Scope

This part of ISO 898 specifies mechanical and physical properties of nuts with coarse thread and fine pitch thread made of carbon steel and alloy steel when tested at an ambient temperature range of 10°C to 35 °C.
Nuts conforming to the requirements of this part of ISO 898 are evaluated at that ambient temperature range.
It is possible that they do not retain the specified mechanical and physical properties at elevated and/or lower temperatures.
NOTE 1 Nuts conforming to the requirements of this part of ISO 898 have been used in applications ranging from –50 °C to 150 °C. It is the responsibility of users to consult an experienced fastener materials expert for temperatures outside the range of –50 °C to 150 °C and up to a maximum temperature of 300°C to determine appropriate choices for a given application.
NOTE 2 Information for the selection and application of steels for use at lower and elevated temperatures is given for instance in EN 10269, ASTM F2281 and in ASTM A320/A320M.
This part of ISO 898 is applicable to nuts:
a) made of carbon steel or alloy steel;
b) with coarse thread M5 = D = M39, and fine pitch thread M8×1 = D = M39×3;
c) with triangular ISO metric thread according to ISO 68-1;
d) with diameter/pitch combinations according to ISO 261 and ISO 262;
e) with specified property classes, including proof load;
f) with different nut styles: thin nuts, regular nuts and high nuts;
g) with minimum height m = 0,45D;
h) with a minimum outside diameter or width across flats s = 1,45D (see Annex A);
i) able to mate with bolts, screws and studs with property classes according to ISO 898-1.
For hot dip galvanized nuts, see ISO 10684.

Scope

This Standard sets out requirements for the design, construction and verification of electrical installations, including the selection and installation of electrical equipment forming part of such electrical installations.
These requirements are intended to protect persons, livestock, and property from electric shock, fire and physical injury hazards that may arise from an electrical installation that is used with reasonable care and with due regard to the intended purpose of the electrical installation.
In addition, guidance is provided so that the electrical installation will function correctly for the purpose intended.

Scope

This Standard specifies requirements for hexagon nuts and bolts with full-sized shanks and screws with unified screw threads (UNC and UNF) in diameters of 1/4 in to 1 1/2 in inclusive in strength grades 5 and 8.
The Standard is intended primarily to cover steel bolts, screws and nuts used within the temperature range of -50¦C to 300¦C, and does not make provision for products requiring special properties such as weldability or corrosion resistance.
The dimensional and marking requirements (except strength grade marking) of this Standard may also be applied to hexagon nonferrous and stainless steel bolts, screws and nuts.

Scope

This Standard specifies the requirements for hexagon bolts and screws with British Standard Whitworth (BSW) thread in diameters from 1/4in to 2 in inclusive and nuts with BSW thread in diameters from 1/4in to 6 in inclusive.

The Standard is intended primarily to cover steel bolts, screws and nuts used within the temperature range of -50¦C to 300¦C, and does not make provision for products requiring special properties such as weldability or corrosion-resistance.

The dimensional requirements of this Standard may also be applied to hexagon nonferrous and stainless steel bolts, screws and nuts.

NOTES:
1 The range of sizes included in this Standard is considered adequate for most of the applications for which this series is likely to be employed.
2 To provide for the time when imperial measuring equipment is no longer available, dimensional and mechanical property requirements in metric units are given in Appendix A.
3 If the purchaser requires other pitch series, i.e. BSF or other thread classes, these should be the subject of agreement between the purchaser and the manufacturer.