DIN EN 4161:2019 pdf free.Aerospace series一Screws, pan head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated – Classification: 1 100 MPa (at ambient temperature) / 235 °C.
1 Scope
This document specifies the characteristics of screws, pan head, offset cruciform recess, normal shank,long thread, in alloy steel, cadmium plated. Classification: 1 100 MPa1)/235 °C2).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2133, Aerospace series 一Cadmium plating of steels with specified tensile strength ≤1450 MPa, copper, copper alloys and nickel alloys EN 2137, Aerospace series一Steel FE-PL75一1100 MPa≤Rm≤1250 MPa- Bars 一De≤100 mm3) EN 2424, Aerospace series一Marking of aerospace products EN 2442, Aerospace series- Steel FE-PL711- 1100 MPa Ss Rm≤1300 MPa- Bars and wires 一 De≤25 mm3) ISO 3353-1, Aerospace series – Lead and runout threads一Part 1: Rolled external threads ISO 5855-2, Aerospace series一M] threads一Part 2: Limit dimensions for bolts and nuts ISO 7689, Aerospace series 一Alloy steel bolts with strength classification 1100 MPa and M] threads一 Procurement specification ISO 7913, Aerospace series一Bolts and screws, metric一Tolerances of form and position ISO 14275, Aerospace series一Drives, internal, offset cruciform, ribbed一Metric series ISO 14276, Aerospace series一Drives, internal, offset cruciform一Metric series TR 3775, Aerospace series一Bolts and pins一Materials 3 Terms and definitions  No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: 一IEC Electropedia: available at http:/ /www.electropedia.org/ 一ISO Online browsing platform: available at http:/ /www.iso.org/ obp 4 Required characteristics
4.1 Configuration – Dimensions – Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres and apply after surface treatment.4.2 Tolerances of form and position ISO 7913. 4.3 Materials EN 2137, EN 2442 or TR 3775 (alloy steel, classification 1 100 MPa].  4.4 Surface treatment EN 2133, 8 μm to 14 um, on all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous deposit shall be present, but no value is specified. Black colour option: code B.DIN EN 4161 pdf download.