Hexagon nut with clamping piece (non-metal insert) ISO 7040, zinc plated 8 steel with thick-layer passivation (ZSML)
ISO 7040 steel 8 zn ptd. thick-layer pass. sealing
NUT-HEX-SLOK-ISO7040-8-(ZSML)-M30
Art.-no. 453400230
EAN 4057709890490
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Connection elements with zinc-plated chromium(VI)-free thick-film passivation (ZSML) offer a future-proof alternative compared to surfaces containing chromium(VI). The coating consists of a zinc layer with passivation on a (chrome III) basis and sealing coat (top coat with integrated lubricating particles).
Overview of advantages:
- Higher quality replacement for common zinc-plated coatings such as A2C or A3C
 - Adjusted friction coefficient range from 0.09 μ – 0.14 μ due to top coat with integrated lubricating particles
 - Thermal capacity up to 120°C
 - Even coating distribution
 - Functional and decorative
 
ISO 7040 replaces DIN 982 | There is some limited similarity | Threads M7, M18, M22 removed | Threads M3, M4, M30 and M36 added | Nut height changed | Width across flats for threads M10, M12 and M14 changed to 16 mm, 18 mm and 21 mm | Fine thread included in ISO 10512 | Strength class 12 removed | ISO 7040 valid for strength classes 5, 8, 10.
Datasheets(X)
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Thread type x nominal diameter (D)  | M30  | 
Height (h1)  | 30.10 mm  | 
External drive (s1)  | WS46  | 
Standards  | ISO 7040  | 
Material  | Steel  | 
Property class  | 8  | 
Surface  | Zinc plated thick-layer passivation  | 
RoHS-compliant  | Yes  | 
Corrosion protection period  | 264 h  | 
Locking device operating principle  | Clamping part polyamide ring  | 
Locking function  | Locking against loosening by clamping  | 
