Designed to Protect Threads from Dust, Dirt, and Moisture During Low-Pressure Testing and In-Plant Handling
Size Chart Square Head Threaded Plastic Plug Caps
SPN Size Chart
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Part #
Description
To Fit NPT
Stem Height
mm
in
Threaded Area Length
mm
in
Length
mm
in
Head
mm
in
Box/Mini/Micro QTY
See Prices / Buy Online
SPN0125
Square Head Plugs for NPT Threads - SQUARE HEAD PLUG FOR 1/8-27 NPT THRDS
1/8 - 27
6.4
0.250
7.4
0.290
9.4
0.370
7.1
0.280
60001200120
SPN0250
Polypropylene Plastic Square Head Plugs for NPT Threads - SQUARE HEAD PLUG FOR 1/4-18 NPT THRDS
1/4 - 18
6.4
0.250
8.9
0.350
10.9
0.430
9.7
0.380
60001200120
SPN0375
Square Head Threaded Plastic Plug Caps - SQUARE HEAD PLUG FOR 3/8-18 NPT THRDS
3/8 - 18
6.4
0.250
10.7
0.420
12.4
0.490
11.2
0.440
400080080
SPN0500
Plastic Square Head Bolt for NPT Threads - SQUARE HEAD PLUG FOR 1/2-14 NPT THRDS
1/2 - 14
6.4
0.250
11.9
0.470
14.0
0.550
14.2
0.560
450090090
SPN0750
Plastic NPT Plugs with Square Head - SQUARE HEAD PLUG FOR 3/4-14 NPT THRDS
3/4 - 14
6.4
0.250
13.2
0.520
16.3
0.640
15.7
0.620
200040040
SPN1000
Square Head Plugs for NPT Threads - SQUARE HEAD PLUG FOR 1-11-1/2 NPT THRDS
1 - 11-1/2
6.4
0.250
15.0
0.590
17.8
0.700
20.6
0.810
150030030
SPN1250
Polypropylene Plastic Square Head Plugs for NPT Threads - SQUARE HEAD PLUG FOR 1-1/4-11-1/2 NPT THRDS
1-1/4 - 11-1/2
9.7
0.380
21.1
0.830
24.9
0.980
25.4
1.000
60012012
SPN1500
Square Head Threaded Plastic Plug Caps - SQUARE HEAD PLUG FOR 1-1/2-11-1/2 NPT THRDS
1-1/2 - 11-1/2
9.7
0.380
21.1
0.830
24.9
0.980
31.8
1.250
50010010
Part #
Description
To Fit NPT
Stem Height
mm
in
Threaded Area Length
mm
in
Length
mm
in
Head
mm
in
Box/Mini/Micro QTY
See Prices / Buy Online
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Micropacks are only available for purchase through our online store.
Not sure what part you need? Would you like to consider another type or part, or a different material?
Consult MOCAP's Application Advisor for assistance.
Square Head Plugs for NPT Threads - Information
MOCAP Square Head Plugs are designed for use on NPT threads and fittings. The Square Head design allows for easy installation. The Plugs keep ports protected during low-pressure testing and in-house processing or handling, however these are not intended for permanent applications.
Protects threaded components from moisture, dust and damage during production, shipping and storage, and can also be used as masking during painting and plating. Our SPN Series Threaded Plugs are moulded in Redpolypropylene plastic and sized to fit NPT threads from 1/8-27 thru 1-1/2-11-1/2.
Many Sizes of Our Square Head Plugs for NPT Threads are Stocked for Immediate Shipment.
Most stock sizes are available in Mini-Packs when Smaller Quantities are Needed. To place an order for this product, call 0800 046 7436 or use our Contact Request Form to receive information by e-mail.
