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Threaded O-ring Plugs - UNF Threads

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, LDPE, HDPE, Nylon
  • Colour: Yellow, Red, Natural
  • Material Flammability Standard: UL94 V-0

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31 results
Product SKUs information
Item Code Price range Availability Compatible Thread Sizes (All) View
$0.3725 - $4.935 15428 In stock
1-5/8-12
$0.1968 - $2.5887 12000 In stock
3/4-16
$0.7418 - $9.8095 5600 In stock
1-7/8-12
$0.3226 - $4.2841 16383 In stock
1-3/16-12
$0.1786 - $2.3767 19170 In stock
5/8-18
BL13D $0.6146 - $8.1291 22246 In stock
1-5/8-12
$0.1401 - $1.8621 48000 In stock
7/16-24
BL3L $0.2089 - $2.7703 106607 In stock
7/16-20
$0.1636 - $2.1497 In production
9/16-18
$0.1401 - $1.8621 5706 In stock
7/16-20
$0.3468 - $4.5868 16892 In stock
1-5/16-12
$0.436 - $5.7676 16100 In stock
1-7/8-12
BL7J $0.3271 - $4.3446 167926 In stock
3/4-16
BL8H $0.374 - $4.9653 279432 In stock
7/8-14
BL4B $0.2422 - $3.2092 6042 In stock
1/2-13
BL12H $0.5709 - $7.5539 46083 In stock
1-5/16-12
$0.2286 - $3.0126 18589 In stock
7/8-14
$0.265 - $3.497 16682 In stock
1-14
BL10I $0.4891 - $6.4792 43218 In stock
1-1/16-12
$0.2997 - $3.9663 3000 In stock
1-1/16-12
  • of 2
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-5/8-12 ; Threaded - Plastic Molded O-Ring

BLM13B

Price Range
$4.935 - $0.3725

Stock Levels
15428 In stock
Attributes
  • Head Height
    0.343 in
  • Overall Diameter
    2.154 in
  • Overall Height
    0.933 in
  • Threaded Length
    0.594 in
  • Compatible Thread Sizes (All)
    1-5/8-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 3/4-16 ; Threaded - Plastic Molded O-Ring

BLM7B

Price Range
$2.5887 - $0.1968

Stock Levels
12000 In stock
Attributes
  • Head Height
    0.406 in
  • Overall Diameter
    1.02 in
  • Overall Height
    0.811 in
  • Threaded Length
    0.406 in
  • Compatible Thread Sizes (All)
    3/4-16
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-7/8-12 ; Threaded

BL14C

Price Range
$9.8095 - $0.7418

Stock Levels
5600 In stock
Attributes
  • Head Height
    0.3 in
  • Overall Diameter
    2.126 in
  • Overall Height
    1.142 in
  • Threaded Length
    0.750 in
  • Compatible Thread Sizes (All)
    1-7/8-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-3/16-12 ; Threaded - Plastic Molded O-Ring

BLM11B

Price Range
$4.2841 - $0.3226

Stock Levels
16383 In stock
Attributes
  • Head Height
    0.343 in
  • Overall Diameter
    1.5 in
  • Overall Height
    0.933 in
  • Threaded Length
    0.594 in
  • Compatible Thread Sizes (All)
    1-3/16-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 5/8-18 ; Threaded - Plastic Molded O-Ring

BLM6B

Price Range
$2.3767 - $0.1786

Stock Levels
19170 In stock
Attributes
  • Head Height
    0.315 in
  • Overall Diameter
    0.819 in
  • Overall Height
    0.689 in
  • Threaded Length
    0.375 in
  • Compatible Thread Sizes (All)
    5/8-18
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-5/8-12 ; Threaded

BL13D

Price Range
$8.1291 - $0.6146

Stock Levels
22246 In stock
Attributes
  • Head Height
    0.3 in
  • Overall Diameter
    1.685 in
  • Overall Height
    1.161 in
  • Threaded Length
    0.770 in
  • Compatible Thread Sizes (All)
    1-5/8-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/16-24 ; Threaded - Plastic Molded O-Ring

BLM3-24B

Price Range
$1.8621 - $0.1401

Stock Levels
48000 In stock
Attributes
  • Head Height
    0.28 in
  • Overall Diameter
    0.661 in
  • Overall Height
    0.622 in
  • Threaded Length
    0.344 in
  • Compatible Thread Sizes (All)
    7/16-24
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/16-20 ; Threaded

