This genuine Welger 1257451653 bolt is an original equipment manufacturer (OEM) part, designed for secure fastening in Welger AP series square balers. It features an M16 thread with a 1.5 pitch, a diameter of 16mm, and a length under the head of 53mm, with a hardness rating of 8.8. This high-quality bolt ensures reliable performance and proper fitment for various Welger baler models, including AP41, AP42, AP45, AP50, AP51, AP52, AP53, AP61, AP63, AP71, AP73, AP83, AP200, AP230, AP400, AP500, AP600, AP630, and AP730.