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CAPTOP© Plugs for internal protection

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ProteC CaPtoP® EP 437

Threaded sealing plugs with assembled washer

Download Datasheet (PDF)

CaPtoP® EP 437

Threaded sealing plugs with assembled washer

Download Datasheet (PDF)

YOUR CAPTOP® ADVANTAGE:   Best Price in the Market

Threaded sealing plug design EP 435 complete with washer provides an outstanding seal force useable under complicated working conditions.

Nylon 6 is used for its stability to withstand temperatures of up to 150 °C and pressures up to 2,5 bar (during painting processing and testing).

Five complete threads for optimum use.

The hexagon head allows tightening and removal with either a screwdriver or a spanner or special tool Guaranteed seal.

Std. Color: yellow
Material: Premium, impact resistant Nylon ( PA 6 )

PROTEC CAPTOP EP 437
d1 D L1 L2 SW T R Type Reference No. Bookmark
  DIN EN ISO 228-1 / DIN 3852-2
G   .1/8" 16.8   7.5 11.2 13 1.0 18.0 A EP 437 -   .1/8"
G   .1/4" 19.0   7.5 11.3 13 1.0 20.5 A EP 437 -   .1/4"
G   .3/8" 22.0   7.6 12.5 17 1.0 23.5 A EP 437 -   .3/8"
G   .1/2" 27.0 10.6 14.7 19 1.0 28.5 A EP 437 -   .1/2"
G   .3/4" 32.2 10.5 14.2 24 1.0 33.5 A EP 437 -   .3/4"
G 1." 39.7 13.6 15.8 27 1.0 41.0 B EP 437 - 1."
G 1.1/4" 49.8 13.5 17.8 36 1.0 51.5 B EP 437 - 1.1/4"
G 1.1/2" 55.4 13.5 16.5 41 1.0 56.5 B EP 437 - 1.1/2"
G 2." 68.2 13.5 16.9 55 1.0 73.0 B EP 437 - 2."
  Metric DIN 3852-1 / DIN ISO 6149-1
M 10 x 1 14.0   5.5 11.5 10 1.0 16.5 B EP 437 - M 10 x 1
M 12 x 1.5 17.2   8.2 11.5 13 1.0 19.5 A EP 437 - M 12 x 1.5
M 14 x 1.5 19.1 10.1 11.2 13 1.0 22.7 A EP 437 - M 14 x 1.5
M 16 x 1.5 21.7   7.5 11.6 17 1.0 24.5 A EP 437 - M 16 x 1.5
M 18 x 1.5 23.8   8.6 12.3 17 1.0 26.5 A EP 437 - M 18 x 1.5
M 20 x 1.5 25.8   8.5 15.5 19 1.0 28.7 A EP 437 - M 20 x 1.5
M 22 x 1.5 26.7   8.6 15.5 19 1.0 29.5 A EP 437 - M 22 x 1.5
M 24 x 1.5 31.2 10.6 15.2 24 1.0 32.5 A EP 437 - M 24 x 1.5
M 26 x 1.5 31.8   8.5 15.5 24 1.0 33.6 A EP 437 - M 26 x 1.5
M 27 x 2 32.1 11.5 15.4 24 1.0 33.5 A EP 437 - M 27 x 2
M 33 x 2 39.6 11.5 15.6 27 1.0 41.5 B EP 437 - M 33 x 2
M 42 x 2 49.8 11.5 16.6 36 1.0 51.0 B EP 437 - M 42 x 2
  ISO 11926-1
.7 / 16" - 20 UNF 21.0 10.0 10.2 13 1.0 22.0 A EP 437 -   .7 / 16" - 20 UNF
.1/    2" - 20 UNF 22.8   9.6 11.3 13 1.0 24.0 A EP 437 -   .1/    2" - 20 UNF
.9 / 16" - 18 UNF 24.8   9.5 11.3 13 1.0 26.0 A EP 437 -   .9 / 16" - 18 UNF SF4
.5 /   8" - 18 UNF 24.9 10.5 13.2 17 1.0 26.0 A EP 437 -   .5 /   8" - 18 UNF
.3 /   4" - 16 UNF 25.6   8.9 14.3 17 1.0 27.0 A EP 437 -   .3 /   4" - 16 UNF
.7 /   8" - 14 UNF 33.9 12.5 13.6 19 1.0 35.0 A EP 437 -   .7 /   8" - 14 UNF
1.1 /16" - 12 UN 40.7 12.5 13.4 24 1.0 42.0 A EP 437 - 1.1 / 16" - 12 UN
1.5 /16" - 12 UN 42.1 13.5 16.5 27 1.0 43.0 A EP 437 - 1.5 / 16" - 12 UN
1.5 /  8" - 12 UN 55.6 15.7 16.3 36 1.0 59.0 A EP 437 - 1.5 /   8" - 12 UN
1.5 /  8" - 16 UN 57.6 15.8 16.6 36 1.0 59.0 A EP 437 - 1.5 /   8" - 16 UN
