Based on this product's specifications, here are some alternatives and similar models
Nut Baks NRM8PV (model 660245) — hexagonal/locking nut for M8 applications
Summary description:
Baks NRM8PV (660245) is a fastening nut designed for M8 threaded applications. Manufactured by Baks, this nut provides secure mechanical connection for bolts and studs in assembly, repair, and maintenance tasks. Suitable for general metal and machinery fastening where an M8 nut is required. Practical for industrial, automotive, and construction uses.