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Hex head thread cutting screws type A, with metric thread

BN 1221

DIN 7513 A

~ČSN 021226-9



Headform
Headform Hexagon
Drive
Drive Hexagon
Thread
Thread fully threaded
Material
Material Steel
Material execution
Material execution case-hardened
Surface
Surface zinc plated blue
Hardness
Hardness 450 HV

All features


Standard

DIN 7513 A ~ČSN 021226-9

Features

Headform
Headform Hexagon
Drive
Drive Hexagon
Thread
Thread fully threaded
Material
Material Steel
Material execution
Material execution case-hardened
Surface
Surface zinc plated blue
Hardness
Hardness 450 HV

Assembly notice

1. Drill or die-cast the pilot hole
2. The screw cuts its own internal thread in the pilot hole
3. The self cutting screw is tightened. The pilot hole depth must be aligned (chips)
4. After the self-tapping screw is removed, the internal thread is clearly visible

Illustration assembly


Warnings

ISO 4042
Quenched and tempered fasteners ≥ 360 HV and tempered case-hardened fasteners with electroplated coatings: Susceptible to hydrogen embrittlement!
Further notice to residual risks can be found on our web page: Notes on use