ISO 4029, steel 45H, galvanised, blue passivated (A2K)
Thread type x nominal diameter (d1) : M5
Length (l1) : 5 mm
Ring cutter diameter (d2) : 2.5 mm
Standards : ISO 4029
Material : Steel
Hardness category : 45H
Surface : Zinc plated
RoHS-compliant : Yes
Head type : Without head
Drive type : Hexagon socket
Internal drive (s1) : IH2.5
Thread type : Metric thread
Pitch : 0.8 mm
Thread format : Standard metric thread
Thread design : Full thread
Shape of tip : Cup point
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.
Improper application is likely if set screws are welded, tightened and secured with nuts or subjected to bending. Any application of tensile stress is considered improper use and can result in malfunction.
A2/A4 stainless steel set screws are not specially hardened and may be used for tensile loads.
Hardness class 45H corresponds to a hardness of 450 HV.
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.
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