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Keylocking Thread Inserts

In stock

Quickly repair stripped, damaged or worn out threads with a new stronger thread using keylocking inserts. Keylocking inserts are easily installed using standard drills and taps. Once the locking keys are driven down, the insert is tightly locked and will not turn. Steel inserts are C1215, parkerized. Stainless inserts are 303, passivated. Internal threads are class 2B, external threads are 2A. Inserts with internal thread size 5⁄16 or M7 and larger have four locking keys. Smaller sizes have two locking keys. Solid inserts allow you to relocate or fill in holes that are too large. All the inserts listed are in stock for same day shipment.

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99 results
Product SKUs information
Item Code Price range Availability Insert Length Minimum Internal Thread Size Special Offer Maximum Internal Thread Size Brand View
$3.40 - $3.40 Request the lead time here
0.430 in
5/16-18
Reid Select
$7.70 - $7.70 Request the lead time here
0.810 in
9/16-12
Reid Select
$34.24 - $34.24 44 In stock
1.370 in
1-8
Reid Select
$3.12 - $3.12 183 In stock
0.37 in
1/4-20
Reid Select
$5.80 - $5.80 Request the lead time here
0.620 in
1/2-13
Reid Select
$17.33 - $17.33 Request the lead time here
0.68 in
1/2-13
Reid Select
$27.87 - $27.87 Request the lead time here
0.430 in
Not Applicable
Reid Select
$3.05 - $3.05 60 In stock
0.310 in
#10-32
Reid Select
$5.80 - $5.80 Request the lead time here
0.620 in
1/2-20
Reid Select
$167.86 - $167.86 Request the lead time here
2.000 in
1-1/2-12
Reid Select
$3.82 - $3.82 50 In stock
0.500 in
3/8-24
Reid Select
$2.07 - $2.07 83 In stock
0.472 in
M8 x 1
Reid Select
$3.87 - $3.87 13 In stock
0.310 in
#10-24
Reid Select
$14.66 - $14.66 Request the lead time here
0.620 in
7/16-14
Reid Select
$20.36 - $20.36 Request the lead time here
1.120 in
3/4-10
Reid Select
$5.73 - $5.73 8 In stock
0.37 in
1/4-20
Reid Select
$57.73 - $57.73 Request the lead time here
0.430 in
5/16-18
Reid Select
$6.37 - $6.37 Request the lead time here
0.430 in
5/16-24
Reid Select
$10.71 - $10.71 1 In stock
0.870 in
5/8-18
Reid Select
$9.12 - $9.12 Request the lead time here
0.430 in
5/16-24
Reid Select
  • of 5
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-18, Insert Length=10.9 mm | 0.430 in

KLI-65903

Price Range
$3.40 - $3.40

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65903
  • Maximum Internal Thread Size
    5/16-18
  • Maximum External Thread Size
    1/2-13
  • Insert Length
    0.430 in
Key locking Thread Insert; , Maximum Internal Thread Size=9/16-12, Insert Length=20.6 mm | 0.810 in

KLI-65907

Price Range
$7.70 - $7.70

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65907
  • Maximum Internal Thread Size
    9/16-12
  • Maximum External Thread Size
    3/4-16
  • Insert Length
    0.810 in
Key locking Thread Insert; , Maximum Internal Thread Size=1-8, Insert Length=34.8 mm | 1.370 in

KLI-65911

Price Range
$34.24 - $34.24

Stock Levels
44 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65911
  • Maximum Internal Thread Size
    1-8
  • Maximum External Thread Size
    1-3/8-12
  • Insert Length
    1.370 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-20, Insert Length=9.4 mm | 0.37 in

KLI-65922

Price Range
$3.12 - $3.12

Stock Levels
183 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65922
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    0.37 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=15.7 mm | 0.620 in

KLI-65926

Price Range
$5.80 - $5.80

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65926
  • Maximum Internal Thread Size
    1/2-13
  • Maximum External Thread Size
    5/8-11
  • Insert Length
    0.620 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=17.3 mm | 0.68 in

