Fasteners — Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes

This document specifies the mechanical and physical properties of nuts made of non-alloy steel or alloy steel, when tested at the ambient temperature range of 10 °C to 35 °C.

This document applies to nuts:

— with ISO metric thread (see ISO 68-1),

— with diameter/pitch combinations according to ISO 261 and ISO 262,

— with coarse pitch thread M5 to M39, and fine pitch thread M8×1 to M39×3,

— with thread tolerances according to ISO 965-1, ISO 965-2 or ISO 965-5,

— with specified property classes 04, 05, 5, 6, 8, 10 and 12 including proof load,

— of three different nut styles (see 5.1): regular nuts (style 1), high nuts (style 2) and thin nuts (style 0),

— with a minimum outside diameter or width across flats s ≥ 1,45D,

— able to mate with bolts, screws and studs with property classes in accordance with ISO 898-1 (see Annex B), and

— intended to be used in applications ranging from –50 °C to +150 °C, or up to +300 °C.

WARNING — Nuts conforming to the requirements of this document are tested at the ambient temperature range of 10 °C to 35 °C and are used in applications ranging from –50 °C to +150 °C; however, these nuts are also used outside this range and up to +300 °C for