BS EN 4072:2016 pdf download – Aerospace series — Screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated — Classification: 1100 MPa (at ambient temperature) / 425 °C
1 Scope
This standard specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread, in titanium alloy, aluminium IVD coated.
Classification: 1 100 MPa 1) / 425 °C 2) .
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2424, Aerospace series — Marking of aerospace products
EN 4016, Aerospace series — Oversized bolts
EN 6118, Aerospace series — Process specification — Aluminium base protection for fasteners
EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defense Organizations
EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts
ISO 3353-1, Aerospace — Lead and runout threads — Part 1: Rolled external threads
ISO 5855-2, Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts
ISO 5856, Aerospace — Screws, 100 degrees normal countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated,strength classes less than or equal to 1 100 MPa — Dimensions
ISO 7913, Aerospace — Bolts and screws, metric — Tolerances of form and position
ISO 9152, Aerospace — Bolts, with MJ threads, in titanium alloys, strength class 1 100 MPa — Procurement specification
ISO 14275, Aerospace — Drives, internal, offset cruciform, ribbed — Metric series
ISO 14276, Aerospace — Drives, internal, offset cruciform — Metric series
TR 3775, Aerospace series — Bolts and pins — Materials
MIL-DTL-83488, Coating, aluminum, high purity
3 Required characteristics
3.1 Configuration — Dimensions — Masses
See Figure 1 and Table 1.
Dimensions and tolerances are: in conformity with ISO 5856, expressed in millimetres and apply after surface treatment.
Details of form not stated are left to the manufacturer’s discretion.
3.2 Tolerances of form and position
ISO 7913.
3.3 Materials
TR 3775: titanium alloy, strength class 1 100 MPa.BS EN 4072 pdf download.