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Hexagon socket set screw with ring cutter UNBRAKO®
ISO 4029, steel 45H, plain, UNBRAKO® type
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Advantages of UNBRAKO® set screws:
- E-Code: Alphanumeric head stamping for traceability
- Rolled thread with narrow tolerances
- Regular inspection for thread faults in manufacture
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.
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