BS 4A 100:2003
Current
Current
The latest, up-to-date edition.
Specification for general requirements for bolts and free running nuts of tensile strength not exceeding 1249 MPa
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
31-07-2008
Publisher
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Committees responsible
Foreword
1 Scope
2 Material
3 Manufacture
4 Dimensions
5 Runout and lead threads for rolled threads
6 Screw thread form and class of fit
7 Anti-corrosion treatment
8 Identification marking
9 Quality assurance procedure
10 Additional requirements for cold forged and hot-forged bolts
Appendix A - Dimensions of unified thread identification features
on aircraft bolts and nuts
Publications referred to
Describes the general requirements for aerospace bolts and free running nuts of tensile strength not exceeding 1249 MPa.
| Committee |
ACE/12
|
| DevelopmentNote |
Supersedes BS 3A100(1991) & 07/30165543 DC. (03/2008) Reviewed and confirmed by BSI, December 2009. (11/2009)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies the general requirements for aerospace bolts and free running nuts of tensile strength not exceeding 1 249 MPa.
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| BS 2A173(1962) : 1962 | SPECIFICATION FOR 100 DEGREES COUNTERSUNK HEAD STEEL BOLTS (UNIFIED THREADS), CADMIUM PLATED, FOR AIRCRAFT |
| 11/30251779 DC : 0 | BS 6SP 4:2000+A3 - PINS HEADED, PLAIN SHANK, DRILLED, STEEL ALLOY AND CORROSION RESISTING STEEL WITH A STRENGTH CLASS 880/1080 MPA |
| 13/30275815 DC : 0 | BS 2A 110+A1 - SPECIFICATION FOR STEEL NUTS (UNIFIED HEXAGONS AND UNIFIED THREADS) FOR SHEAR BOLTS FOR AIRCRAFT |
| 11/30252412 DC : 0 | BS 4A 116 - STEEL PAN HEAD BOLTS (UNIFIED THREADS) (CADMIUM PLATED) FOR AIRCRAFT |
| 12/30262058 DC : 0 | BS 4A114 - SPECIFICATION FOR CORROSION-RESISTING STEEL, MUSHROOM-HEADED, SLOTTED-DRIVE, BOLTS (STRENGTH A CLASS 880/1080) |
| BS 2853:1957 | Specification for the design and testing of steel overhead runway beams |
| BS 4A 116:2012 | Steel pan head bolts (Unified threads), cadmium plated, for aircraft |
| BS 2762:1956 | Notch ductile steel for general structural purposes |
| 12/30254205 DC : 0 | BS 4A 170 + A1 - SPECIFICATION FOR ALUMINIUM ALLOY, MUSHROOM-HEADED, SLOTTED DRIVE, BOLTS (UNIFIED THREAD) |
| 10/30212959 DC : 0 | BS A 400 - SPECIFICATION FOR CORROSION-RESISTING STEEL NUTS, PLAIN AND SLOTTED (UNIFIED HEXAGONS AND UNIFIED THREADS) FOR SHEAR BOLTS FOR AIRCRAFT |
| BS 2A110(1962) : 1962 | SPECIFICATION FOR STEEL NUTS (UNIFIED HEXAGONS AND UNIFIED THREADS) FOR SHEAR BOLTS FOR AIRCRAFT |
| BS 4A170 (1999) : 1999 | SPECIFICATION FOR ALUMINIUM ALLOY, MUSHROOM-HEADED, SLOTTED DRIVE, BOLTS (UNIFIED THREAD) |
| BS 4A102(2002) : 2002 | AEROSPACE SERIES - SPECIFICATION FOR STEEL BOLTS (UNIFIED HEXAGONS AND UNIFIED THREADS) FOR AIRCRAFT |
| BS 4A104(2002) : 2002 | AEROSPACE SERIES - SPECIFICATION FOR CORROSION-RESISTING STEEL BOLTS (UNIFIED HEXAGONS AND UNIFIED THREADS), STRENGTH CLASS 880 MPA, FOR AIRCRAFT |
| 15/30281806 DC : 0 | BS A 401 TO A 420 - AEROSPACE SERIES - SPECIFICATION FOR SCREWS, PAN AND 100 DEGREES COUNTERSUNK HEAD, HEXALOBULAR DRIVE RECESS (UNIFIED THREADS BELOW 1/4 INCH), VARIOUS MATERIALS |
| 12/30264058 DC : DRAFT JULY 2012 | BS 4A 113 A1 - SPECIFICATION FOR CADMIUM-PLATED, MUSHROOM-HEADED, UNIFIED-THREAD, SLOTTED DRIVE, BOLTS |
| BS A 400:2010 | Specification for nuts, plain and slotted (unified hexagons and unified threads) for shear bolts for aircraft in corrosion-resisting steel |
