Just received the carbon steel DIN931/DIN933 grade 8.8/10.9/12.9 half thread and full thread hex head bolts. The bolts are strong, precisely made, and threading is perfect for various assembly needs. Delivery was quick, packaging was secure, and specifications matched exactly. The supplier showed excellent professionalism—timely communication, flexible options, and strict quality control. Very satisfied with both product and service. Highly recommended!