BN 11904 - Octagon (8 Lobe) pan head self-drilling screws ~type N
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1) Shaped drilling point
Headform Pan Head
Drive 8 lobe
Thread fully threaded
Material execution case-hardened
Surface zinc plated blue
Hardness 560 HV
Standard ~DIN 7504 N (Standard withdrawn)
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 in the introduction section.
BN 1878 - DIN 7504 N (Standard withdrawn)
ecosyn®-drill - Phillips pan head self-drilling screws type N, form H - Steel - case-hardened - zinc plated blue
BN 1880 - DIN 7504 K (Standard withdrawn)
ecosyn®-drill - Hex head self-drilling screws type K - Steel - case-hardened - zinc plated blue
BN 20581 - ~DIN 7504 N (Standard withdrawn)
ecosyn®-MRX - Octagon (8 Lobe) socket pan head self-drilling screws ~type N - Stainless steel