General description These x4 M20 Galvanised Forged Straining Screw Eye Eye Turnbuckles are designed for tightening, tensioning, and adjusting various materials such as chain, rope, and cable. Their open body design makes them easy to use, and they are particularly popular in the caravaning industry due to their durability and effectiveness. Technical specifications Quantity: 4 Galvanised finish for long-lasting protection Product Code: SFFOREE20/04 Available sizes: 5 mm: A=5, B=70, C=7.5, D=117, E=164 6 mm: A=6, B=109, C=9, D=165, E=249 8 mm: A=8, B=108, C=10, D=175, E=251 10 mm: A=10, B=126, C=14, D=198, E=275 12 mm: A=12, B=125, C=16, D=230, E=315 16 mm: A=16, B=169, C=22, D=335, E=450 20 mm: A=20, B=202, C=24, D=335, E=515 21 mm: A=21, B=220, C=29, D=400, E=540 23 mm: A=23, B=250, C=29, D=445, E=610 29 mm: A=29, B=255, C=31, D=480, E=630 31 mm: A=31, B=295, C=36, D=525, E=705