BL3L

Price Range
$2.7703 - $0.2089

Stock Levels
106607 In stock
Attributes
  • Head Height
    0.18 in
  • Overall Diameter
    0.622 in
  • Overall Height
    0.661 in
  • Threaded Length
    0.390 in
  • Compatible Thread Sizes (All)
    7/16-20
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 9/16-18 ; Threaded - Plastic Molded O-Ring

BLM5B

Price Range
$2.1497 - $0.1636

Stock Levels
In production
Attributes
  • Head Height
    0.323 in
  • Overall Diameter
    0.799 in
  • Overall Height
    0.673 in
  • Threaded Length
    0.350 in
  • Compatible Thread Sizes (All)
    9/16-18
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/16-20 ; Threaded - Plastic Molded O-Ring

BLM3B

Price Range
$1.8621 - $0.1401

Stock Levels
5706 In stock
Attributes
  • Head Height
    0.28 in
  • Overall Diameter
    0.661 in
  • Overall Height
    0.622 in
  • Threaded Length
    0.344 in
  • Compatible Thread Sizes (All)
    7/16-20
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-5/16-12 ; Threaded - Plastic Molded O-Ring

BLM12B

Price Range
$4.5868 - $0.3468

Stock Levels
16892 In stock
Attributes
  • Head Height
    0.343 in
  • Overall Diameter
    1.74 in
  • Overall Height
    0.933 in
  • Threaded Length
    0.594 in
  • Compatible Thread Sizes (All)
    1-5/16-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-7/8-12 ; Threaded - Plastic Molded O-Ring

BLM14B

Price Range
$5.7676 - $0.436

Stock Levels
16100 In stock
Attributes
  • Head Height
    0.343 in
  • Overall Diameter
    2.185 in
  • Overall Height
    0.933 in
  • Threaded Length
    0.594 in
  • Compatible Thread Sizes (All)
    1-7/8-12
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 3/4-16 ; Threaded

BL7J

Price Range
$4.3446 - $0.3271

Stock Levels
167926 In stock
Attributes
  • Head Height
    0.19 in
  • Overall Diameter
    0.941 in
  • Overall Height
    0.799 in
  • Threaded Length
    0.520 in
  • Compatible Thread Sizes (All)
    3/4-16
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/8-14 ; Threaded

BL8H

Price Range
$4.9653 - $0.374

Stock Levels
279432 In stock
Attributes
  • Head Height
    0.24 in
  • Overall Diameter
    1.059 in
  • Overall Height
    0.89 in
  • Threaded Length
    0.560 in
  • Compatible Thread Sizes (All)
    7/8-14
Threaded O-Ring Plug - Compatible Thread Standard - UNC ; Compatible Thread Sizes - 1/2-13 ; Threaded

BL4B

Price Range
$3.2092 - $0.2422

Stock Levels
6042 In stock
Attributes
  • Head Height
    0.281 in
  • Overall Diameter
    0.689 in
  • Overall Height
    0.78 in
  • Threaded Length
    0.410 in
  • Compatible Thread Sizes (All)
    1/2-13
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-5/16-12 ; Threaded

BL12H

Price Range
$7.5539 - $0.5709

Stock Levels
46083 In stock
Attributes
  • Head Height
    0.29 in
  • Overall Diameter
    1.61 in
  • Overall Height
    1.079 in
  • Threaded Length
    0.700 in
  • Compatible Thread Sizes (All)
    1-5/16-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/8-14 ; Threaded - Plastic Molded O-Ring

BLM8B

Price Range
$3.0126 - $0.2286

Stock Levels
18589 In stock
Attributes
  • Head Height
    0.311 in
  • Overall Diameter
    1.157 in
  • Overall Height
    0.78 in
  • Threaded Length
    0.469 in
  • Compatible Thread Sizes (All)
    7/8-14
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-14 ; Threaded - Plastic Molded O-Ring

BLM9B

Price Range
$3.497 - $0.265

Stock Levels
16682 In stock
Attributes
  • Head Height
    0.311 in
  • Overall Diameter
    1.248 in
  • Overall Height
    0.811 in
  • Threaded Length
    0.500 in
  • Compatible Thread Sizes (All)
    1-14
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-1/16-12 ; Threaded

