Overview
An ISO 8102 bolt with a serrated flange is called a self-tightening bolt because it is able to increase the adhesion force to the substrate, thereby preventing the fastener from loosening. In addition, the press washer protects the seat from damage by increasing the support area. The majority of the ISO 8102 bolt range is classified as high-strength fasteners. This is due both to the types of materials used in the production and to their design. This type of bolt has a cylindrical base with a full/incomplete metric thread and a hexagonal head with a flange in the form of a press washer. The flange can be flat, as well as have a grooved lower surface of the head or locking teeth.
Strength class ISO 8102
The strength class of a bolt is the maximum applied force at which the bolt begins to fracture. The ISO 8102 flange bolt is manufactured only from high-strength steel with strength classes 8.8 and 10.9.
Fastening group ISO 8102
Depending on the material of manufacture, the ISO 8102 bolt is divided into different fastener groups:
- High-strength fasteners - fasteners made of steel with a strength class of 8.8 or higher.
- Stainless fasteners - fasteners made of stainless steel.
Materials of manufacture ISO 8102
The ISO 8102 flange bolt is available in the following materials:
- Steel, which can be optionally coated with hot-dip, ordinary, yellow and plate zinc
- Stainless steel (A2, A4) does not need to be coated
Where are ISO 8102 flange / toothed flange bolts used?
The ISO 8102 bolt is used in wet and outdoor environments, structures in solar installations. In addition, the scope of application directly depends on the material of manufacture and the coating of the product:
- Galvanized steel provides good corrosion protection if the fastener is to be used in aggressive environments.
- Stainless steel allows the fasteners to be used at significant temperature changes and in aggressive and humid environments.
You can buy ISO 8102 in Ukraine in our online store.
