Introducing our top quality product, the Black Grade 12.9 DIN 912 Cylindrical Socket Cap Screw/Allen Bolt. Made in our factory, this screw/bolt is designed for high-stress applications and can withstand the toughest environments. With a black oxide finish, it provides corrosion resistance and looks sleek. The socket cap design ensures easy installation and removal with an Allen key. The precision machining and material selection ensure the highest level of strength, durability, and reliability. Order now and experience the excellence of our products.