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Screw threads

Standards in development (98)

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Standard TitleStatus
BS 2SP 90:2008/Amd 1 Specification for corrosion-resisting steel split cotter pins foraircraft - Inch seriesIdea
BS 3A 117:1962+A2 Specification for corrosion-resisting steel pan head bolts (Unified threads) for aircraftPublication
BS A 266 to A 271 - Bolt, 100° Countersunk head, Hi-Torque speed drive r ecess, UNJF thread, split pin hold option, titanium alloy, various finis hes, Classification: 80 Tf/in2 (1 100 MPa) at TA/+315 °CApproval
BS A31-54 Specification for British Association (B.A.) low tensile screws and nutsfor aeronautical purposesPublic Comment
BS EN 15048-1 Non-preloaded structural bolting assemblies Part 1: General requirementsPublication
BS EN 15048-2 Non-preloaded structural bolting assemblies Part 2: Suitability testPublication
BS EN 2811 Aerospace series - Nuts, hexagon, slotted/ castellated in steel cadmiumplated - Classification: 1 100 MPa/235 °CPublication
BS EN 2879 Aerospace series - Nuts, anchor, self-locking, air resistant, sealing, floating, two lug, with counterbore, in corrosion resisting steel, passivated, MoS2 lubricated - Classification: 900 MPa (at ambient temperature) / 235°CPublication
BS EN 3572 PTFE flexible hose assembly with convoluted inner tube and titanium 8 degrees 30 mn coupling - Product standardPublication
BS EN 3672 Aerospace series - Shank nuts, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy), silver plated, for 30° swage - Classification: 1 210 MPa (at ambient temperature)/730 °CPublication
BS EN 3875 Aerospace Series - Metallic Materials - Filler metal for brazing - T Technical SpecificationPublication
BS EN 3879 Aerospace series - Metallic materials - Filler metal for welding - Technical SpecificationPublic Comment
BS EN 3902 Washers for rivet assemblies, in aluminium alloy, anodized, metric seriesApproval
BS EN 3903 Washers, laminated, in corrosion resisting steelApproval
BS EN 3908 Aerospace series - Nipples, lubricating, axial type, in corrosionresisting steel, passivatedApproval
BS EN 4072 Aerospace series — Screws, 100 ° countersunk normal head, offset cruciform recess, close tolerance normal shank,short thread, in titanium alloy, aluminium IVD coated - Classification : 1100 Mpa (at ambient temperature) / 425°CPublication
BS EN 4073 Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature) / 235 °CPublication
BS EN 4128 Bolts, normal hexagonal head, coarse tolerance normal shank, short thread, in heat resisting nickel base alloy, aluminium IVD coated - Classification : 1250 MPa (at ambient temperature) / 425 °CPublication
BS EN 4138 Screws, pan head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification : 1100 MPa (at ambient temperature) / 235 °CPublication
BS EN 4162 Screws, 100 ° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature) / 235 °CPublication
BS EN 4163 Screws, 100 ° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification : 1100 MPa (at ambient temperature) / 235°CPublication
BS EN 4178 Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, anodized, MoS2 lubricated - Classification: 1100 MPa (at ambient temperature)/315 °CPublication
BS EN 4184 Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45°, welded ends, doublePublic Comment
BS EN 4297 Aerospace series - Nuts, hexagon, self-locking by plastic ring, normal height, normal across flats, in corrosion resisting steel, passivated - Classification: 900 MPa (at ambient temperature) / 120 °CApproval
BS EN 4309 Nuts, hexagon, self-locking by plastic ring, normal height, normqal across flats, in alloy steel, cadmium plated-Classification: 900 MPa (at ambiant temperature) / 120°Approval
BS EN 4400-4 Aerospace series - Aluminium and aluminium- and magnesium- alloys - Technical specification Part 4:Aluminium and aluminium alloy tubePublic Comment
BS EN 4534-2 Aerospace series - Bushes, plain in aluminium alloy with self-lubricating liner, elevated load Part 2: Dimensions and loads - Inch seriesPublication
BS EN 4535-2 Aerospace series - Bushes, flanged in aluminium alloy with self-lubricating liner, elevated load Part 2: Dimensions and loads - Inch seriesPublication
BS EN 4677-002 Aerospace series - Welded and brazed assemblies for aerospace constructions Electron beam welding machine Part 002 : Qualification specificationsPublic Comment
BS EN 4697 Aerospace series - General and Installation Requirements for Passenger Seat FittingsPublication
BS EN 6080 Aerospace series - Rivet, 100° normal flush head, close tolerance - InchseriesPublication
BS EN 6081 Aerospace series - Rivet, universal head, close tolerance - Inch seriesPublication
BS EN 6090 Aerospace series - Washer, retainingApproval
BS EN 6092 Aerospace series - Receptacle, floating, double lugApproval
BS EN 6094 Aerospace series - Washer, spring, countersunkApproval
BS EN 6101 Aerospace series - Rivet, 100° medium flush head, close tolerance - Inch seriesApproval
BS EN 6105 Aerospace series - Stud with shoulderApproval
BS EN 6123 Fitting end, 24° internal cone, external thread, flareless type, size 04 up to 20, tube diameter 1/4 inch <= D <= 1 1/4Publication
BS EN 6129 Aerospace series - Blind bolt, Protruding head, high strengthApproval
BS EN STAN 8.4301 Aerospace series - Welded and brazed assemblies for aerospace constructi ons - Joints of metallic materials by electron beam welding - Quality ofwelded assembliesnull
BS ENISO 4033 Hexagon high nuts (style 2) - Product grades A and BPublic Comment
BS ENISO 4034 Hexagon regular nuts (style 1) - Product grade CPublic Comment
BS ENISO 10484 Fasteners - Widening test on nutsPublic Comment
BS ENISO 10511 Prevailing torque hexagon thin nuts (with non-metallic insert) - Product grades A and BPublic Comment
BS ENISO 10511:2012 + C1 Prevailing torque type hexagon thin nuts (with non-metall ic insert)Accepted
