
  24. 136.00 - 138.00mm 4 items
  25. 139.00 - 141.00mm 5 items
  26. 144.00 - 146.00mm 2 items
  27. 149.00 - 151.00mm 4 items
  28. 151.00 - 153.00mm 2 items
  29. 159.00 - 161.00mm 1 item
  30. 161.00 - 163.00mm 3 items
  31. 164.00 - 166.00mm 5 items
  32. 174.00 - 176.00mm 2 items
  33. 189.00 - 191.00mm 2 items
  34. 199.00 - 201.00mm 1 item
  35. 219.00 - 221.00mm 3 items
  36. 249.00 - 251.00mm 1 item
  37. 294.00 - 296.00mm 2 items
  38. 369.00 - 371.00mm 1 item
  39. 374.00 - 376.00mm 1 item
  40. 419.00 - 421.00mm 1 item
  41. 424.00 - 426.00mm 1 item
  42. 454.00 - 456.00mm 1 item
  43. 504.00 - 506.00mm 1 item
  44. 554.00 - 556.00mm 1 item
  45. 604.00 - 606.00mm 1 item
  46. 709.00 - 711.00mm 1 item
Nominal Bore
  1. 13mm (1/2") 1 item
  2. 15mm (9/16") 3 items
  3. 20mm (3/4") 4 items
  4. 25mm (1") 5 items
  5. 32mm (1-1/4") 4 items
  6. 40mm (1-9/16") 5 items
  7. 51mm (2") 5 items
  8. 65mm (2-9/16") 2 items
  9. 76mm (3") 2 items
  10. 80mm (3-1/4") 2 items
  11. 90mm (3-1/2") 2 items
  12. 101mm (4") 3 items
  13. 127mm (5") 2 items
  14. 150mm (6") 3 items
  15. 200mm (8") 2 items
  16. 250mm (10") 2 items
  17. 300mm (12") 2 items
  18. 350mm (13-3/4") 1 item
  19. 400mm (15-3/4") 1 item
  20. 450mm (17-3/4") 1 item
  21. 500mm (19-3/4") 1 item
  22. 600mm (23-3/4") 1 item
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