Round head screw with square neck
DIN 603 steel 8.8 zinc plated thick-layer pass.
SCR-MHD-DIN603-8.8-(VZD)-M8X40
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The flat square neck fixes the round head screw e.g. in a slot and allows tightening from the nut side without counter-tensioning.
Connection elements with zinc-plated chromium(VI)-free zinc thick-film passivation (VZD) offer a future-proof alternative to surfaces containing chromium(VI). The coating consists of a zinc layer with passivation on a chromium (III) basis.
Overview of advantages:
- Chrome(VI)-free alternative to A2C or A3C
- Thermal capacity up to 120°C
- Even coating distribution
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M8 |
Length (l1) | 40 mm |
Material | Steel |
Property class | 8.8 |
Surface | Zinc plated thick-layer passivation |
Head diameter (dk) | 20.650 mm |
Head height (k1) | 4.88 mm |
Square width (V) | 8.58 mm |
Square height (f) | 5.6 mm |
Standards | DIN 603 |
RoHS-compliant | Yes |
Head details | With square neck |
Thread type | Metric thread |
Pitch | 1.25 mm |
Shank diameter | 8 mm |
Thread length (metric thread) (b) | 22 mm |
Product class | C |
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