BS ENISO 10512 Prevailing torque hexagon regular nuts (with non-metallic insert), with fine pitch thread - Product grades A and BPublic Comment
BS ENISO 10513 Prevailing torque (all-metal) hexagon high nuts, with fine pitch thread - Product grades A and BPublic Comment
BS ENISO 16228 Fastners - Certificates - Test reportsPublic Comment
BS ENISO 1891-4 Fasteners - Terminology Part 4: Controls, inspection, delivery, acceptance and qualityPublic Comment
BS ENISO 3506-1 Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studsAccepted
BS ENISO 3506-2 Mechanical properties of corrosion-resistant stainless steel fasteners Part 2: NutsAccepted
BS ENISO 4032 Hexagon regular nuts (style 1) - Product grades A and BPublic Comment
BS ENISO 4035 Hexagon thin nuts chamfered (style 0) - Product grades A and BPublic Comment
BS ENISO 4759-3 Tolerances for fasteners Part 3: Plain washers for bolts, screws and nuts - Product grades A and CApproval
BS ENISO 7040 Prevailing torque hexagon regular nuts (with non-metallic insert) - Product grades A and BPublic Comment
BS ENISO 7042 Prevailing torque (all-metal) hexagon high nuts - Product grades A and BPublic Comment
BS ENISO 7719 Prevailing torque (all-metal) hexagon regular nuts - Product grades A and BPublic Comment
BS ENISO 8673 Hexagon regular nuts (style 1), with fine pitch thread - Product grades A and BPublic Comment
BS ENISO 8674 Hexagon high nuts (style 2), with fine pitch thread - Product grades A and BPublic Comment
BS ENISO 8675 Hexagon thin nuts (style 0) chamfered, with fine pitch thread - Product grades A and BPublic Comment
BS ISO 4161 Hexagon high nuts with flange - Product grades A and BPublic Comment
BS ISO 10663 Hexagon high nuts with flange, with fine pitch thread - Product grades A and BPublic Comment
BS ISO 10959 Aerospace - MJ threads - GaugingPublication
BS ISO 11218 Aerospace - Cleanliness classification for hydraulic fluidsPublic Comment
BS ISO 12125 Prevailing torque hexagon high nuts with flange (with non-metallic insert), with fine pitch thread - Product grades A and BPublic Comment
BS ISO 12126 Prevailing torque (all-metal) hexagon high nuts with flange, with fine pitch thread - Product grades A and BPublic Comment
BS ISO 12260 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 - DimensionsPublication
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 1 100 MPa - DimensionsPublication
BS ISO 12289 Aerospace - Rivets, solid, in corrosion-resisting steel - Procurement specificationApproval
BS ISO 18170 Aerospace - AC Induction Electric Motor Driven, Variable Delivery, Hydraulic Pumps - General SpecificationsAccepted
BS ISO 18487 Aerospace series - Titanium Tubing - 35 MPa Operating PressureAccepted
BS ISO 23748 Title missingPublic Comment
BS ISO 2901 ISO metric trapezoidal screw threads - Basic profile and maximum material profilesPublic Comment
Opens a new windowBS ISO 2902 ISO metric trapezoidal screw threads - General planPublic Comment
Opens a new windowBS ISO 2903 ISO metric trapezoidal screw threads - TolerancesPublic Comment
BS ISO 3203 Aerospace - Bolts, normal bihexagonal head, normal or pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - DimensionsPublic Comment
BS ISO 3209 Aerospace - Nuts, anchor, self-locking, floating, two lug, with counterbore, with MJ threads, classifications: 1 100 MPa (at ambient temperature )/235 degrees C, 1 100 MPa (at ambient temperature )/315 degrees C and 1 100 MPa (at ambient temperature)Publication
BS ISO 3269 Fasteners - Acceptance inspectionIdea
BS ISO 7041 Prevailing torque hexagon high nuts (with non-metallic insert) - Product grades A and BPublic Comment
BS ISO 7043 Prevailing torque hexagon high nuts with flange (with non-metallic insert) - Product grades A and BPublic Comment
BS ISO 7044 Prevailing torque (all-metal) hexagon high nuts with flange - Product grades A and BPublic Comment
BS ISO 7257 Aircraft - Hydraulic tubing joints and fittings - Rotary flexure testPublic Comment
BS ISO 7481 Aerospace - Nuts, self-locking, with maximum operating temperature less than or equal to 425 degrees C - Test methodsPublic Comment
BS ISO 8168 Aerospace - Bolts, with MJ threads, made of heat and corrosion resisting steel, strength class 1 100 MPa - Procurement specificationPublic Comment
BS ISO 8278 compensated, variable delivery pumps - General requirementsPublication
BS ISO 8575 Aerospace - Fluid systems - Hydraulic system tubingPublic Comment
BS ISO 898-3 Mechanical properties of fasteners made of carbon steel and alloy steel Part 3: WashersAccepted
BS ISO 9154 Aerospace - Bolts, with MJ threads, made of heat-resistant nickel-based alloy, strength class 1 550 MPa - Procurement specificationPublication
BS ISO 9206 hydraulic motors - General specificationsPublication
BS ISO 9528 Aerospace - Standard-weight polytetrafluoroethylene (PTFE) hose assemblies, classification 204 degrees C/21 000 kPa - Procurement specificationPublic Comment
BS ISO 9538 Aerospace - Hydraulic tubing joints and fittings - Planar flexure testPublic Comment
BS ISO 9609 Aerospace - Nuts, hexagonal, plain, reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature) /120 degrees C, 450 MPa (at ambient temperature) /235 degrees C, 600 MPa (at ambient temperature) /425 degreesApproval
BS ISO 9618 Aerospace - Nuts, hexagonal, slotted (castellated), reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature)/120 degrees C, 450 MPa (at ambient temperature)/235 degrees C, 600 MPa (at ambient temperaturePublication
BS ISO 9938 Aerospace - Polytetrafluoroethylene (PTFE) hose assemblies, classification 204 degrees C/28 000 kPa - Procurement specificationPublic Comment
BS SP 55 and 56:1953/AMD3 coil spring washers for aircraftPublication
BS SP 94:1964/Amd 3 Specification for bronze oil-retaining bushes and thrust washers - For aircraftApproval
BSEN 2978 Aerospace series - Pipe coupling 24 degrees in titanium alloy - Elbows 90 degreesIdea
PD CEN/TR 4541 Instruction for the installation of airframe bearingsPublic Comment

