Grab Hook With Clevis Blue Painted Alloy Steel 1/2 Grade 100 grade-8 The inside threads have a

The inside threads have a 1-1/2-11-1/2 thread

This hexagonal bolt has a length of 12" with a threading of 1-1/4-12 [Partially Threaded]

This hexagonal bolt has a length of 5 with a threading of 1-1/2-6 [Partially Threaded]

The screw has a length of 4-1/4" and a thread of 5/16-18

Grab Hook With Clevis Blue Painted Alloy Steel 1/2 Grade 100 grade-8 The inside threads have aPop the clevis pin in to install these hooks, no extra fittings needed. Then, slide your chain into the opening of the hookit has a narrow throat that's precisely sized to grip a single link. Match your hook's grade to your chain's grade. The higher the grade, the stronger the hook. For the three grades that we offer (80, 100, and 120), each grade is about 20% stronger than the last. The hooks have a diameter of 1 2 and they are garde of 100. Note: