Hex nut according to DIN 934 standard, property class 12, plain (uncoated). Property class 12 nuts are used in applications with very high requirements for clamping force and load capacity, such as machinery, power transmission, and technical structures. The plain surface is suitable for dry environments or applications where no surface protection is required. Used together with bolts or screws of corresponding property class. Available in multiple sizes from SWEBOLT & BOTNIA BOLT.