Strong, good quality, secure packaging. Overall, these are great spline nuts for the price. The lathe is rated for heavy loads too. Very happy to install them with my new wheels. I would recommend them for the price!
Pros
Specifications: Pitch m12 x 1.5, overall height 1.38" (35mm), width 0.79" (20mm), closed end 60 degrees, 1 free socket wrench 3/4" (19mm) and 13/16" (21mm)