The Light Source Turnbuckle, Adjustable 8–12 in with X3V Corner Mounting Plate in silver is a specialized rigging component engineered to add both adjustability and structural interface versatility in professional truss, staging, and AV installations. Built as part of the Mega‑Turnbuckle family, this version extends the basic turnbuckle’s internal adjustment range to accommodate spacing needs between 8 in and 12 in by pairing the core adjustment mechanism with an X3V corner mounting plate accessory. This design allows it to serve multiple roles: from creating precise spacing between structural elements to offering a solid mounting surface where multiple attachments converge at a 90° corner point. Such flexibility is especially valuable in complex rigging situations like video wall leveling, custom bracket work, or modular stage framework setups that require both distance control and a dependable corner attachment interface.

At its core, the turnbuckle assembly features a 3/4″‑6 TPI Acme threaded rod and a 1‑1/2″ aluminum barrel that provide smooth, secure adjustment throughout its range. This mechanism enables technicians to dial in exact spacing between structural members while maintaining a strong connection — a capability essential when aligning video panels, truss sections, or support bars in a level, safe configuration. The internal 3/8″‑16 TPI threaded ends allow for the secure addition of compatible fittings, with the included X3V corner plate providing a built‑in structural attachment point ideal for mating with cubical or orthogonal hardware.

Constructed from aircraft‑grade aluminum with a silver finish, this turnbuckle assembly combines strength with corrosion resistance suitable for touring, rental, and permanent installations. Its working load limit is around 1,100 lb, ensuring it can handle significant tension and compression loads when installed per industry rigging practices. The addition of the corner mounting plate expands its utility beyond simple spacing adjustment, making it a modular, multifunctional tool in any professional rigger’s inventory.