M5 Female Thread Marine Metal Lifting Eye Nuts Ring 4pcs Main Material: Metal; Package Content: 4 x Lifting Eye Nuts; Product Name: Lifting Eye Nut Weight: 39g; Main Color: Silver Tone Total Height (h): 22mm/ 0.87"; Thread Diameter (d1): M5 (Female) d2 Size: 12mm/ 0.47" (Dia.); Eye Size: (d4 x d3) 12x22mm/0.47" x 0.8" (Inner D*OD) Ring Thickness: 5mm/0.2"; Thraed Length (e): 5mm/0.2"