d1 D L1 L2 SW T R Type Reference No.
  DIN EN ISO 228-1 / DIN 3852-2
G   .1/8" 16.8   7.5 11.2 13 1.0 18.0 A EP 437 -   .1/8"
G   .1/4" 19.0   7.5 11.3 13 1.0 20.5 A EP 437 -   .1/4"
G   .3/8" 22.0   7.6 12.5 17 1.0 23.5 A EP 437 -   .3/8"
G   .1/2" 27.0 10.6 14.7 19 1.0 28.5 A EP 437 -   .1/2"
G   .3/4" 32.2 10.5 14.2 24 1.0 33.5 A EP 437 -   .3/4"
G 1." 39.7 13.6 15.8 27 1.0 41.0 B EP 437 - 1."
G 1.1/4" 49.8 13.5 17.8 36 1.0 51.5 B EP 437 - 1.1/4"
G 1.1/2" 55.4 13.5 16.5 41 1.0 56.5 B EP 437 - 1.1/2"
G 2." 68.2 13.5 16.9 55 1.0 73.0 B EP 437 - 2."
  Metric DIN 3852-1 / DIN ISO 6149-1
M 10 x 1 14.0   5.5 11.5 10 1.0 16.5 B EP 437 - M 10 x 1
M 12 x 1.5 17.2   8.2 11.5 13 1.0 19.5 A EP 437 - M 12 x 1.5
M 14 x 1.5 19.1 10.1 11.2 13 1.0 22.7 A EP 437 - M 14 x 1.5
M 16 x 1.5 21.7   7.5 11.6 17 1.0 24.5 A EP 437 - M 16 x 1.5
M 18 x 1.5 23.8   8.6 12.3 17 1.0 26.5 A EP 437 - M 18 x 1.5
M 20 x 1.5 25.8   8.5 15.5 19 1.0 28.7 A EP 437 - M 20 x 1.5
M 22 x 1.5 26.7   8.6 15.5 19 1.0 29.5 A EP 437 - M 22 x 1.5
M 24 x 1.5 31.2 10.6 15.2 24 1.0 32.5 A EP 437 - M 24 x 1.5
M 26 x 1.5 31.8   8.5 15.5 24 1.0 33.6 A EP 437 - M 26 x 1.5
M 27 x 2 32.1 11.5 15.4 24 1.0 33.5 A EP 437 - M 27 x 2
M 33 x 2 39.6 11.5 15.6 27 1.0 41.5 B EP 437 - M 33 x 2
M 42 x 2 49.8 11.5 16.6 36 1.0 51.0 B EP 437 - M 42 x 2
  ISO 11926-1
.7 / 16" - 20 UNF 21.0 10.0 10.2 13 1.0 22.0 A EP 437 -   .7 / 16" - 20 UNF
.1/    2" - 20 UNF 22.8   9.6 11.3 13 1.0 24.0 A EP 437 -   .1/    2" - 20 UNF
.9 / 16" - 18 UNF 24.8   9.5 11.3 13 1.0 26.0 A EP 437 -   .9 / 16" - 18 UNF SF4
.5 /   8" - 18 UNF 24.9 10.5 13.2 17 1.0 26.0 A EP 437 -   .5 /   8" - 18 UNF
.3 /   4" - 16 UNF 25.6   8.9 14.3 17 1.0 27.0 A EP 437 -   .3 /   4" - 16 UNF
.7 /   8" - 14 UNF 33.9 12.5 13.6 19 1.0 35.0 A EP 437 -   .7 /   8" - 14 UNF
1.1 /16" - 12 UN 40.7 12.5 13.4 24 1.0 42.0 A EP 437 - 1.1 / 16" - 12 UN
1.5 /16" - 12 UN 42.1 13.5 16.5 27 1.0 43.0 A EP 437 - 1.5 / 16" - 12 UN
1.5 /  8" - 12 UN 55.6 15.7 16.3 36 1.0 59.0 A EP 437 - 1.5 /   8" - 12 UN
1.5 /  8" - 16 UN 57.6 15.8 16.6 36 1.0 59.0 A EP 437 - 1.5 /   8" - 16 UN
  ISO 11926-1
Thread d1
G .1/8"
Flange D
16.8
Thread Length L1
7.5
Head Lengt L2
11.2
Spannersize SW
13
Washer T
1.0
Washer R
18.0
Type
A
Reference No.   EP 437 - .1/8"
Thread d1
G .1/4"
Flange D
19.0
Thread Length L1
7.5
Head Lengt L2
11.3
Spannersize SW
13
Washer T
1.0
Washer R
20.5
Type
A
Reference No.   EP 437 - .1/4"
Thread d1
G .3/8"
Flange D
22.0
Thread Length L1
7.6
Head Lengt L2
12.5
Spannersize SW
17
Washer T
1.0
Washer R
23.5
Type
A
Reference No.   EP 437 - .3/8"
Thread d1
G .1/2"
Flange D
27.0
Thread Length L1
10.6
Head Lengt L2
14.7
Spannersize SW
19
Washer T
1.0
Washer R
28.5
Type
A
Reference No.   EP 437 - .1/2"
Thread d1
G .3/4"
Flange D
32.2
Thread Length L1
10.5
Head Lengt L2
14.2
Spannersize SW
24
Washer T
1.0
Washer R
33.5
Type
A
Reference No.   EP 437 - .3/4"
Thread d1
G 1."
Flange D
39.7
Thread Length L1
13.6
Head Lengt L2
15.8
