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Self-Locking Thread Inserts

In stock

These inserts have automatic self-locking external threads for use with use-activated epoxy adhesive. They prevent or repair stripped threads. There is no special too required for installation, install with a bolt and wrench or a screwdriver.

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Use the filters or search below to find what you're looking for

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Product SKUs information
Item Code Price range Availability Maximum External Thread Size Thread Density Special Offer Maximum Internal Thread Size Brand Buy
329-1614
$5.27 - $5.85 Backordered. Click here to request lead time.
1-3/8-12
Fine
#1-14
E-Z Lok
303-5
$3.83 - $4.26 20 In stock
1/2-13
Coarse
5/16-18
E-Z Lok
303-006
$2.39 - $2.65 26 In stock
1/4-20
Coarse
#6-32
E-Z Lok
550-5
$2.70 - $3.00 Backordered. Click here to request lead time.
M12 x 1.75
5/16-18
E-Z Lok
550-006
$1.76 - $1.95 Backordered. Click here to request lead time.
M6 x 1.0
#6-32
E-Z Lok
303-4
$3.38 - $3.38 15 In stock
7/16-14
Coarse
1/4-20
E-Z Lok
450-10
$3.79 - $4.21 78 In stock
M16 x 2.0
M10 x 1.5
E-Z Lok
550-4
$2.70 - $3.00 Backordered. Click here to request lead time.
M12 x 1.75
1/4-20
E-Z Lok
303-10
$6.89 - $7.66 137 In stock
7/8-9
Coarse
5/8-11
E-Z Lok
450-12
$4.23 - $4.70 35 In stock
M16 x 2.0
M12 x 1.75
E-Z Lok
303-624
$4.00 - $4.44 Backordered. Click here to request lead time.
9/16-12
Fine
3/8-24
E-Z Lok
329-9
$2.36 - $2.62 1 In stock
3/4-10
Coarse
9/16-12
E-Z Lok
650-14
$1.31 - $1.31 4 In stock
7/8-9
M14 x 2
E-Z Lok
329-524
$1.48 - $1.64 4 In stock
1/2-13
Fine
5/16-24
E-Z Lok
335-8
$2.71 - $3.01 1 In stock
7/8-9
Coarse
1/2-13
E-Z Lok
450-3
$1.80 - $2.00 80 In stock
M6 x 1.0
M3 x .5
E-Z Lok
303-3
$3.18 - $3.18 7 In stock
3/8-16
Coarse
#10-24
E-Z Lok
329-7
$1.86 - $2.07 34 In stock
5/8-11
Coarse
7/16-14
E-Z Lok
303-332
$1.44 - $1.44 5 In stock
3/8-16
Fine
#10-32
E-Z Lok
329-6
$1.58 - $1.75 154 In stock
9/16-12
Coarse
3/8-16
E-Z Lok
  • of 5
Self-Locking Thread Insert; Maximum Internal Thread Size=#1-14, Maximum External Thread Size=1-3/8-12, Thread Density=Fine

329-1614

Price Range
$5.85 - $5.27

Stock Levels
Backordered. Click here to request lead time.
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    1.250 in
  • Maximum External Thread Size
    1-3/8-12
  • Maximum Internal Thread Size
    #1-14
  • Thread Density
    Fine
Self-Locking Thread Insert; Maximum Internal Thread Size=5/16-18, Maximum External Thread Size=1/2-13, Thread Density=Coarse

303-5

Price Range
$4.26 - $3.83

Stock Levels
20 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .484 in
  • Maximum External Thread Size
    1/2-13
  • Maximum Internal Thread Size
    5/16-18
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=#6-32, Maximum External Thread Size=1/4-20, Thread Density=Coarse

303-006

Price Range
$2.65 - $2.39

Stock Levels
26 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .280 in
  • Maximum External Thread Size
    1/4-20
  • Maximum Internal Thread Size
    #6-32
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=5/16-18, Maximum External Thread Size=M12 x 1.75,

550-5

Price Range
$3.00 - $2.70

Stock Levels
Backordered. Click here to request lead time.
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    0.49 in
  • Maximum External Thread Size
    M12 x 1.75
  • Maximum Internal Thread Size
    5/16-18
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=#6-32, Maximum External Thread Size=M6 x 1.0,

550-006

Price Range
$1.95 - $1.76

Stock Levels
Backordered. Click here to request lead time.
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    0.26 in
  • Maximum External Thread Size
    M6 x 1.0
  • Maximum Internal Thread Size
    #6-32
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=1/4-20, Maximum External Thread Size=7/16-14, Thread Density=Coarse

