HT Allen Socket CSK Screw:M10 x 55 - DIN 7991/12.9/Black/Half Thread

This M10 x 55mm high-tensile Allen socket countersunk screw is manufactured from steel to meet the DIN 7991 standard. It carries a 12.9 property class rating, indicating high strength suitable for demanding structural or mechanical applications. The fastener features a black surface finish and a half-thread design, where the threading extends across only the lower portion of the shank. Buyers select this item for its robust drive type and countersunk head, which allows for a flush finish on pre-drilled surfaces while maintaining secure torque resistance. When choosing this specification, the buyer confirms the need for M10 diameter, 55mm total length, and the specific 12.9 grade strength.