This European standard specifies the characteristics of screws@ pan head@ offset cruciform recess@ close tolerance normal shank@ short thread@ in alloy steel@ cadmium plated. Classification: 900 MPa1)/ 235 ??). 1) Minimum tensile strength of the material at ambient temperature. 2) Maximum temperature that the screw can withstand without continuous change in its original characteristics@ after return to ambient temperature. The maximum temperature is determined by the surface treatment.
PREN 2886-2018由ASD-STAN - Aerospace and Defence Industries Association of Europe - Standardization 发布于 2018-09-01,并于 2018-10-06 实施。
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