High-Precision SCM435/4140 Rotary Union Component

Material: SCM435 Chrome-Molybdenum / AISI 4140 Alloy Steel

Heat Treatment: Hardened to HRC35–40 (Optimized for heavy-duty torque and fatigue life)

Surface Treatment: White Zinc Plating (Superior rust and oxidation protection)

Core Machining: Precision CNC Lathe Turning

Thread Specification: M28*1.5 (100% verified via through-thread plug gauge)

Key Features
High-Tensile Steel Core: Built from premium SCM435/4140 alloy, providing excellent shock resistance and structural integrity under high pressure and load.

Balanced HRC35–40 Hardness: Rigorously heat-treated to ensure deep material stability, preventing thread stripping or deformation during high-torque assembly.

Flawless M28*1.5 Threading: Masterfully turned on CNC lathes and strictly verified with an M28*1.5 through-thread gauge to ensure seamless compatibility, smooth engagement, and zero fluid bypass.

Enhanced Corrosion Defense: Coated with a uniform white zinc plating that adds a professional metallic luster while significantly extending the component’s lifespan in humid or abrasive environments.

Functional Integration: Designed with clean hexagonal wrench flats for easy installation, alongside detailed diamond knurling for maximum grip during manual adjustments.