Spannersize SW
27
Washer T
1.0
Washer R
41.0
Type
B
Reference No.   EP 437 - 1."
Thread d1
G 1.1/4"
Flange D
49.8
Thread Length L1
13.5
Head Lengt L2
17.8
Spannersize SW
36
Washer T
1.0
Washer R
51.5
Type
B
Reference No.   EP 437 - 1.1/4"
Thread d1
G 1.1/2"
Flange D
55.4
Thread Length L1
13.5
Head Lengt L2
16.5
Spannersize SW
41
Washer T
1.0
Washer R
56.5
Type
B
Reference No.   EP 437 - 1.1/2"
Thread d1
G 2."
Flange D
68.2
Thread Length L1
13.5
Head Lengt L2
16.9
Spannersize SW
55
Washer T
1.0
Washer R
73.0
Type
B
Reference No.   EP 437 - 2."
  ISO 11926-1
Thread d1
M 10 x 1
Flange D
14.0
Thread Length L1
5.5
Head Lengt L2
11.5
Spannersize SW
10
Washer T
1.0
Washer R
16.5
Type
B
Reference No.   EP 437 - M 10 x 1
Thread d1
M 12 x 1.5
Flange D
17.2
Thread Length L1
8.2
Head Lengt L2
11.5
Spannersize SW
13
Washer T
1.0
Washer R
19.5
Type
A
Reference No.   EP 437 - M 12 x 1.5
Thread d1
M 14 x 1.5
Flange D
19.1
Thread Length L1
10.1
Head Lengt L2
11.2
Spannersize SW
13
Washer T
1.0
Washer R
22.7
Type
A
Reference No.   EP 437 - M 14 x 1.5
Thread d1
M 16 x 1.5
Flange D
21.7
Thread Length L1
7.5
Head Lengt L2
11.6
Spannersize SW
17
Washer T
1.0
Washer R
24.5
Type
A
Reference No.   EP 437 - M 16 x 1.5
Thread d1
M 18 x 1.5
Flange D
23.8
Thread Length L1
8.6
Head Lengt L2
12.3
Spannersize SW
17
Washer T
1.0
Washer R
26.5
Type
A
Reference No.   EP 437 - M 18 x 1.5
Thread d1
M 20 x 1.5
Flange D
25.8
Thread Length L1
8.5
Head Lengt L2
15.5
Spannersize SW
19
Washer T
1.0
Washer R
28.7
Type
A
Reference No.   EP 437 - M 20 x 1.5
Thread d1
M 22 x 1.5
Flange D
26.7
Thread Length L1
8.6
Head Lengt L2
15.5
Spannersize SW
19
Washer T
1.0
Washer R
29.5
Type
A
Reference No.   EP 437 - M 22 x 1.5
Thread d1
M 24 x 1.5
Flange D
31.2
Thread Length L1
10.6
Head Lengt L2
15.2
Spannersize SW
24
Washer T
1.0
Washer R
32.5
Type
A
Reference No.   EP 437 - M 24 x 1.5
Thread d1
M 26 x 1.5
Flange D
31.8
Thread Length L1
8.5
Head Lengt L2
15.5
Spannersize SW
24
Washer T
1.0
Washer R
33.6
Type
A
Reference No.   EP 437 - M 26 x 1.5
Thread d1
M 27 x 2
Flange D
32.1
Thread Length L1
11.5
Head Lengt L2
15.4
Spannersize SW
24
Washer T
1.0
Washer R
33.5
Type
A
Reference No.   EP 437 - M 27 x 2
Thread d1
M 33 x 2
Flange D
39.6
Thread Length L1
11.5
Head Lengt L2
15.6
Spannersize SW
27
Washer T
1.0
Washer R
41.5
Type
B
Reference No.   EP 437 - M 33 x 2
Thread d1
M 42 x 2
Flange D
49.8
Thread Length L1
11.5
Head Lengt L2
16.6
Spannersize SW
36
Washer T
1.0
Washer R
51.0
Type
B
Reference No.   EP 437 - M 42 x 2
  ISO 11926-1
Thread d1
.7 / 16" - 20 UNF
Flange D
21.0
Thread Length L1
10.0
Head Lengt L2
10.2
Spannersize SW
13
Washer T
1.0
Washer R
22.0
Type
A
Reference No.   EP 437 - .7 / 16" - 20 UNF
Thread d1
.1/ 2" - 20 UNF
Flange D
22.8
Thread Length L1
9.6
Head Lengt L2
11.3
Spannersize SW
13
Washer T
1.0
Washer R
24.0
Type
A
Reference No.   EP 437 - .1/ 2" - 20 UNF
Thread d1
.9 / 16" - 18 UNF
Flange D
24.8
Thread Length L1
9.5
Head Lengt L2
11.3
Spannersize SW
13
Washer T
