Size (CM)：21*17*9

Weight (KG)：0.8

Brand

JUNXUN

Overview

The J47548-2 is a high-precision, heavy-duty Tooling Screw and Alignment Bolt Assembly custom-engineered for the structural maintenance, rigging, and overhaul (MRO) of Boeing 777 commercial aircraft fleets. Classified under the dedicated Boeing proprietary tooling and Ground Support Equipment (GSE) framework, this specialized hardware is purpose-built to act as a high-strength temporary positioning, clamping, or alignment fixture during airframe subassembly servicing. Manufactured by JUNXUN to comply with strict aerospace dimensional configurations and metallurgic tolerances, the J47548-2 features micro-polished thread profiles that guarantee smooth mechanical engagement, preventing structural cross-threading or geometric misalignment when mating critical flight control surfaces or heavy landing gear linkages.

Key Points

Dedicated Boeing 777 Engineering: Custom-machined to interface flawlessly with the standardized alignment slots, indexing holes, and fixture tracks specified in Boeing 777 technical maintenance documentation.

High-Tensile Mechanical Strength: Fabricated from premium, heat-treated alloy steel certified to withstand intense shear and tension forces without mechanical elongation or stripping under heavy rigging loads.

Corrosion and Wear Resistance: Finished with specialized aerospace-grade cadmium plating or black oxide passivation treatments to maximize tool life and prevent chemical reaction with aluminum airframe structures.

Precision Thread Geometry: Engineered with optimized pitch and close-tolerance thread limits to ensure repeatable insertion and rapid extraction, reducing technician turnaround times (TAT) in busy hangars.

Applications

Flight Control Surface Rigging: Utilized by airframe MRO technicians to temporarily anchor, secure, and align trailing-edge flaps, rudders, or slats during hydraulic actuator replacements and symmetry audits.

Heavy Component Swaps & Maintenance: Deployed as an essential structural indexing screw within powerplant or landing gear overhaul cells to maintain rigid mechanical alignment during component reassembly.

Airline Fleet Tool Crib Support: Vital tooling inventory for international airline engineering hubs to complete scheduled C-checks and D-checks requiring certified Boeing proprietary ground support hardware.