Patented Twist Lock Grab Hooks are the most secure way to attach a hook to a chain. 3/8" Grade 70 Twist Lock Grab Hooks have a 4,700 lbs Wll. This spring loaded locking mechanism allows you to easily twist the lock out of the way when connecting or disconnecting to a chain link and the solidly latch the hook closed for total piece of mind during transport.
Grade 70 chain is also known as "transport chain" because it is the preferred grade of chain by the department of transportation. All protiedowns.com rigging is rated at a safe working load limit or WLL. Our Grade 70 chains and hooks are rated at a 4:1 safety factor meaning the posted WLL is 25% of the actual breaking strength.