Dimensions of Square Head Bolt in Thule XADAPT9 Load Bar Adapter

Question:

Question, would you show me the size of the t-bolts come in Thule XADAPT9? Whats the diameter? Whats the bolt length? Thank you.

asked by: Akio K

Expert Reply:

I went out to the warehouse to find the measurements you are asking for on the square head bolt in the Thule XADAPT9 Kit # THXADAPT9. The square head bolt is available individually as # 853-208909.

The diameter of the square head bolt in the # THXADAPT9 kit is approximately 0.23 inches.

The bolt length measures 1 inch long. Including the head of the bolt I found the overall length to be 1.19 inches (1-3/16 inches).

The bolt head measures 0.75 inches x 0.75 inches (3/4 inches x 3/4 inches).

I have attached a photo showing these measurements for you.

This kit is designed to allow you to mount Thule roof mount bike racks like the Echelon, Peloton, Prologue and 1st generation Sidearm to the Thule Rapid Aero, AeroBlade, and Xsporter load bars. If you would like to let me know which Thule product you are wanting to mount and to what style crossbar, I will be happy to find the right adapter kit for you.