General description Eye & Eye Forged Straining Screw, Open Body Turnbuckle, designed for tightening, tensioning, and adjusting various materials such as chain, rope, and cable. These straining screws are particularly popular in the caravaning industry and feature a galvanised finish for long-lasting protection. Technical specifications Product Code: SFFOREE33/04 Quantity: 4 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 22 mm: A=21, B=220, C=29, D=400, E=540 24 mm: A=23, B=250, C=29, D=445, E=610 30 mm: A=29, B=255, C=31, D=480, E=630 33 mm: A=31, B=295, C=36, D=525, E=705