BL10I

Price Range
$6.4792 - $0.4891

Stock Levels
43218 In stock
Attributes
  • Head Height
    0.252 in
  • Overall Diameter
    1.311 in
  • Overall Height
    1 in
  • Threaded Length
    0.660 in
  • Compatible Thread Sizes (All)
    1-1/16-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-1/16-12 ; Threaded - Plastic Molded O-Ring

BLM10B

Price Range
$3.9663 - $0.2997

Stock Levels
3000 In stock
Attributes
  • Head Height
    0.311 in
  • Overall Diameter
    1.449 in
  • Overall Height
    0.902 in
  • Threaded Length
    0.594 in
  • Compatible Thread Sizes (All)
    1-1/16-12
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1/2-20 ; Threaded - Plastic Molded O-Ring

BLM4B

Price Range
$1.968 - $0.1484

Stock Levels
12000 In stock
Attributes
  • Head Height
    0.315 in
  • Overall Diameter
    0.728 in
  • Overall Height
    0.657 in
  • Threaded Length
    0.344 in
  • Compatible Thread Sizes (All)
    1/2-20
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-3/16-12 ; Threaded

BL11D

Price Range
$7.3874 - $0.5585

Stock Levels
860 In stock
Attributes
  • Head Height
    0.3 in
  • Overall Diameter
    1.5 in
  • Overall Height
    1.091 in
  • Threaded Length
    0.700 in
  • Compatible Thread Sizes (All)
    1-3/16-12
UNF Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 9/16-18 ; Threaded

BL5K

Price Range
$3.6483 - $0.2757

Stock Levels
165286 In stock
Attributes
  • Head Height
    0.18 in
  • Overall Diameter
    0.752 in
  • Overall Height
    0.689 in
  • Threaded Length
    0.420 in
  • Compatible Thread Sizes (All)
    9/16-18
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-5/16-12 ; Threaded

BL12M

Price Range
$11.0411 - $0.8345

Stock Levels
In production
Attributes
  • Head Height
    0.380 in
  • Head Width
    1.070 in
  • Overall Diameter
    1.070 in
  • Overall Height
    1.610 in
  • Threaded Length
    0.700 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 3/4-16 ; Threaded

BL7G

Price Range
$6.3822 - $0.482

Stock Levels
10500 In stock
Attributes
  • Head Height
    0.280 in
  • Head Width
    0.680 in
  • Overall Diameter
    0.680 in
  • Overall Height
    0.940 in
  • Threaded Length
    0.520 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-1/16-12 ; Threaded

BL10M

Price Range
$8.4244 - $0.6367

Stock Levels
15673 In stock
Attributes
  • Head Height
    0.340 in
  • Head Width
    0.870 in
  • Overall Diameter
    0.870 in
  • Overall Height
    1.310 in
  • Threaded Length
    0.660 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/16-20 ; Threaded

BL3I

Price Range
$5.9832 - $0.4516

Stock Levels
14970 In stock
Attributes
  • Head Height
    0.270 in
  • Head Width
    0.430 in
  • Overall Diameter
    0.430 in
  • Overall Height
    0.620 in
  • Threaded Length
    0.390 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-5/8-12 ; Threaded

BL13C

Price Range
$11.9187 - $0.90

Stock Levels
1000 In stock
Attributes
  • Head Height
    0.390 in
  • Head Width
    1.125 in
  • Overall Diameter
    1.125 in
  • Overall Height
    1.880 in
  • Threaded Length
    0.770 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 7/8-14 ; Threaded

BL8P

Price Range
$6.9566 - $0.5266

Stock Levels
9450 In stock
Attributes
  • Head Height
    0.330 in
  • Head Width
    0.750 in
  • Overall Diameter
    0.750 in
  • Overall Height
    1.060 in
  • Threaded Length
    0.560 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 1-3/16-12 ; Threaded

BL11C

Price Range
$8.9988 - $0.6799

Stock Levels
2550 In stock
Attributes
  • Head Height
    0.390 in
  • Head Width
    1.000 in
  • Overall Diameter
    1.000 in
  • Overall Height
    1.500 in
  • Threaded Length
    0.700 in
Threaded O-Ring Plug - Compatible Thread Standard - UNF ; Compatible Thread Sizes - 9/16-18 ; Threaded

BL5N

Price Range
$6.1908 - $0.4675

Stock Levels
20350 In stock
Attributes
  • Head Height
    0.270 in
  • Head Width
    0.500 in
  • Overall Diameter
    0.500 in
  • Overall Height
    0.750 in
  • Threaded Length
    0.420 in