DEF – STAN 02-862

Alias

SM1-M
SM2-M
SM1-U
SM1-U
DEF – STAN 02-862

Chemistry

Base Elements C(Carbon), Fe(Iron)

Element	Min	Max
P (Phosphorus)		o.04%
S (Sulphur)		0.04%

Mechanical Properties

Bolts, Screws, Studs and Stud-bolts

Mechanical Property	Min	Max
Yield Strength	680 MPa
Tensile Strength	850 MPa	1000 MPa
Elongation 13	5.63√S0%

Nuts

Mechanical Property	Min	Max
Yield Strength	525 MPa
Tensile Strength	700 MPa	850 MPa
Elongation	17 5.63√S0%

Uses

Bolting
First level fasteners;
This area of the Defence Standard specifies the requirements for the manufacture, testing and quality assurance documentation for ferrous (carbon/low alloy steel and stainless steels) and non-ferrous metric and unified fasteners for First Level Quality assured applications.

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