SPEED BASE® Hoist Rings, 2"-4 1/2, 20,000 lbs — 42400

SPEED BASE® Hoist Rings part number 42400 from ACTEK Manufacturing & Engineering. Specifications: Rated load 20,000 lbs; Thread size 2"-4 1/2; Material Alloy Steel; Finish Black Oxide (Also available: Cadmium Plated, Electroless Nickel Plated, Zinc Plated); Weight 24.00 lbs; Thread Projection 3 1/4 in; U-Bar Dia. 1 1/4 in; Plate Dia. 7 in; SwivelAngle 360°; PivotAngle 180°; SafetyFactor 5:1. Manufacturer technical notes: SPEED BASE HOIST RINGS SAFETY PRECAUTION. WARNING: PRIOR TO USING ANY HOIST RING, PLEASE READ THE FOLLOWING FOR. PROPER INSTALLATION AND USAGE. As with all mechanical devices, regular inspection for wear and strict adherence to use instruction is necessary to. prevent misuse failure. • Despite the 5:1 safety factor, NEVER EXCEED • Tensile strength of parent material should be. THE RATED LOAD CAPACITY. This safety margin above 80,000 PSI to achieve full load rating. For. is needed in case of misuse, which could drastically weaker material, consider through-hole mounting. lower load capacity. with a nut and washer on the other side. • Mount flush and tight on plate. DO NOT LEAVE • DO NOT APPLY SHOCK LOADS. Always lift. GAPS/SPACE BETWEEN BASE AND MOUNTING gradually. Repeat magnaflux testing if shock. SURFACE loading ever occurs. Manufacturer documentation: Speed Base Hoist Ring Safety Precaution.pdf.