McMaster 3028T53 Weld on Tie Down Ring, Red Painted Steel, 2100 lb Capacity G4302681 Pressure Rating High Pressure Wall Pressure Rating High Pressure Wall Thickness Rating Thick Shape Straight Fitting Type Pipe Threading Threaded on Both Ends Fitting Connection NPT Male Pipe Size 3 4" Length 2 1 2" Construction Welded Pipe Schedule 80 Material Steel Class 300 Instructions Auto Ranging Yes Audible Continuity Yes Auto Power Off Yes Frequency Measurement Resolution 45 Hz Basic DC Voltage Accuracy 1% + 1 count Basic DC Current Accuracy Not Applicable AC Response Calculation Average Features_Table Dustproof 242 SVHC) Compliant RoHS Compliance Not Compliant Schedule B Number 732690 They are also known as lashing rings