1.0
Washer R
26.0
Type
A
Reference No.   EP 437 - .9 / 16" - 18 UNF SF4
Thread d1
.5 / 8" - 18 UNF
Flange D
24.9
Thread Length L1
10.5
Head Lengt L2
13.2
Spannersize SW
17
Washer T
1.0
Washer R
26.0
Type
A
Reference No.   EP 437 - .5 / 8" - 18 UNF
Thread d1
.3 / 4" - 16 UNF
Flange D
25.6
Thread Length L1
8.9
Head Lengt L2
14.3
Spannersize SW
17
Washer T
1.0
Washer R
27.0
Type
A
Reference No.   EP 437 - .3 / 4" - 16 UNF
Thread d1
.7 / 8" - 14 UNF
Flange D
33.9
Thread Length L1
12.5
Head Lengt L2
13.6
Spannersize SW
19
Washer T
1.0
Washer R
35.0
Type
A
Reference No.   EP 437 - .7 / 8" - 14 UNF
Thread d1
1.1 /16" - 12 UN
Flange D
40.7
Thread Length L1
12.5
Head Lengt L2
13.4
Spannersize SW
24
Washer T
1.0
Washer R
42.0
Type
A
Reference No.   EP 437 - 1.1 / 16" - 12 UN
Thread d1
1.5 /16" - 12 UN
Flange D
42.1
Thread Length L1
13.5
Head Lengt L2
16.5
Spannersize SW
27
Washer T
1.0
Washer R
43.0
Type
A
Reference No.   EP 437 - 1.5 / 16" - 12 UN
Thread d1
1.5 / 8" - 12 UN
Flange D
55.6
Thread Length L1
15.7
Head Lengt L2
16.3
Spannersize SW
36
Washer T
1.0
Washer R
59.0
Type
A
Reference No.   EP 437 - 1.5 / 8" - 12 UN
Thread d1
1.5 / 8" - 16 UN
Flange D
57.6
Thread Length L1
15.8
Head Lengt L2
16.6
Spannersize SW
36
Washer T
1.0
Washer R
59.0
Type
A
Reference No.   EP 437 - 1.5 / 8" - 16 UN

PROTEC products and specifications are subject to improvement and change without notice.

CAPTOP® EP 437 Individual Productions:
On request we develop and produce individually tailored solutions along with the standard items of this range: If you require additional dimensions, different materials and new colours. We would be pleased to assist you.

Delivery Service:
Orders that arrive before midday can be despatched on the same day, using either our standard service or via a faster service if required.

Nylon 6 guarantees a very high resistance against hydraulic fluids, acids, base alkalines and Solvents.

Extremely economical when compared to metal.

Threaded sealing plug design EP 435 complete with washer provides an outstanding seal force useable under complicated working conditions.

On request we develop and produce individually tailored solutions along with the standard items of this range: If you require additional dimensions, different materials and new colours. We would be pleased to assist you.

Ask for free no-obligation samples and more information on our contact form.
We will promptly take care of your request and get in touch with you.
Please click here.


You will finde more details on how we protect you data during the chat session in our privacy policy.

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Certified production & quality management

PROTEC meets the most stringent demands of safety and operations reliability. International approvals and certifications such as UL, CSA, VDE, VDA 6.1 and DIN EN ISO 9001: 2015 demonstrate total quality commitment on superior level.

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