Aerospace construction fasteners

prEN 3240 - Aerospace series - Nut, self-locking, clip, in heat resisting steel FE PA2601 (A286), uncoated - Classification: 1 100 MPa (at ambient temperature)/425 °C
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 07 May 2026
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prEN 3241 - Aerospace series - Nut, self-locking, clip, in heat resisting steel FE PA92HT (A286), silver coated - Classification: 1 100 MPa (at ambient temperature)/425 °C
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 07 May 2026
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prEN 4138 - Aerospace series - Screw, pan head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature)/235 °C
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 07 May 2026
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prEN 4178 - Aerospace series - Screw, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature)/315 °C
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 07 May 2026
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prEN 4909 - Aerospace series - Screw, hexagon head, flanged, with six-lobe recess, composite, inch series
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 14 May 2026
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prEN 4910 - Aerospace series - Screw, hexagon head, flanged, with six-lobe recess, composite, inch series - Technical Specification
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 14 May 2026
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prEN 6117 - Aerospace series - Specification for lubrication of fasteners with cetyl alcohol
Categories: Aerospace construction fasteners
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 21 May 2026
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ISO/DIS 12257 - Aerospace — Drives, internal, TORX® drive — Geometrical definition, gaging, technical and quality requirements
Categories: Aerospace construction fasteners
Committee: ISO/TC 20/SC 4 (Aerospace fastener systems)
Origin: ISO
Close date: 08 Jun 2026
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ISO/DIS 18700 - Aerospace — Drives, internal, TORX PLUS® drive — Geometrical definition, gaging, technical and quality requirements
Categories: Aerospace construction fasteners
Committee: ISO/TC 20/SC 4 (Aerospace fastener systems)
Origin: ISO
Close date: 08 Jun 2026
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ISO/DIS 25765 - Aerospace — Drives, internal, TORX® driver bit — Geometrical definition, gaging and technical requirements
Categories: Aerospace construction fasteners
Committee: ISO/TC 20/SC 4 (Aerospace fastener systems)
Origin: ISO
Close date: 08 Jun 2026
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ISO/DIS 25855 - Aerospace — Drives, internal, TORX PLUS® driver bit — Geometrical definition, gaging, technical and quality requirements
Categories: Aerospace construction fasteners
Committee: ISO/TC 20/SC 4 (Aerospace fastener systems)
Origin: ISO
Close date: 08 Jun 2026
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