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BS 2A 296:1995

Current
Current

The latest, up-to-date edition.

Bolts and screws, metric. Tolerances of form and position
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-15-1995

Publisher

British Standards Institution

Specifies the tolerances of form and position applicable to all types of metric bolts and screws in the nominal thread diameter range 3 mm to 24 mm used in aerospace construction. Also gives detailed tables.

This International Standard specifies the tolerances of form and position applicable to all types of metric bolts and screws in the nominal thread diameter range 3 mm to 24 mm used in aerospace construction.

It is intended for the drawing up of aerospace product standards.

Committee
ACE/12
DevelopmentNote
Also numbered as ISO 7913 Supersedes 93/705314 DC and BS A296(1986) (07/2005) Reviewed and confirmed by BSI, October 2010. (09/2010)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

BS A 312:1997 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 313:1997 Areospace. 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 EN 2650:1997 Screws, pan head, slotted, threaded to head, in corrosion resisting steel, passivated. Classification: 600 MPa (at ambient temperature) /425°C
BS EN 3037:1997 Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, MoS<sub>2</sub> lubricated. Classification: 1100 MPa (at ambient temperature)/315°C
BS EN 2652:1997 Screws, 100° countersunk normal head, slotted, threaded to head, in alloy steel, cadmium plated. Classification: 900 MPa (at ambient temperature)/235°C
BS A 311:1997 Aerospace. Screws, 100° reduced countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 MPa. Dimensions
BS EN 2886:1996 Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification. 900 MPa (at ambient temperature)/235°C
BS EN 2651:1997 Screws, pan head, slotted, threaded to head, in brass, tin plated. Classification: 380 MPa (at ambient temperature)/80°C
BS EN 2870:1996 Bolts, normal bihexagonal head, close tolerance normal shank, short thread, in titanium alloy, anodized, MoS<sub>2</sub> lubricated. Classification: 1100 MPa (at ambient temperature) /315°C
BS EN 3381:1997 Screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium, anodized, MoS<sub>2</sub> lubricated. Classification: 1100 MPa (at ambient temperature) /315°C
BS EN 3304:1997 Screws, 100° countersunk reduced head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, MoS<sub>2</sub> lubricated. Classification: 1100 MPa (at ambient temperature)/315°C
BS EN 3759:1997 Screws, pan head, offset cruciform recess, threaded to head, in heat and corrosion resisting steel, passivated. Classification: 1100 MPa (at ambient temperature)/425°C
BS EN 3740:1997 Bolts, shouldered, thin hexagonal head, close tolerance shank, short thread, in titanium alloy, anodized, MoS<sub>2</sub> lubricated. Classification: 1100 MPa (at ambient temperature)/315°C
BS EN 2885:1996 Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification: 900 MPa (at ambient temperature)/235°C
BS EN 2897:1996 Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification: 1100 MPa (at ambient temperature) /235°C
BS EN 3308:1996 Screws, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS<sub>2</sub> lubricated. Classification. 1100 MPa (at ambient temperature) /315°C
BS EN 2884:1996 Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in titanium alloy, anodized MoS<sub>2</sub> lubricated. Classification: 1100 MPa (at ambient temperature)/315°C
BS EN 2654:1997 Screws, 100° countersunk normal head, slotted, threaded to head, in brass, tin plated. Classification: 380 MPa (at ambient temperature)/80°C
BS EN 3038:1997 Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated. Classification: 1100 MPa (at ambient temperature)/425°C
BS EN 3035:1997 Screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification: 1100 MPa (at ambient temperature)/235°C
BS EN 3306:1996 Screws, 100° countersunk normal head, offset cruciform recess, threaded to head, in titanium alloy, anodized, MoS<sub>2</sub> lubricated. Classification. 1100 MPa (at ambient temperature)/315°C
BS EN 3760:1997 Screws, 100° countersunk normal head, offset cruciform recess, threaded to head, in heat and corrosion resisting steel, passivated. Classification: 1100 MPa (at ambient temperature)/425°C
BS EN 2653:1997 Screws, 100° countersunk normal head, slotted, threaded to head, in corrosion resisting steel, passivated. Classification: 600 MPa (at ambient temperature) /425°C
BS EN 3305:1997 Screws, 100° countersunk reduced head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification: 1100 MPa (at ambient temperature)/235°C
BS EN 3543:1997 Screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated. Classification: 1100 MPa (at ambient temperature)/425°C
BS EN 2874:1996 Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated. Classification: 1550 MPa (at ambient temperature) /315°C

ISO 2692:2014 Geometrical product specifications (GPS) Geometrical tolerancing Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)
ISO 1101:2017 Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form, orientation, location and run-out

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