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Locking disc spring washer, shape Z A4 stainless steel, plain

A4 stainless steel, type Z
WSH-SER-A4-Z-D12,4

Art.-no. 0404012
EAN 4024835256261

Price for selected packaging unit
Locking disc spring washer, shape Z A4 stainless steel, plain

Art.-no. 0404012

Price for selected packaging unit
Quantity
PU
x 100 pcs

Exclusively for trade customers

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  • Type Z: for cheese head and hexagon socket screws

  • From a technical point of view and due to the installation space, the spring properties of this type are significantly lower

  • Protection type: Screw retainer

  • A4 stainless steel material number 1.4401

  • Friction locking thanks to spring force

  • Mechanical interlock thanks to specific surface stamping

  • Protects the counter surface from damage (washer does not turn during installation)

  • Minimal tightening torque distribution
Product information

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Application area

Machine and system construction, drive technology, conveyor technology, commercial vehicles, construction machines, vehicle construction, agricultural technology, the food industry etc.

Suitable for screw thread

M12

Internal diameter (d1)

12.4 mm

Outer diameter (d2)

18.3 mm

Height (h1)

2.4 mm

Thickness (s1)

1.8 mm

Material

Stainless steel A4

Surface

Plain

RoHS-compliant

Yes

Form

Z

Suitable for

Cylinder head and hexagon head bolts with normal head contact

Locking device operating principle

Serrated lock washer

Locking function

Embedding locking device

Comparison of locking disc spring washers and lock washers

Locking disc spring washer Lock washer with no DIN standard
+ Twice as secure: spring-secured friction fit and positive locking
+ Minimal tightening torque distribution
+ Application range up to approx. 350°C
+ Reusable
+ Protection of the counter surface; no turning
Without a DIN standard, lock washers become a safety risk!
- Very high tightening torque distribution
- Only suitable for locking screws 5.8
- In the worst case scenario, lock washers can wear through surfaces and thereby promote a drop in the preload force.
- No protection against unscrewing
- Lock washers are not reusable
- Lock washers tend to expand (risk of breakage)
- They turn during tightening and loosening -> This damages the surface/counter surface

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

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Technical information