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Screws for Plastic -
Flathead with PH-drive

STP33A
Flathead with PH-drive

identical to WN1413 / KN1033
similar to WN1443
Flathead with PH-drive, WN1413, STP33A
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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)
4.5
E S
E S
5.0
E S
E S
6.0
B E S
E S
7.0
E S
E S
8.0
E S
C E S
E S
E S
10.0
E S
E S
E S
B E S
E S
B E S
12.0
E S
B E S
E S
C E S
E S
B E S
E S
E S
14.0
E S
E S
E S
E S
E S
B E S
E S
E S
16.0
E S
E S
E S
E S
E S
B E S
E S
E S
18.0
E S
E S
E S
E S
E S
B E S
E S
E S
20.0
E S
E S
E S
E S
E S
B E S
B E S
E S
22.0
E S
E S
E S
E S
E S
B E S
E S
E S
25.0
E S
E S
E S
E S
B E S
E S
E S
30.0
E S
E S
E S
B E S
E S
B E S
35.0
E S
E S
B E S
E S
E S
40.0
E S
E S
E S
E S
C E S
45.0
E S
E S
E S
50.0
E S
E S
E S
55.0
E S
E S
60.0
E S
E S
65.0
E S
70.0
E S
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Dimensions top

STP33A
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 3.80 -0.30 3.80 -0.30 4.70 -0.30 5.50 -0.30 7.30 -0.36 8.40 -0.36 9.30 -0.36 11.30 -0.43
C 0.35 0.35 0.55 0.55 0.55 0.70 0.75 0.85
X 1.00 1.10 1.30 1.50 1.80 2.00 2.50 3.00
R 0.25 0.25 0.30 0.35 0.35 0.40 0.45 0.60
Drive H1 H1 H1 H1 H2 H2 H2 H2
t 0.95 - 1.25 0.95 - 1.25 0.97 - 1.43 1.10 - 1.56 1.33 - 1.96 1.59 - 2.22 2.04 - 2.67 2.59 - 3.22