Steel Delta Protekt narrow Form
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Lock washer in line with DIN 25201 to prevent loosening in laterally loaded connections, vibrating screw connections and screw connections subject to oscillations.
600 h base metal corrosion in line with DIN EN ISO 9227-NSS (DIN 50021-SS) — in comparison: 96 h yellow galvanised (A2C)
The wedge surface slope between the two lock washers ensures highly secure locking. The screw connection is locked by pre-tension instead of by friction.
For the recommended tightening torques, please see the technical information in the DIN/ISO catalogue.
Catalogue page as PDF 1
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Vehicle manufacturing, mechanical engineering, manufacturers of pneumatic and electric tools, mining, agricultural machine manufacturing, manufacturers of mixing systems, transport and conveying systems.
Internal diameter (d1)
Suitable for screw thread
Suitable for thread (imperial)
Outer diameter (d2)
Vickers hardness, HV
Flake zinc silver
Corrosion protection period
Locking against self-loosening by mechanical interlocking