15/30281806 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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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
Hardcopy , PDF
31-10-2015
English
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
1 Scope
2 Normative references
3 General
4 Quality assurance procedure
5 Material and manufacture
6 Protective finish
7 Freedom from defects
8 Dimensions
9 Head of screws
10 Hexalobular drive recess
11 Unified thread identifier
12 Length of screws
13 Screw threads
14 Ends of screws
15 Length of thread
16 Designation
17 Identification and marking
Annex A (informative) - Screw equivalency quick
reference guide
Annex B (informative) - Conversion tables
Annex C (informative) - Measuring inspection criteria
for countersunk heads
Annex D (informative) - Derivation of design of the
countersunk head
Bibliography
BS A 401 to A 420.
| Committee |
ACE/12
|
| DocumentType |
Draft
|
| Pages |
31
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS 7S 80:2002 | High chromium-nickel corrosion resisting steel forging stock, bars, forgings and parts (880 to 1080 MPa: limiting ruling section 100 mm) |
| BS A 273:1978 | Specification for gauging practice for 100° countersunk head fasteners for flushness control |
| TR 4070 : 1 | AEROSPACE SERIES - MOLYBDENUM DISULPHIDE COATINGS - LIST OF COMMERCIAL PRODUCTS |
| BS EN 3911:2010 | Aerospace series. Six lobe recess. Geometrical definition |
| NAS1800:2004 | RECESS, SIX LOBE DRIVE, INTERNAL, DIMENSIONS FOR RECESS AND GAGES |
| SAE AMS2417J | Plating, Zinc-Nickel Alloy |
| BS S 154:1976 | Specification. 2½% nickel-chromium-molybdenum steel billets, bars, forgings and parts (880-1080 MPa: limiting ruling section 150 mm) |
| BS EN ISO 898-1:2013 | Mechanical properties of fasteners made of carbon steel and alloy steel Bolts, screws and studs with specified property classes. Coarse thread and fine pitch thread |
| SAE AMS03_25 | Sulfuric Acid Anodizing of Aluminum and Aluminum Alloys |
| BS S148(1969) : 1969 | SPECIFICATION FOR LOW NICKEL-CHROMIUM STEEL (BAR FOR THE MANUFACTURE OF FORGED BOLTS ONLY) |
| BS 2S 142:1977 | Specification for 1% chromium-molybdenum steel billets, bars, forgings and parts (900-1100 MPa: limiting ruling section 40 mm) |
| BS S130(1964) : LATEST | |
| BS EN 4826:2014 | Aerospace series. Zinc-Nickel (12 %-16 % Ni) plating of steels with specified tensile strength ≤ 1 450 MPa, copper alloys, nickel alloys and aluminium alloys for parts and fasteners |
| BS L 102:1971 | Specification for bars and extruded sections of aluminium-copper-magnesium-silicon-manganese alloy (solution treated and aged at room temperature) (not exceeding 200 mm diameter or minor sectional dimension) (Cu 4.4, Mg 0.5, Si 0.7, Mn 0.8) |
| TR 3775 : 4 | AEROSPACE SERIES - BOLTS AND PINS - MATERIALS |
| BS 2A204,2A206,2A208,A217-A225(1963) : 1963 PD 6167 | SPECIFICATIONS FOR MACHINE SCREWS AND NUTS (UNIFIED THREADS) BELOW 1/4 INCH FOR AERONAUTICAL PURPOSES |
| BS EN 2133:2010 | Aerospace series. Cadmium plating of steels with specified tensile strength ≤ 1450 MPa, copper, copper alloys and nickel alloys |
| SAE AMS03_19 | Electro-Deposition of Cadmium |
| BS EN 2516:1997 | Passivation of corrosion resisting steels and decontamination of nickel base alloys |
| BS EN 2398:2008 | Aerospace series. Heat resisting steel FE-PA2601(X6NiCrTiMoV26-15). Rm ≥ 900 MPa. Bars for machined bolts. D ≤ 25 mm |
| BS EN 12166:2011 | Copper and copper alloys. Wire for general purposes |
| BS EN 755-2:2016 | Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles Mechanical properties |
| BS 4A 100:2003 | Specification for general requirements for bolts and free running nuts of tensile strength not exceeding 1249 MPa |
| BS L 168:1978 | Specification for bars and extruded sections of aluminium-copper-magnesium-silicon-manganese alloy (solution treated and artificially aged) (not exceeding 200 mm diameter or minor sectional dimension) (Cu 4.4, Mg 0.5, Si 0.7, Mn 0.8) |
| BS EN ISO 10664:2014 | Hexalobular internal driving feature for bolts and screws |
| BS S 158:1977 | Specification for 1% chromium-molybdenum steel bars for the manufacture of forged bolts and forged nuts |
| BS EN 2284:1991 | Specification for sulfuric acid anodizing of aluminium and wrought aluminium alloys |
| BS 2S 147:1976 | Specification for 0.5% nickel-chromium-molybdenum steel bars for the manufacture of forged bolts and forged nuts |
| BS EN 12163:2011 | Copper and copper alloys. Rod for general purposes |
| BS EN 12164:2011 | Copper and copper alloys. Rod for free machining purposes |
| NAS9800:2014 | HEAD PROTRUSION GAGING, 100 DEGREES FLUSH HEAD FASTENERS, GAGE BLOCK, GAGE DIAMETERS AND STYLUS |
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