KLI-65938

Price Range
$17.33 - $17.33

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65938
  • Maximum Internal Thread Size
    1/2-13
  • Maximum External Thread Size
    7/8-14
  • Insert Length
    0.68 in
Key locking Thread Insert; , Maximum Internal Thread Size=Not Applicable, Insert Length=10.9 mm | 0.430 in

KLI-66004

Price Range
$27.87 - $27.87

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66004
  • Maximum Internal Thread Size
    Not Applicable
  • Maximum External Thread Size
    1/2-13
  • Insert Length
    0.430 in
Key locking Thread Insert; , Maximum Internal Thread Size=#10-32, Insert Length=7.9 mm | 0.310 in

KLI-66101

Price Range
$3.05 - $3.05

Stock Levels
60 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66101
  • Maximum Internal Thread Size
    #10-32
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    0.310 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-20, Insert Length=15.7 mm | 0.620 in

KLI-66106

Price Range
$5.80 - $5.80

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66106
  • Maximum Internal Thread Size
    1/2-20
  • Maximum External Thread Size
    3/4-16
  • Insert Length
    0.620 in
Key locking Thread Insert; , Maximum Internal Thread Size=1-1/2-12, Insert Length=50.8 mm | 2.000 in

KLI-66116

Price Range
$167.86 - $167.86

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66116
  • Maximum Internal Thread Size
    1-1/2-12
  • Maximum External Thread Size
    1-7/8-12
  • Insert Length
    2.000 in
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-24, Insert Length=12.7 mm | 0.500 in

KLI-66124

Price Range
$3.82 - $3.82

Stock Levels
50 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66124
  • Maximum Internal Thread Size
    3/8-24
  • Maximum External Thread Size
    1/2-13
  • Insert Length
    0.500 in
Key locking Thread Insert; , Maximum Internal Thread Size=M8 x 1, Insert Length=12.0 mm | 0.472 in

KLI-66153

Price Range
$2.07 - $2.07

Stock Levels
83 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66153
  • Maximum Internal Thread Size
    M8 x 1
  • Maximum External Thread Size
    M12 x 1.25
  • Insert Length
    0.472 in
Key locking Thread Insert; , Maximum Internal Thread Size=#10-24, Insert Length=7.9 mm | 0.310 in

KLI-66301

Price Range
$3.87 - $3.87

Stock Levels
13 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66301
  • Maximum Internal Thread Size
    #10-24
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    0.310 in
Key locking Thread Insert; , Maximum Internal Thread Size=7/16-14, Insert Length=15.7 mm | 0.620 in

KLI-66305

Price Range
$14.66 - $14.66

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66305
  • Maximum Internal Thread Size
    7/16-14
  • Maximum External Thread Size
    5/8-11
  • Insert Length
    0.620 in
Key locking Thread Insert; , Maximum Internal Thread Size=3/4-10, Insert Length=28.4 mm | 1.120 in

KLI-66309

Price Range
$20.36 - $20.36

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66309
  • Maximum Internal Thread Size
    3/4-10
  • Maximum External Thread Size
    1-1/8-12
  • Insert Length
    1.120 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-20, Insert Length=9.4 mm | 0.37 in

KLI-66322

Price Range
$5.73 - $5.73

Stock Levels
8 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66322
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    0.37 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-18, Insert Length=10.9 mm | 0.430 in

KLI-66335

Price Range
$57.73 - $57.73

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66335
  • Maximum Internal Thread Size
    5/16-18
  • Maximum External Thread Size
    9/16-12
  • Insert Length
    0.430 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-24, Insert Length=10.9 mm | 0.430 in

KLI-66503

Price Range
$6.37 - $6.37

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66503
  • Maximum Internal Thread Size
    5/16-24
  • Maximum External Thread Size
    1/2-13
  • Insert Length
    0.430 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/8-18, Insert Length=22.1 mm | 0.870 in

KLI-66508

Price Range
$10.71 - $10.71

Stock Levels
1 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66508
  • Maximum Internal Thread Size
    5/8-18
  • Maximum External Thread Size
    7/8-14
  • Insert Length
    0.870 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-24, Insert Length=10.9 mm | 0.430 in

KLI-66523

Price Range
$9.12 - $9.12

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66523
  • Maximum Internal Thread Size
    5/16-24
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    0.430 in