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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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58 results
Product SKUs information
Item Code Price range Availability Insert Length Minimum Internal Thread Size Special Offer Maximum Internal Thread Size Brand View
$5.73 - $5.73 51 In stock
0.37 in
1/4-20
Reid Select
$14.66 - $14.66 Request the lead time here
0.620 in
7/16-20
Reid Select
$3.92 - $3.92 84 In stock
0.37 in
1/4-20
Reid Select
$5.80 - $5.80 120 In stock
0.620 in
1/2-13
Reid Select
$8.29 - $8.29 62 In stock
0.430 in
5/16-18
Reid Select
$4.07 - $4.07 342 In stock
0.310 in
#10-32
Reid Select
$9.12 - $9.12 Request the lead time here
0.430 in
5/16-24
Reid Select
$2.08 - $2.08 20 In stock
0.430 in
5/16-24
Reid Select
$9.12 - $9.12 72 In stock
0.870 in
5/8-11
Reid Select
$34.24 - $34.24 44 In stock
1.370 in
1-8
Reid Select
$22.24 - $22.24 Request the lead time here
0.37 in
1/4-20
Reid Select
$4.73 - $4.73 7 In stock
1.120 in
3/4-16
Reid Select
$14.17 - $14.17 Request the lead time here
0.787 in
M14 x 1.5
Reid Select
$1.57 - $1.57 151 In stock
0.310 in
#8-32
Reid Select
$13.17 - $13.17 40 In stock
1.250 in
7/8-9
Reid Select
$3.40 - $3.40 276 In stock
0.430 in
5/16-18
Reid Select
$21.27 - $21.27 15 In stock
0.870 in
5/8-11
Reid Select
$3.12 - $3.12 182 In stock
0.37 in
1/4-20
Reid Select
$7.20 - $7.20 36 In stock
0.37 in
1/4-20
Reid Select
$18.89 - $18.89 Request the lead time here
0.500 in
3/8-16
Reid Select
  • of 3
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
51 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=7/16-20, Insert Length=15.7 mm | 0.620 in

KLI-66505

Price Range
$14.66 - $14.66

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66505
  • Maximum Internal Thread Size
    7/16-20
  • Maximum External Thread Size
    5/8-11
  • Insert Length
    0.620 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-20, Insert Length=9.4 mm | 0.37 in

KLI-71322

Price Range
$3.92 - $3.92

Stock Levels
84 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69322
  • 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-65906

Price Range
$5.80 - $5.80

Stock Levels
120 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65906
  • Maximum Internal Thread Size
    1/2-13
  • Maximum External Thread Size
    3/4-16
  • Insert Length
    0.620 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-18, Insert Length=10.9 mm | 0.430 in

KLI-66303

Price Range
$8.29 - $8.29

Stock Levels
62 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66303
  • 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=#10-32, Insert Length=7.9 mm | 0.310 in

KLI-66501

Price Range
$4.07 - $4.07

Stock Levels
342 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66501
  • 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=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
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-24, Insert Length=10.9 mm | 0.430 in

KLI-66123

Price Range
$2.08 - $2.08

Stock Levels
20 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66123
  • Maximum Internal Thread Size
    5/16-24
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    0.430 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/8-11, Insert Length=22.1 mm | 0.870 in

KLI-65908

Price Range
$9.12 - $9.12

Stock Levels
72 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65908
  • Maximum Internal Thread Size
    5/8-11
  • Maximum External Thread Size
    7/8-14
  • Insert Length
    0.870 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-65934

Price Range
$22.24 - $22.24

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65934
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    1/2-13
  • Insert Length
    0.37 in
Key locking Thread Insert; , Maximum Internal Thread Size=3/4-16, Insert Length=28.4 mm | 1.120 in

KLI-66109

Price Range
$4.73 - $4.73

Stock Levels
7 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66109
  • Maximum Internal Thread Size
    3/4-16
  • Maximum External Thread Size
    1-1/8-12
  • Insert Length
    1.120 in
Key locking Thread Insert; , Maximum Internal Thread Size=M14 x 1.5, Insert Length=20.0 mm | 0.787 in

KLI-66170

Price Range
$14.17 - $14.17

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66170
  • Maximum Internal Thread Size
    M14 x 1.5
  • Maximum External Thread Size
    M20 x 1.5
  • Insert Length
    0.787 in
Key locking Thread Insert; , Maximum Internal Thread Size=#8-32, Insert Length=7.9 mm | 0.310 in

KLI-65900

Price Range
$1.57 - $1.57

Stock Levels
151 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65900
  • Maximum Internal Thread Size
    #8-32
  • Maximum External Thread Size
    5/16-18
  • Insert Length
    0.310 in
Key locking Thread Insert; , Maximum Internal Thread Size=7/8-9, Insert Length=31.8 mm | 1.250 in

KLI-65910

Price Range
$13.17 - $13.17

Stock Levels
40 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65910
  • Maximum Internal Thread Size
    7/8-9
  • Maximum External Thread Size
    1-1/4-12
  • Insert Length
    1.250 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-18, Insert Length=10.9 mm | 0.430 in

KLI-65923

Price Range
$3.40 - $3.40

Stock Levels
276 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65923
  • Maximum Internal Thread Size
    5/16-18
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    0.430 in
Key locking Thread Insert; , Maximum Internal Thread Size=5/8-11, Insert Length=22.1 mm | 0.870 in

KLI-65940

Price Range
$21.27 - $21.27

Stock Levels
15 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65940
  • Maximum Internal Thread Size
    5/8-11
  • Maximum External Thread Size
    1-12
  • Insert Length
    0.870 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
182 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=1/4-20, Insert Length=9.4 mm | 0.37 in

KLI-66302

Price Range
$7.20 - $7.20

Stock Levels
36 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66302
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    0.37 in
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in

KLI-66336

Price Range
$18.89 - $18.89

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66336
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    5/8-11
  • Insert Length
    0.500 in