What are the Dimensions, Thread Pitch, and Size of the Threads on the Buyer's Products J-Hook?

Updated 09/02/2026 | Published 08/20/2026

Question:

What is the thread pitch and size of the threads on the j hook? What are dimensions? Can you provide photos of j hook next to tape measure?

asked by: Ken R

Expert Reply:

Hi Ken,

The thread and pitch of the Replacement J-Hook for Buyers Product Ladder Racks part # BP88MR is M12-1.75. This means it has a 12 mm nominal diameter with a 1.75 mm coarse thread pitch.

I'm not able to add photos next to a tape measure but I went out to our warehouse and measure the hook for you. The hook's overall length is 4 3/8" long. There is a 1" wide gap between the threaded portion and the plate and the flat plate is 2 1/8" long x 1" wide. The threaded portion of the hook is 2 3/8" long. I've created diagrams showing the measurements I took as well.

Are you wanting to use this to install a Buyers Products ladder rack or for something else?

expert reply by: Claire H