Home » Compliance Management Blog- ESG, EHS, EHSQ » New Bolt, Screw, and Stud Standards for the 1st Quarter 2016

New Bolt, Screw, and Stud Standards for the 1st Quarter 2016

Kyle Bach

Document Center, Inc. is pleased to announce that the following standards on Bolts, Screws, and Studs for Aerospace Construction are now available;


  • BS 2A-266-2A-271; 2016 Edition, Bolt, 100° Countersunk head, Hi-Torque speed drive recess, UNJF thread , split pin hole option, titanium alloy, various finishes, Classification: 80 Tf/in2 (1 100 MPa) at TA/+315 °C
  • BS 4A-114, Corrigendum 1 for 1999 Edition, Specification for corrosion-resisting steel, mushroom-headed, slotted-drive, bolts, strength class 880 MPa
  • BS A-266-A267, Replaced by BS 2A 266 2A 271, Specification for 100° countersunk head titanium alloy bolts 160 000 lbf/in2 (1100 MPa) with Hi-torque speed drive recesses
  • BS A-312, Replaced by BS ISO 12260, Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 MPa. Dimensions
  • BS A-313, Replaced by BS ISO 12261, Aerospace. Screws, pan head, internal offset cruciform ribbed or unribbed drive, pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 MPa. Dimensions
  • BS A-363, Replaced by BS ISO 9154, Bolts, with MJ threads, made of heat-resistant nickel-based alloy, strength class 1 550 MPa. Procurement specification
  • BS EN 4072, 2016 Edition, Aerospace series. Screws, 100$0D countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated. Classification: 1 100 MPa (at ambient temperature) / 425 $0DC
  • BS EN 4128, 2016 Edition, Aerospace series. Bolts, normal hexagonal head, coarse tolerance shank, short thread, in heat resisting nickel base alloy, aluminium IVD coated. Classification: 1 250 MPa (at ambient temperature) / 425 °C
  • BS EN 4162, 2016 Edition, Aerospace series. Screws 100° countersunk normal 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
  • BS EN 4163, 2016 Edition, Aerospace series. Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated. Classification: 1 100 MPa (at ambient temperature) / 235 °C
  • BS ISO 9154, 2016 Edition, Aerospace. Bolts, with MJ threads, made of heat-resistant nickel-based alloy, strength class 1 550 MPa. Procurement specification
  • BS ISO 12260, 2016 Edition, Aerospace. Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa. Dimensions
  • BS ISO 12261, 2016 Edition, Aerospace. Screws, pan head, internal offset cruciform ribbed or unribbed drive, pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa. Dimensions
  • ISO 9154, 2nd Edition, Aerospace – Bolts, with MJ threads, made of heat-resistant nickel-based alloy, strength class 1 550 MPa – Procurement specification
  • ISO 12260, 2nd Edition, Aerospace – Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa – Dimensions
  • ISO 12261, 2nd Edition, Aerospace – Screws, pan head, internal offset cruciform ribbed or unribbed drive, pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa – Dimensions