Products


Product Categories

Washers
Spring and knurled washers


RZB MS
Knurled washers for pre-assembled srews

Knurled washers for pre-assembled screws RZB MS can provide an excellent screw clumping, thanks to their   particular conical shape with milling on both bearing surfaces.
The washer must be inserted into the screw before the thread rolling process in order to avoid any possible loss of the washer itself and allow its rotation when screwing.

Knurled washers type RZB MS can be produced and supplied only upon customer's request.

Download technical data sheet
Scheda prodotto - RZB MS
SIZE WASHER DIMENSIONS SUPPLEMENTARY DATA WEIGHT
screw
mm
d1
H14
tol
d2
h14
tol
s
h max
Load test
Torsion torque
(Nm)
Kg/1000
4 3,60 0,120 0 7,00 0 -0,360 0,80 1,10 3,30 0,143
5 4,55 0,150 0 9,00 0 -0,360 0,95 1,30 6,70 0,317
6 5,40 0,150 0 10,00 0 -0,360 1,00 1,40 11,20 0,367
8 7,40 0,360 0 13,00 0 -0,430 1,20 1,65 27,00 0,694
10 9,25 0,360 0 16,00 0 -0,430 1,50 1,95 53,00 1,482
Dimensions in mm 
View technical data

Materials used

discover

Spring steel EN 10132 - 1/4 (DIN 17222)
Ø from 4 to 10 mm: strip C60S (C60)

Hardness

Ø from 4 to 10 mm: HV 430 ÷ 526, HRC 44 ÷ 50

Standard surface finish

discover

Ø from 4 to 10 mm: plain (without any surface treatment)

Packaging

discover

Additional information

Surface Finishes on request
Upon request and for quantities / prices to be established, knurled washers RZB MS can be supplied with the following surface finishes:
Phosphating
Mechanical Zinc Plating