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UNF Threaded Plugs

In stock

Threaded O-ring Plugs for UNF Threads include a compressed flange lip and an O-ring (optional) to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a hex wrench, screwdriver, or hand. Often used on flat-faced hydraulic fittings, it is recommended when strength and resistance are desired as it can withstand temperatures that range from -40F to 230F | -40C to 110C. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Material: PP, HDPE
  • Colour: Yellow, Black, Red
  • Material Flammability Standard: UL94 V-0

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20 results
Product SKUs information
Item Code Price range Availability S D Thread Sizes (All) Colour H L Thread Standard View
BL5A £ 0.0708 - £ 0.1788 Request the lead time here
12.7 mm
19.1 mm
9/16 in - 18 UNF
Yellow
15.2 mm
10.7 mm
£ 0.1202 - £ 0.3215 Request the lead time here
17.3 mm
23.9 mm
3/4 in - 16 UNF
Yellow
18.0 mm
13.2 mm
£ 0.0742 - £ 0.1762 2500 In stock
12.7 mm
17.5 mm
1/2-13
Black
17.6 mm
10.4 mm
UNC
£ 0.1284 - £ 0.3401 Request the lead time here
19.1 mm
26.9 mm
7/8 in - 14 UNF
Yellow
20.3 mm
14.2 mm
£ 0.1431 - £ 0.3614 8400 In stock
19.1 mm
26.9 mm
7/8 in - 14 UNF
Yellow
20.3 mm
14.2 mm
£ 0.1265 - £ 0.3375 Request the lead time here
17.3 mm
23.9 mm
3/4 in - 16 UNF
Yellow
18.0 mm
13.2 mm
£ 0.1644 - £ 0.4119 11840 In stock
22.1 mm
33.3 mm
1 1/16 in - 12 UNF
Yellow
23.1 mm
16.8 mm
£ 0.5287 - £ 1.459 350 In stock
38.1 mm
54.0 mm
1 7/8 in - 12 UNF
Yellow
26.7 mm
19.0 mm
£ 0.3742 - £ 0.9913 Request the lead time here
27.2 mm
40.9 mm
1 5/16 in - 12 UNF
Yellow
25.2 mm
17.8 mm
£ 0.3657 - £ 0.8238 Request the lead time here
28.6 mm
42.8 mm
1 5/8 in - 12 UNF
Yellow
27.2 mm
19.6 mm
BL10I £ 0.3994 - £ 0.481 1800 In stock
22.1 mm
33.3 mm
1 1/16 in - 12 UNF
Yellow
23.1 mm
16.8 mm
£ 0.2551 - £ 0.7999 Request the lead time here
25.4 mm
38.1 mm
1 3/16 in - 12 UNF
Yellow
25.4 mm
17.8 mm
£ 0.4394 - £ 1.1561 Request the lead time here
27.2 mm
40.9 mm
1 5/16 in - 12 UNF
Yellow
25.2 mm
17.8 mm
£ 0.1574 - £ 0.2167 3000 In stock
12.7 mm
17.5 mm
1/2-13
Black
17.6 mm
10.4 mm
UNC
£ 0.557 - £ 1.5361 Request the lead time here
38.1 mm
54.0 mm
1 7/8 in - 12 UNF
Yellow
26.7 mm
19.0 mm
£ 0.1574 - £ 0.4757 3250 In stock
10.9 mm
15.8 mm
7/16 in - 20 UNF
Yellow
14.5 mm
9.9 mm
£ 0.2423 - £ 0.7574 340 In stock
25.4 mm
38.1 mm
1 3/16 in - 12 UNF
Yellow
25.4 mm
17.8 mm
£ 0.141 - £ 0.2203 Request the lead time here
10.9 mm
15.8 mm
7/16 in - 20 UNF
Yellow
14.5 mm
9.9 mm
£ 0.3855 - £ 0.861 Request the lead time here
28.6 mm
42.8 mm
1 5/8 in - 12 UNF
Yellow
27.2 mm
19.6 mm
£ 0.1459 - £ 0.1943 Request the lead time here
12.7 mm
19.1 mm
9/16 in - 18 UNF
Yellow
15.2 mm
10.7 mm
Threaded Plug UNF Threads PP Yellow

BL5A

Price Range
£ 0.1788 - £ 0.0708

Stock Levels
Request the lead time here
Attributes
  • D
    19.1 mm
  • L
    10.7 mm
  • S
    12.7 mm
  • H
    15.2 mm
  • Thread Sizes (All)
    9/16 in - 18 UNF
Threaded Plug UNF Threads PP Yellow

BL7A

Price Range
£ 0.3215 - £ 0.1202

Stock Levels
Request the lead time here
Attributes
  • D
    23.9 mm
  • L
    13.2 mm
  • S
    17.3 mm
  • H
    18.0 mm
  • Thread Sizes (All)
    3/4 in - 16 UNF
Threaded Plug UNC Threads 1/2-13 PP Black

BL4A

Price Range
£ 0.1762 - £ 0.0742

Stock Levels
2500 In stock
Attributes
  • D
    17.5 mm
  • L
    10.4 mm
  • S
    12.7 mm
  • H
    17.6 mm
  • Thread Sizes (All)
    1/2-13
Threaded Plug UNF Threads PP Yellow

BL8A

Price Range
£ 0.3401 - £ 0.1284

Stock Levels
Request the lead time here
Attributes
  • D
    26.9 mm
  • L
    14.2 mm
  • S
    19.1 mm
  • H
    20.3 mm
  • Thread Sizes (All)
    7/8 in - 14 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL8H

