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Screws for Plastic -
Washer head with PZ-drive

STP21A
Washer head with PZ-drive

identical to WN1411 / KN1031
similar to WN1441
            Washer head with PZ-drive
      , WN1411, STP21A
Your Contact Person
Christiane Hoffmann
Languages: Deutsch, English
Range of Production Dimensions

Range of Production top

nominal-Ø (mm) 2.00 2.20 2.50 3.00 3.50 4.00 5.00 6.00
  • in Stock
  • available within 2 weeks
  • ≥ 4 weeks delivery time
Length (mm)
4.0 ± 0.375
E S
4.5 ± 0.375
E S
E S
5.0 ± 0.375
E S
E S
E S
6.0 ± 0.375
E S
E S
E S
E S
7.0 ± 0.450
E S
E S
B E S
E S
E S
8.0 ± 0.450
E S
E S
E S
C E S
E S
B E S
10.0 ± 0.450
E S
E S
E S
C E S
E S
B E S
E S
12.0 ± 0.550
E S
E S
E
E S
E S
B E S
E S
E S
14.0 ± 0.550
E S
E S
E
E S
E S
B E S
E S
E S
16.0 ± 0.550
E S
E S
E S
E S
E S
B C E S
E S
E S
18.0 ± 0.550
E S
E S
E S
E S
E S
B E S
C E S
E S
20.0 ± 0.650
E S
E S
E S
E S
E S
B E S
E S
E S
22.0 ± 0.650
E S
E S
E S
E S
E S
B E S
E S
E S
25.0 ± 0.650
E S
E S
E S
E S
B E S
B E S
E S
30.0 ± 0.650
E S
E S
B E S
E S
E S
35.0 ± 0.800
E S
E S
B E S
E S
C E S
40.0 ± 0.800
E S
E S
E S
E S
C E S
45.0 ± 0.800
E S
E S
E S
50.0 ± 0.800
E S
B E S
E S
55.0 ± 0.950
E S
E S
60.0 ± 0.950
E S
E S
65.0 ± 0.950
E S
70.0 ± 0.950
E S
Hint
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Dimensions top

STP21A
d1 2.00 +0.14 2.20 +0.14 2.50 +0.14 3.00 +0.14 3.50 +0.18 4.00 +0.18 5.00 +0.18 6.00 +0.18
d2 1.15 1.25 1.40 1.66 1.91 2.17 2.68 3.19
p 0.89 0.98 1.12 1.34 1.57 1.79 2.24 2.69
D 4.00 -0.30 4.40 -0.30 5.00 -0.30 6.00 -0.30 7.00 -0.36 8.00 -0.36 10.00 -0.36 12.00 -0.43
K 1.400 ±0.125 1.600 ±0.125 1.800 ±0.125 2.100 ±0.125 2.400 ±0.125 2.500 ±0.125 3.200 ±0.150 4.000 ±0.150
S 0.5 0.5 0.6 0.7 0.8 0.9 1.1 1.3
X max. 1.00 1.10 1.30 1.50 1.80 2.00 2.50 3.00
R max. 0.25 0.25 0.30 0.35 0.35 0.40 0.45 0.60
Z-cross recess 1 1 1 1 2 2 2 3
t min. 0.73 0.86 1.01 1.26 1.08 1.40 2.01 2.27
t max. 0.98 1.11 1.26 1.51 1.54 1.86 2.47 2.73