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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
$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
$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
$16.80 - $16.80 10 In stock
0.310 in
#6-32
Reid Select
$2.80 - $2.80 30 In stock
0.620 in
7/16-20
Reid Select
$2.07 - $2.07 83 In stock
0.472 in
M8 x 1
Reid Select
$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
$2.39 - $2.39 43 In stock
0.310 in
#10-24
Reid Select
$3.12 - $3.12 71 In stock
0.37 in
1/4-20
Reid Select
$3.05 - $3.05 13 In stock
0.310 in
#10-24
Reid Select
$14.30 - $14.30 Request the lead time here
0.500 in
3/8-16
Reid Select
$9.12 - $9.12 70 In stock
0.870 in
5/8-11
Reid Select
$5.01 - $5.01 51 In stock
0.560 in
7/16-14
Reid Select
$3.12 - $3.12 Request the lead time here
0.37 in
1/4-28
Reid Select
$2.80 - $2.80 5 In stock
0.560 in
7/16-20
Reid Select
  • of 3
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=#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=#6-32, Insert Length=7.9 mm | 0.310 in

KLI-65931

Price Range
$16.80 - $16.80

Stock Levels
10 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65931
  • Maximum Internal Thread Size
    #6-32
  • Maximum External Thread Size
    5/16-18
  • Insert Length
    0.310 in
Key locking Thread Insert; , Maximum Internal Thread Size=7/16-20, Insert Length=15.7 mm | 0.620 in

KLI-66105

Price Range
$2.80 - $2.80

Stock Levels
30 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66105
  • 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=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=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=#10-24, Insert Length=7.9 mm | 0.310 in

KLI-65901

Price Range
$2.39 - $2.39

Stock Levels
43 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65901
  • 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=1/4-20, Insert Length=9.4 mm | 0.37 in

KLI-65902

Price Range
$3.12 - $3.12

Stock Levels
71 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65902
  • 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=#10-24, Insert Length=7.9 mm | 0.310 in

KLI-65921

Price Range
$3.05 - $3.05

Stock Levels
13 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65921
  • Maximum Internal Thread Size
    #10-24
  • Maximum External Thread Size
    5/16-18
  • Insert Length
    0.310 in
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in

KLI-65936

Price Range
$14.30 - $14.30

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65936
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    5/8-11
  • Insert Length
    0.500 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
70 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=7/16-14, Insert Length=14.2 mm | 0.560 in

KLI-65925

Price Range
$5.01 - $5.01

Stock Levels
51 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65925
  • Maximum Internal Thread Size
    7/16-14
  • Maximum External Thread Size
    9/16-12
  • Insert Length
    0.560 in
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-28, Insert Length=9.4 mm | 0.37 in

KLI-66102

Price Range
$3.12 - $3.12

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66102
  • Maximum Internal Thread Size
    1/4-28
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    0.37 in
Key locking Thread Insert; , Maximum Internal Thread Size=7/16-20, Insert Length=14.2 mm | 0.560 in

KLI-66125

Price Range
$2.80 - $2.80

Stock Levels
5 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66125
  • Maximum Internal Thread Size
    7/16-20
  • Maximum External Thread Size
    9/16-12
  • Insert Length
    0.560 in