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Round head square neck bolts with hex nut DIN 603/555 steel 4.8

Round head square neck bolts with hex nut DIN 603/555 steel 4.8

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  • DIN 603+555

  • UNI 5732

  • ISO 8677+4034

Finishing Raw
Code TT56D
Class 4.8
Material Steel
UNI 5732
DIN 603+555
ISO 8677+4034
Thread Coarse
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Description Life Cycle

The three norms can't be regarded as identical. In practical the small differences can be used in an indifferent way for most of the cases.

The diameter of the non threaded shank may correspond to the average of the rolling diameter.

Tolerances Based On ISO Norm 4759

Mechanical Characteristic Based On ISO norm ISO 898/1

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