20mm Single Dynamic Bearing Block with Swivel Head
Upgrade your vessel's rigging with the high-performance Allen 20mm Single Dynamic Bearing Block with Swivel Head, a premium entry in our Blocks category. Built by Allen, this 20mm dynamic bearing block features a swivel head for easy line changes and smooth performance under load, helping experienced sailors maintain control in demanding conditions. The compact 20 mm size makes it ideal for halyards and control lines on a wide range of vessels, from small cruisers to larger yachts. Available now at Big Burjo's Marine, your trusted source for marine parts and boat parts, including deck hardware and rigging components.
Free delivery Australia-wide on orders over $350. We deliver to every marina, port, coastal town in Australia, bringing the Allen 20mm Single Dynamic Bearing Block with Swivel Head to places like Gladstone Marina, Gold Coast Broadwater, and Southport Yacht Club. Shop with Big Burjo's Marine for reliable marine parts, boat parts, and blocks that stand up to demanding coastal conditions.
Details
Full specifications, features and technical details for this product are listed in the description above. Need help checking compatibility with your vessel, caravan or 4x4? Contact our Gold Coast team on 0416 180 996 or sales@bigburjos.com and we'll confirm fitment before you order.
Shipping & Returns
Shipping (Australia-wide): Orders over $350 AUD ship free. Orders under $350 have a $15 AUD flat-rate delivery fee. Standard delivery takes 3–11 business days depending on your location; express options (1–3 business days) are available at checkout. Orders are dispatched within 1–2 business days.
Returns: We offer a 30-day return policy. Items must be unused and in original packaging. Contact us at sales@bigburjos.com or 0416 180 996 to start a return. See our full Shipping Policy and Refund Policy for details, including your rights under Australian Consumer Law.