Classic Hikers 4/3mm Size:0 (3XS) and the first rivet is

and the first rivet is 45mm in from the end of the boom face (98mm from the end of the insert you are attaching)

The Allen A8439-13  - Also known as a through deck fairlead or bush

Allen A4772HT High Load Vernier Adjuster

Additional Notes:

For use with Admiral/Bramber style single combination road trailers with 'letterbox' style attachment

Classic Hikers 4/3mm Size:0 (3XS) and the first rivet isOur Classic Hiking shorts are an iconic part of the Rooster range, being one of the first products brought out. We have developed them overtime with improved fabrics and technology to keep them at the top of their game! They have been designed with 10. 5" batten pads at the back of the upper leg, which allow for a good connection with the boat. The battens are made in 3 parts enabling them to shape around the leg for maximum comfort and hiking