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Published standards (16)

Sort by: Reference | Title | Status

Standard referenceNameStatus
BS EN 4493:2008Aerospace series. Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH1801 (NIP96HT, Nimonic 90), silver platedCurrent
BS EN 3274:2010Aerospace series. Pipe coupling 8°30'. Thread end. Geometric configurationCurrent
BS EN 3274:2001Aerospace series. Pipe coupling 8°30'. Thread. Geometric configurationsWithdrawn
BS EN 4178:2009Aerospace series. Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, anodized, MoS2 lubricated. 1100 MPa (at ambient temperature) / 315 °CCurrent, Work in Hand
BS 6293-3:1994Aerospace. MJ threads - Limit dimensions for fittings for fluid systemsWithdrawn
BS 6293-1:1994Aerospace. MJ threads - General requirementsWithdrawn
BS 6293-2:1994Aerospace. MJ threads - Limit dimensions for bolts and nutsWithdrawn
BS ISO 10959:2000Aerospace. MJ threads. GaugingCurrent
BS ISO 15872:2002Aerospace. UNJ threads. GaugingCurrent
BS A 358-2:2000MJ threads - Limit dimensions for bolts and nutsCurrent
BS A 358-1:2000MJ threads - General requirementsCurrent
BS A 358-3:2000MJ threads - Limit dimensions for fittings for fluid systemsCurrent
BS 2A 231:1993Rolled threads for bolts. Lead and runout requirementsCurrent
BS 4084:1978Specification for UNJ threads, with controlled root radius, for aerospace: inch seriesWithdrawn
BS 4084:1996UNJ threads, with controlled root radius, for aerospace. Inch seriesWithdrawn
BS A 346:2000UNJ threads. General requirements and limit dimensionsCurrent

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