Carbon Key Steel – Square

 Finish: Bright Drawn

USAKEY – Carbon Key Steel – Colour: Red/Yellow
Bright: BS 46: Part 1: 1958, BS 4235: Part 1: 1972

Characteristics:

USAKEY is supplied in the form of Bright Drawn Steel Bars to dimensions and tolerances stipulated in BS 46: Part 1: 1958 ‘Keys and Keyways’ for imperial sizes and BS 4235: Part 1: 1972 ‘Parallel and Taper Keys’ for metric sizes. All imperial bars are supplied to the chemical analysis 0.45% Carbon maximum, 0.60/1.00% Manganese, whilst metric bars are supplied to 0.42/0.50% Carbon, 0.50/0.80% Manganese.

Form of Supply:

Bright bars: As drawn with a tensile strength 540-700 N/mm²

Tolerances:

Imperial Squares :
Up to and incl. 7/8    +.002”
Over 7/8 Up to and incl. 1.1/4    +.003”
Over 1.1/4”    +.004”

Metric Squares :
4mm Up to and incl. 6mm    -.030mm
Over 6mm Up to and incl. 12mm    -.036mm
16mm    -.043mm

Stocked sizes - Squares - Inches

Stocked sizes - Squares - mm.