Worm clamp (long) is a fastening installed in the area of connection of two elements, at a distance from the edge of not less than 1-1.5 width of the clamp, tightened with a screwdriver, or a wrench.
Scope DIN 3017-A is used for clamping the hoses of hydraulic and pneumatic systems, various types of domestic and industrial hoses.
Material W5 bolt and band - stainless steel. The A4-70 steel grade allows you to use bolts with significant temperature changes and in an aggressive and humid environment.
Coating Zinc (Plated) protects against corrosion if you plan to use fasteners in aggressive conditions.
Analog GOST 28191-89