UNF 7/16'' 1/2'' 9/16'' Carbon steel Galvanized eye Nut Customized Zinc Plating Metal nut

Eye nuts are essential fastening components that connect mechanical equipment through internal threading, allowing secure attachment to screws of matching specifications. These nuts are commonly used with external threaded columns for lifting various equipment including molds, chassis, and motors.

Standard eye nuts typically have no surface treatment, but can be customized with galvanized passivation, chrome plating, or other finishes according to GB5267-85 specifications. Post electrogalvanizing, materials undergo chemical composition and mechanical property testing per GB699 standards. Thread inspection is performed using specialized gauges.

• Discard immediately if visible deformation occurs
• Select reduced load capacity when lifting with acceleration or impact
• For 45° lifting angles, use sinking holes and washers to ensure proper alignment (within 5° of plane containing axis)
• Heat-treated special steel may have reduced ductility and increased fracture risk

• High strength: Withstands significant external forces and pressures for construction, automotive, and aerospace applications
• Excellent wear resistance: Ideal for tools, machine parts, and industrial equipment
• Superior plasticity: Easily formed through cold working, hot working, and forging processes
• Cost-effective: Economical production makes it competitive for large-scale industrial use

• Corrosion susceptibility: Requires protective coatings when exposed to moisture or acidic environments
• Lower shock resistance: May deform under vibration compared to high-strength alloys

Zinc plating provides both aesthetic appeal and rust resistance, with available finishes including silver-white zinc or passivated colors (white, colored, army green).