| BS 3A117(1962) : 1962 | AEROSPACE SERIES - BOLTS, PAN HEAD, SLOTTED DRIVE, UNIFIED THREADS, CORROSION RESISTING STEEL, STRENGTH CLASS 880 MPA, FOR AIRCRAFT - SPECIFICATION |
| 15/30266106 DC : 0 | BS 3A 117:1962+A2 - SPECIFICATION FOR CORROSION-RESISTING STEEL PAN HEAD BOLTS (UNIFIEDTHREADS) FOR AIRCRAFT |
| BS 4A113(1999) : 1999 | AEROSPACE SERIES - SPECIFICATION FOR CADMIUM-PLATED, MUSHROOM-HEADED, UNIFIED-THREAD, SLOTTED DRIVE BOLTS |
| BS 3A 174:2012 | 100° Countersunk head, D-slot recess, corrosion-resisting steel bolts (Unified threads), Strength Class 880 MPa, for aircraft |
| BS 2A 260-2A 265:2010 | Specification for pan and 100° countersunk slotted head screws with ISO metric screw threads |
| BS 4A114(1999) : 1999 | SPECIFICATION FOR CORROSION-RESISTING STEEL, MUSHROOM-HEADED, SLOTTED-DRIVE, BOLTS, STRENGTH CLASS 880 MPA |
| BS A 401-420:2015 | Specification for screws, pan and 100° countersunk head, hexalobular drive recess (unified threads below ¼ inch) in various materials |
| 12/30264056 DC : DRAFT JULY 2012 | BS 4A 102 A2 - SPECIFICATION FOR STEEL BOLTS (UNIFIED HEXAGONS AND UNIFIED THREADS) FOR AIRCRAFT |
| 09/30199785 DC : 0 | BS 6S 100 - PROCEDURE FOR INSPECTION, TESTING AND ACCEPTANCE OF WROUGHT STEELS (OTHER THAN PLATE, SHEET, STRIP AND TUBE) |
| BS A 211:1961 | Specification for 100° countersunk head steel bolts (Unified threads and cruciform recesses) for aircraft |
| BS 3A 170:1962 | Specification for aluminium alloy mushroom head bolts (Unified threads) for aircraft |
| BS 240:1986 | Method for Brinell hardness test and for verification of Brinell hardness testing machines |
| BS 4S100(1975) : 1975 | PROCEDURE FOR INSPECTION AND TESTING OF WROUGHT STEELS (OTHER THAN SHEET, STRIP AND TUBES) |
| BS 4084:1996 | UNJ threads, with controlled root radius, for aerospace. Inch series |
| DEFSTAN 03-19/2(1994) : 1994 | ELECTRO-DEPOSITION OF CADMIUM |
| BS M 39:1972 | Method for penetrant inspection of aerospace materials and components |
| BS A 346:2000 | UNJ threads. General requirements and limit dimensions |
| DEFSTAN 03-19/3(2005) : 2005 | ELECTRO-DEPOSITION OF CADMIUM |
| BS A 231:1982 | Specification for runout and lead threads for rolled threads |
| DEFSTAN 03-24/5(2008) : 2008 | CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| BS 1134:1961 | Centre-line-average height method for the assessment of surface texture |
| DEFSTAN 03-24/3(1997) : 1997 AMD 1 1999 | CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| BS 5750-2:1987 | Quality systems Specification for production and installation |
| BS 93:1951 | Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A. |
| DEFSTAN 03-24/2(1988) : 1988 | CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| DEFSTAN 03-24/1(1984) : 1984 | CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| BS 6072:1981 | Method for magnetic particle flaw detection |
| BS EN ISO 3887:2003 | Steels. Determination of depth of decarburization |
| BS 427:1990 | Method for Vickers hardness test and for verification of Vickers hardness testing machines |
| BS 4A 4:1966 | Test pieces and test methods for metallic materials for aircraft. Metric units |
| BS 6001(1972) : AMD 5054 | SAMPLING PROCEDURES FOR INSPECTION BY ATTRIBUTES - SPECIFICATION FOR SAMPLING PLANS INDEXED BY ACCEPTABLE QUALITY LEVEL (AQL) FOR LOT - BY - LOT INSPECTION |
| BS 84:2007 | Parallel screw threads of Whitworth form. Requirements |
| ISO 3161:1999 | Aerospace — UNJ threads — General requirements and limit dimensions |
| DEFSTAN 03-24/4(2003) : 2003 | CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
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