Self-Locking Large Opening Shackle - 6mm Diameter - 1/4"Features: Self-locking large shackle forged in grade 316L stainless steel The pin is locked into one of the indentations No risks of loosening due to vibrations Outstanding working and breaking loads WLL: only for industrial applications (lifting i.ea |) CE marking Applications: For applications where a large opening shackle is requiredSpecifications: Materials 316 stainless steel grade Working load: (lb) 990 / (kg) 450 WLL: (lb) 660 / (kg) 300 Breaking load: (lb) 3300 / (kg) 1500 Weight: (lb) 0.06 / (g) 27 Dimensions: A: (inch) 1 21/32" / (mm) 42 B: (inch) 1 / (mm) 25.5 C: (inch) 15/64" / (mm) 6 D: (inch) 35/64" / (mm) 14 D diameter: (inch) 15/64" / (mm) 6 E: (inch) 15/64" / (mm) 6 F: (inch) 2 9/32" / (mm) 58 G: (inch) 1 47/64" / (mm) 44 Caption: Working Load (WL): For nautical applications Working Load Limit (WLL): For industrial applications only. The safety factor is 5 times the breaking load.WLL = Breaking load / 5 *Sold as an Individual Quick Guide (pdf)