offers 1,778 shortening hooks products. A wide variety of shortening hooks options are available to you, such as material, feature, and design style.Lifting Clevis Grab Hook 10MM Grade 80 (3.15 Ton Shortening Clutch Chain Hook 3.15T) Item in Stock ( 9970 Available) Product Code: SFYASCGH10. This Clevis Grab Hook Is Suitable For Use On Chains For Shortening Them. RRP: £ 8.47. £7.70. Login to add this product to your wishlist. You Will Earn 7 points which is the equivalent of £0.07.Eye Hook Turnbuckle To Din1480,Powerful Permanent Magnet Lifter Wholesaler,,Stainless Steel Spring Snap Hook,Heavy Duty Alloy Welding Supplier,Heavy Duty Swivel Eye Supplier,Heavy Duty Equipment Supplier,Rigging Hardware Din582 Ring Nut,Heavy Duty Shackle Stainless Supplier,Heavy Duty Ring Screw Supplier,Heavy Duty …ASTM A906/A906M-2 states that when a new chain sling is manufactured, there is an allowable difference in length between the hooks on multiple leg chain slings. The maximum difference in length is 5/16” for slings up to 6-1/2 ft. in length. Then, for every additional ease by an additional 5/32”.