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Slotted flat countersunk head tapping screws with cone end type C

BN 990

DIN 7972 C

(Standard withdrawn)

~ISO 1482

~UNI 6952 AB

~ČSN 021236



Headform
Headform Countersunk head
Drive
Drive Slot
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DIN 7972 C (Standard withdrawn) ~ISO 1482 ~UNI 6952 AB ~ČSN 021236

Additional information

Countersunk must be designed according to the corresponding standard!

Features

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

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