1390Pcs Black Grade 12.9 Cylindrical Head Inner Hexagon with Flat Pad Nut Set Cup Head Screw Box

Size: cm fastener Specifications: 1390pcs cylindrical head hexagonal set Purpose: Standard Nail Type: Screw Applicable industries: sports equipment Head shape: cylindrical head Standard: DIN 912 Material: 40Cr (alloy steel) Strength Rating: 12.9 Product grade: A grade Surface treatment: oxidized black This set of products covers all kinds of basic accessories and special tools, and is created through fine processing technology and multiple quality inspection processes to ensure that each product is accurate in size and stable in structure, and is suitable for use needs in multiple scenarios. Whether it is the installation and fixation of daily households, the connection and combination of home decoration, the fastening support of industrial operations, and the precision coordination of mechanical maintenance, it can provide stable and reliable usage performance. The product has both wear resistance and use resistance, complies with industry safety standards, and easily meets core needs such as fastening, connection, and support. From home scenarios to industrial environments, we use solid quality to help efficient work and life convenience, and adapt to the functional needs of diverse use scenarios.