Hexagon socket set screw with truncated cone ISO 4026 steel 45H, zinc-nickel-plated black (ZNBHL)
ISO 4026 steel 45H zinc nickel black
SCR-FLPT-ISO4026-45H-HS3-(ZNBHL)-M6X25
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Fasteners with a zinc-plated chromium(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 sealing coat (top coat with integrated lubricating particles).
Overview of advantages:
- Resistance of up to 720 hours against base metal corrosion in accordance with DIN EN ISO 9227 NSS
- Adjusted friction coefficient range from 0.09-0.14 μ due to top coat with integrated lubricating particles; thermal capacity up to 120°C
- Even coating 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 4026 replaces DIN 913 | There is some similarity | Nominal diameters for M1.4, M1.8, M14, M18, M22 are removed | Hardness classes for stainless steels introduced.
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M6 |
Length (l1) | 25 mm |
Diameter of flat point (d2) | 4 mm |
Internal drive (s1) | HS3 |
Standards | ISO 4026 |
Material | Steel |
Surface | Zinc nickel black |
Hardness category | 45H |
Drive type | Hexagon socket |
Thread type | Metric thread |
Thread form | Standard metric thread |
Shape of tip | Truncated cone |
RoHS-compliant | Yes |
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