Price Range
£ 0.3614 - £ 0.1431

Stock Levels
8400 In stock
Attributes
  • D
    26.9 mm
  • L
    14.2 mm
  • S
    19.1 mm
  • H
    20.3 mm
  • Thread Sizes (All)
    7/8 in - 14 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL7J

Price Range
£ 0.3375 - £ 0.1265

Stock Levels
Request the lead time here
Attributes
  • D
    23.9 mm
  • L
    13.2 mm
  • S
    17.3 mm
  • H
    18.0 mm
  • Thread Sizes (All)
    3/4 in - 16 UNF
Threaded Plug UNF Threads PP Yellow

BL10A

Price Range
£ 0.4119 - £ 0.1644

Stock Levels
11840 In stock
Attributes
  • D
    33.3 mm
  • L
    16.8 mm
  • S
    22.1 mm
  • H
    23.1 mm
  • Thread Sizes (All)
    1 1/16 in - 12 UNF
Threaded Plug UNF Threads PP Yellow

BL14A

Price Range
£ 1.459 - £ 0.5287

Stock Levels
350 In stock
Attributes
  • D
    54.0 mm
  • L
    19.0 mm
  • S
    38.1 mm
  • H
    26.7 mm
  • Thread Sizes (All)
    1 7/8 in - 12 UNF
Threaded Plug UNF Threads PP Yellow

BL12A

Price Range
£ 0.9913 - £ 0.3742

Stock Levels
Request the lead time here
Attributes
  • D
    40.9 mm
  • L
    17.8 mm
  • S
    27.2 mm
  • H
    25.2 mm
  • Thread Sizes (All)
    1 5/16 in - 12 UNF
Threaded Plug UNF Threads PP Yellow

BL13A

Price Range
£ 0.8238 - £ 0.3657

Stock Levels
Request the lead time here
Attributes
  • D
    42.8 mm
  • L
    19.6 mm
  • S
    28.6 mm
  • H
    27.2 mm
  • Thread Sizes (All)
    1 5/8 in - 12 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL10I

Price Range
£ 0.481 - £ 0.3994

Stock Levels
1800 In stock
Attributes
  • D
    33.3 mm
  • L
    16.8 mm
  • S
    22.1 mm
  • H
    23.1 mm
  • Thread Sizes (All)
    1 1/16 in - 12 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL11D

Price Range
£ 0.7999 - £ 0.2551

Stock Levels
Request the lead time here
Attributes
  • D
    38.1 mm
  • L
    17.8 mm
  • S
    25.4 mm
  • H
    25.4 mm
  • Thread Sizes (All)
    1 3/16 in - 12 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL12H

Price Range
£ 1.1561 - £ 0.4394

Stock Levels
Request the lead time here
Attributes
  • D
    40.9 mm
  • L
    17.8 mm
  • S
    27.2 mm
  • H
    25.2 mm
  • Thread Sizes (All)
    1 5/16 in - 12 UNF
Threaded Protection Plug UNC Threads 1/2-13 PP Black

BL4B

Price Range
£ 0.2167 - £ 0.1574

Stock Levels
3000 In stock
Attributes
  • D
    17.5 mm
  • L
    10.4 mm
  • S
    12.7 mm
  • H
    17.6 mm
  • Thread Sizes (All)
    1/2-13
Threaded Protection Plug UNF Threads PP Yellow

BL14C

Price Range
£ 1.5361 - £ 0.557

Stock Levels
Request the lead time here
Attributes
  • D
    54.0 mm
  • L
    19.0 mm
  • S
    38.1 mm
  • H
    26.7 mm
  • Thread Sizes (All)
    1 7/8 in - 12 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL3L

Price Range
£ 0.4757 - £ 0.1574

Stock Levels
3250 In stock
Attributes
  • D
    15.8 mm
  • L
    9.9 mm
  • S
    10.9 mm
  • H
    14.5 mm
  • Thread Sizes (All)
    7/16 in - 20 UNF
Threaded Plug UNF Threads PP Yellow

BL11A

Price Range
£ 0.7574 - £ 0.2423

Stock Levels
340 In stock
Attributes
  • D
    38.1 mm
  • L
    17.8 mm
  • S
    25.4 mm
  • H
    25.4 mm
  • Thread Sizes (All)
    1 3/16 in - 12 UNF
Threaded Plug UNF Threads PP Yellow

BL3A

Price Range
£ 0.2203 - £ 0.141

Stock Levels
Request the lead time here
Attributes
  • D
    15.8 mm
  • L
    9.9 mm
  • S
    10.9 mm
  • H
    14.5 mm
  • Thread Sizes (All)
    7/16 in - 20 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL13D

Price Range
£ 0.861 - £ 0.3855

Stock Levels
Request the lead time here
Attributes
  • D
    42.8 mm
  • L
    19.6 mm
  • S
    28.6 mm
  • H
    27.2 mm
  • Thread Sizes (All)
    1 5/8 in - 12 UNF
Threaded Protection Plug UNF Threads PP Yellow

BL5K

Price Range
£ 0.1943 - £ 0.1459

Stock Levels
Request the lead time here
Attributes
  • D
    19.1 mm
  • L
    10.7 mm
  • S
    12.7 mm
  • H
    15.2 mm
  • Thread Sizes (All)
    9/16 in - 18 UNF