{"product_id":"tackform-duralock-20-series-3-5-inch-ball-socket-arm-dual-20mm-sockets-optional-anti-theft-knobs-black","title":"Tackform DuraLock 20 Series 3.5-Inch Ball \u0026 Socket Arm | Dual 20mm Sockets | Optional Anti-Theft Knobs | Black","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the Tackform 3.5\" Long Metal 20mm Ball and Socket Arm from the DuraLock 20 Series. Built for dependable mounting in mobile and workspace setups, this arm blends rugged metal construction with practical geometry to help you position devices precisely where you need them. It is designed to integrate with 20mm ball and socket ecosystems, offering a balanced mix of strength, reach, and adjustability in a compact footprint.\u003c\/p\u003e\n\u003ch3\u003eCompatibility, Durability, and Safety\u003c\/h3\u003e\n\u003cp\u003eDesigned to work with 20mm ball and socket systems used by brands like Bulletpoint, 67 Designs, and iBOLT, this Tackform arm emphasizes a tested durability and a sound safety factor. The result is a mounting solution that holds its position under vibration and movement, while remaining responsive to quick realignments when your setup changes. The construction prioritizes long-term reliability in demanding environments, with Tackform promising a build that is BUILT TO OUTLAST YOU.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatibility with multiple 20mm system standards ensures broad accessory options and straightforward integration into existing rigs.\u003c\/li\u003e\n  \u003cli\u003eOptional anti-theft knob adds security in transit or high-mobility environments, while helping keep joints secure when not fully tightened.\u003c\/li\u003e\n  \u003cli\u003eDual socket design provides a wide range of articulation for precise device positioning across a variety of angles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDual Sockets, Precise Sizing, and Real-World Measurements\u003c\/h3\u003e\n\u003cp\u003eThe arm measures 3.5 inches from end to end, with the ball centers spaced 2.75 inches apart. For overall geometry, the setup offers an 8-inch overall length and a 7.17-inch center-to-center distance (182 mm). This combination helps you determine where your device will rest relative to the mounting base, so you can plan the layout with confidence. Note that this system is designed for 20mm balls and sockets and is not compatible with larger 25.4 mm \/ 1\" B-Sized balls.\u003c\/p\u003e\n\u003ch3\u003eYour Scenarios, Your Setup\u003c\/h3\u003e\n\u003cp\u003eWhether you’re mounting navigation screens, action cameras, or diagnostic gauges, the DuraLock 20 Series arm provides a sturdy anchor that can adapt to changing viewpoints. The 3.5\" length, dual sockets, and the option for anti-theft hardware create a versatile foundation for configurations that require frequent re-aiming or multi-angle perspectives. The black finish adds a restrained, professional look that blends with rugged equipment and vehicle dashboards alike.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo powerful mounting points maximize angle options while keeping a compact profile.\u003c\/li\u003e\n  \u003cli\u003eSolid metal construction and tested load considerations help support a range of devices in dynamic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What devices are compatible with the Tackform 3.5\" Long Metal 20mm Ball and Socket Arm?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports 20mm ball-and-socket systems, including brands like Bulletpoint, 67 Designs, and iBOLT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the purpose of the optional anti-theft knob?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The optional anti-theft knob adds security and helps prevent loosening if not fully tightened.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tackform","offers":[{"title":"Default Title","offer_id":42466411839573,"sku":"B0CQ737QXX","price":34.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/tackform-duralock-20-series-arm-dual-sockets.jpg?v=1778047432","url":"https:\/\/plentytorque.co.uk\/products\/tackform-duralock-20-series-3-5-inch-ball-socket-arm-dual-20mm-sockets-optional-anti-theft-knobs-black","provider":"PlentyTorque","version":"1.0","type":"link"}