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Square

Square

Bolt and Nut Australia has the largest range of Round U Bolts and Square U bolts in stock, delivered freight free from our Brisbane warehouse with no minimum spend or order quantity. Available in Stainless Steel Marine Grade A4-70 G316, Mild Steel Class 4.6 Zinc Plated and Galvanised. Our range is M4 - M24 metric coarse and 1/4" - 3/4" diameters in UNC (unified national coarse) and BSW (british standard whitworth) in lengths from 20mm to 600mm. Technical specifications, printable datasheets and product cad drawings are available online for this product

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    In stock

    M10 x 24mm Inside (W) x 60mm Length (L) Galvanised Square U Bolts & Nuts
    M10 x 24mm Inside (W) x 60mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $1.87
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  2. Free shipping

    In stock

    M10 x 42mm Inside (W) x 86mm Length (L) Galvanised Square U Bolts & Nuts
    M10 x 42mm Inside (W) x 86mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $1.87
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  3. Free shipping

    In stock

    M10 x 42mm Inside (W) x 86mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    M10 x 42mm Inside (W) x 86mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    As low as $5.95
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  4. Free shipping

    In stock

    1/2" BSW x 40mm Inside (W) x 100mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 40mm Inside (W) x 100mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  5. Free shipping

    In stock

    1/2" BSW x 40mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 40mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  6. Free shipping

    In stock

    1/2" BSW x 40mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 40mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  7. Free shipping

    In stock

    1/2" BSW x 40mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 40mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  8. Free shipping

    In stock

    1/2" BSW x 40mm Inside (W) x 150mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 40mm Inside (W) x 150mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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    15% OFF for orders over $250
  9. Free shipping

    In stock

    M12 x 42mm Inside (W) x 115mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 42mm Inside (W) x 115mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $2.25
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  10. Free shipping

    In stock

    M12 x 44mm Inside (W) x 110mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 44mm Inside (W) x 110mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $2.67
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  11. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 100mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 100mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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    5% OFF for orders under $99
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    15% OFF for orders over $250
  12. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.08
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    5% OFF for orders under $99
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  13. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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    5% OFF for orders under $99
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    15% OFF for orders over $250
  14. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  15. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 150mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 150mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  16. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 162mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 162mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  17. Free shipping

    In stock

    1/2" BSW x 45mm Inside (W) x 175mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 45mm Inside (W) x 175mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  18. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 75mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 75mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  19. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 100mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 100mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  20. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  21. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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  22. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  23. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 150mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 150mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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    15% OFF for orders over $250
  24. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 162mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 162mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  25. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 175mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 175mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  26. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 200mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 200mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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  27. Free shipping

    In stock

    1/2" BSW x 50mm Inside (W) x 250mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 50mm Inside (W) x 250mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $6.29
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  28. Free shipping

    In stock

    M12 x 52mm Inside (W) x 80mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 80mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $2.97
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  29. Free shipping

    In stock

    M12 x 52mm Inside (W) x 80mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 80mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    As low as $7.65
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  30. Free shipping

    In stock

    M12 x 52mm Inside (W) x 110mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 110mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $2.97
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  31. Free shipping

    In stock

    M12 x 52mm Inside (W) x 110mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 110mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    As low as $7.65
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    In stock

    M12 x 52mm Inside (W) x 145mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 145mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $2.97
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    In stock

    M12 x 52mm Inside (W) x 145mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 145mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    As low as $7.65
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    In stock

    M12 x 52mm Inside (W) x 165mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 165mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $3.57
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    In stock

    M12 x 52mm Inside (W) x 165mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    M12 x 52mm Inside (W) x 165mm Length (L) A4-70 G316 Stainless Square U Bolts & Nuts
    As low as $7.65
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  36. Free shipping

    In stock

    1/2" BSW x 56mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 56mm Inside (W) x 112mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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    In stock

    1/2" BSW x 56mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 56mm Inside (W) x 125mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $4.16
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    In stock

    1/2" BSW x 56mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 56mm Inside (W) x 137mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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    In stock

    1/2" BSW x 56mm Inside (W) x 162mm Length (L) Galvanised Square U Bolts & Nuts
    1/2" BSW x 56mm Inside (W) x 162mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $5.44
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    In stock

    M12 x 67mm Inside (W) x 90mm Length (L) Galvanised Square U Bolts & Nuts
    M12 x 67mm Inside (W) x 90mm Length (L) Galvanised Square U Bolts & Nuts
    As low as $2.97
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