303-4

Price Range
$3.38 - $3.38

Stock Levels
15 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .437 in
  • Maximum External Thread Size
    7/16-14
  • Maximum Internal Thread Size
    1/4-20
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=M10 x 1.5, Maximum External Thread Size=M16 x 2.0,

450-10

Price Range
$4.21 - $3.79

Stock Levels
78 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    0.669 in
  • Maximum External Thread Size
    M16 x 2.0
  • Maximum Internal Thread Size
    M10 x 1.5
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=1/4-20, Maximum External Thread Size=M12 x 1.75,

550-4

Price Range
$3.00 - $2.70

Stock Levels
Backordered. Click here to request lead time.
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    0.49 in
  • Maximum External Thread Size
    M12 x 1.75
  • Maximum Internal Thread Size
    1/4-20
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=5/8-11, Maximum External Thread Size=7/8-9, Thread Density=Coarse

303-10

Price Range
$7.66 - $6.89

Stock Levels
137 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .687 in
  • Maximum External Thread Size
    7/8-9
  • Maximum Internal Thread Size
    5/8-11
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=M12 x 1.75, Maximum External Thread Size=M16 x 2.0,

450-12

Price Range
$4.70 - $4.23

Stock Levels
35 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    0.669 in
  • Maximum External Thread Size
    M16 x 2.0
  • Maximum Internal Thread Size
    M12 x 1.75
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=3/8-24, Maximum External Thread Size=9/16-12, Thread Density=Fine

303-624

Price Range
$4.44 - $4.00

Stock Levels
Backordered. Click here to request lead time.
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .515 in
  • Maximum External Thread Size
    9/16-12
  • Maximum Internal Thread Size
    3/8-24
  • Thread Density
    Fine
Self-Locking Thread Insert; Maximum Internal Thread Size=9/16-12, Maximum External Thread Size=3/4-10, Thread Density=Coarse

329-9

Price Range
$2.62 - $2.36

Stock Levels
1 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .656 in
  • Maximum External Thread Size
    3/4-10
  • Maximum Internal Thread Size
    9/16-12
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=M14 x 2, Maximum External Thread Size=7/8-9,

650-14

Price Range
$1.31 - $1.31

Stock Levels
4 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .687 in
  • Maximum External Thread Size
    7/8-9
  • Maximum Internal Thread Size
    M14 x 2
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=5/16-24, Maximum External Thread Size=1/2-13, Thread Density=Fine

329-524

Price Range
$1.64 - $1.48

Stock Levels
4 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .484 in
  • Maximum External Thread Size
    1/2-13
  • Maximum Internal Thread Size
    5/16-24
  • Thread Density
    Fine
Self-Locking Thread Insert; Maximum Internal Thread Size=1/2-13, Maximum External Thread Size=7/8-9, Thread Density=Coarse

335-8

Price Range
$3.01 - $2.71

Stock Levels
1 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .687 in
  • Maximum External Thread Size
    7/8-9
  • Maximum Internal Thread Size
    1/2-13
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=M3 x .5, Maximum External Thread Size=M6 x 1.0,

450-3

Price Range
$2.00 - $1.80

Stock Levels
80 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    0.26 in
  • Maximum External Thread Size
    M6 x 1.0
  • Maximum Internal Thread Size
    M3 x .5
  • Material
    Steel
Self-Locking Thread Insert; Maximum Internal Thread Size=#10-24, Maximum External Thread Size=3/8-16, Thread Density=Coarse

303-3

Price Range
$3.18 - $3.18

Stock Levels
7 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .406 in
  • Maximum External Thread Size
    3/8-16
  • Maximum Internal Thread Size
    #10-24
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=7/16-14, Maximum External Thread Size=5/8-11, Thread Density=Coarse

329-7

Price Range
$2.07 - $1.86

Stock Levels
34 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .656 in
  • Maximum External Thread Size
    5/8-11
  • Maximum Internal Thread Size
    7/16-14
  • Thread Density
    Coarse
Self-Locking Thread Insert; Maximum Internal Thread Size=#10-32, Maximum External Thread Size=3/8-16, Thread Density=Fine

303-332

Price Range
$1.44 - $1.44

Stock Levels
5 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .406 in
  • Maximum External Thread Size
    3/8-16
  • Maximum Internal Thread Size
    #10-32
  • Thread Density
    Fine
Self-Locking Thread Insert; Maximum Internal Thread Size=3/8-16, Maximum External Thread Size=9/16-12, Thread Density=Coarse

329-6

Price Range
$1.75 - $1.58

Stock Levels
154 In stock
Attributes
  • Brand
    E-Z Lok
  • Overall Length
    .515 in
  • Maximum External Thread Size
    9/16-12
  • Maximum Internal Thread Size
    3/8-16
  • Thread Density
    Coarse