Hexagon socket set screw with ring cutter ISO 4029, steel 45H, zinc-nickel, black (ZNBHL)
ISO 4029 steel 45H zinc nickel black
SCR-RGCTR-ISO4029-45H-HS4-(ZNBHL)-M8X20
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Connection elements with a galvanised chrome (VI)-free zinc-nickel coating (ZNBHL black or ZNSHL silver) are suitable for applications with a high risk of corrosion. The coating comprises a zinc-nickel alloy layer and a seal (top coat with integrated lubricating particles).
Overview of advantages:
- Corrosion resistance of up to 720 hrs to base metal corrosion in accordance with DIN EN ISO 9227 NSS
- Adjusted friction coefficient range from 0.09μ - 0.14μ due to top coat with integrated lubricating particles
- thermal capacity up to up to 120°C
- Even coat distribution
- Functional and decorative
Hardness class 45H corresponds to a hardness of 450 HV
Steel set screws are intended for use under compressive stress only (see also DIN EN ISO 898-5). Typical uses include clamping in an adjusting ring or applying pressure to a counterpart. Steel set screws are therefore extremely hard in order to ensure torsional strength in the hexagon socket during tightening/loosening.
Tip:
A2/A4 stainless steel set screws are not specially hardened and may be used for tensile loads.
ISO 4029 replaces DIN 916 | There is some similarity | Nominal diameters for M1.4, M1.8, M14, M18, M22 are removed | Hardness classes for stainless steels introduced.
 | |
Thread type x nominal diameter (d1) | M8 |
Length (l1) | 20 mm |
Ring cutter diameter (d2) | 5 mm |
Internal drive (s1) | HS4 |
Standards | ISO 4029 |
Material | Steel |
Surface | Zinc nickel black |
Hardness category | 45H |
Drive type | Hexagon socket |
Shape of tip | Cup point |
RoHS-compliant | Yes |
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