Thread as per ISO 6H (ISO 68-1). Corrosion resistance min. 400 hours against red rust in salt spray test (according to ISO 9227).
Advantages: • Easy pre-positioning of the parts to set prior to tightening (for heavy and large components or concealed installation) • Production of a reusable screw thread complying with screw property class 8.8 • Simple and economical installation • Flexibility • Environmental compatibility