{"product_id":"4-40-heavy-duty-ball-link-set-du-bro","title":"4-40 Heavy Duty, Ball Link Set, Du-Bro","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDu-Bro - 884\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a Heavy Duty 4-40 Ball Link Set\u003c\/p\u003e\n\u003cp data-start=\"198\" data-end=\"502\"\u003eThe DU-BRO Heavy Duty 4-40 Ball Link is a strong, simple, and reliable solution for creating smooth control movement in your RC model. Whether you are flying a larger sport plane, a scale aircraft, or an aerobatic model, this ball link helps your control system stay tight, accurate, and free-moving.\u003c\/p\u003e\n\u003cp data-start=\"504\" data-end=\"582\"\u003eThis 3-piece set includes everything you need for one complete assembly:\u003c\/p\u003e\n\u003cul data-start=\"583\" data-end=\"682\"\u003e\n\u003cli data-start=\"583\" data-end=\"622\"\u003e\n\u003cp data-start=\"585\" data-end=\"622\"\u003e1 heavy-duty 4-40 threaded ball\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"623\" data-end=\"660\"\u003e\n\u003cp data-start=\"625\" data-end=\"660\"\u003e1 self-threading nylon socket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"661\" data-end=\"682\"\u003e\n\u003cp data-start=\"663\" data-end=\"682\"\u003e1 4-40 lock nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"684\" data-end=\"1006\"\u003eThe ball provides a pivot point that allows the linkage to move smoothly and reduces binding. This helps improve the feel and precision of your elevator, rudder, aileron, or throttle control. Because the socket is self-threading, it attaches easily to any 4-40 pushrod, making installation quick and beginner-friendly.\u003c\/p\u003e\n\u003cp data-start=\"1008\" data-end=\"1277\"\u003eEven though this ball link is made for heavy-duty use, it weighs only 2 grams, so it adds almost no extra weight to your model. This makes it perfect for larger airplanes that require strong hardware but still benefit from keeping the airframe light and responsive.\u003c\/p\u003e\n\u003cp data-start=\"1279\" data-end=\"1510\"\u003eThe DU-BRO Heavy Duty 4-40 Ball Link is ideal for upgrading older linkage systems or building new models with smoother, more accurate controls. It offers a secure connection, easy installation, and dependable long-term performance.\u003c\/p\u003e\n\u003cp data-start=\"1512\" data-end=\"1730\"\u003eProudly Made in the USA, this ball link gives you the strength, reliability, and smooth operation that DU-BRO products are known for—helping your aircraft fly better and respond more cleanly to every control input.\u003c\/p\u003e","brand":"DU-BRO","offers":[{"title":"Default Title","offer_id":42425734594640,"sku":"10-884","price":10.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0269\/6694\/9968\/files\/Screenshot2026-05-28150338.jpg?v=1779937444","url":"https:\/\/flightrc.co.nz\/products\/4-40-heavy-duty-ball-link-set-du-bro","provider":"Flight RC","version":"1.0","type":"link"}