OST 1 13449-78 Screw clamps
Instead of the normal 1721S54.
Clamps according to OST 1 13449-78 are special fasteners, since its the design consists of a tape with holes along the edges and a lock with a screw, they can be used to connect hoses in hydraulic and pneumatic systems (fuel, water).
DESIGN AND TECHNICAL FEATURES
The structure of the clamp consists of a metal tape and a lock with a screw.
The material of manufacture must be steel.
The clamps are coated with zinc, chromium, nickel, cadmium, etc. workshop. A multilayer coating is also available, such as copper-nickel (MN) or copper-nickel-chromium (MNX.6). After such processing, the clamps serve reliably in aggressive environments.
OST 1 13449-78.pdf
An example of the name and designation of a screw clamp of standard size 1:
An example of designation: Screw clamp 1-OST 1 13449-78
These clamps are used in many industries. In particular, an increased demand for products is observed in the aircraft and machine-building industries, as well as in construction, energy and metalworking, where such clamps are used for flange connections of aluminum alloy pipelines for air, fuel and oil systems.