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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
$16.80 - $16.80 20 In stock
0.310 in
#6-32
Reid Select
$14.66 - $14.66 Request the lead time here
0.620 in
7/16-20
Reid Select
$6.37 - $6.37 Request the lead time here
0.430 in
5/16-24
Reid Select
$9.21 - $9.21 Request the lead time here
0.500 in
3/8-24
Reid Select
$2.39 - $2.39 43 In stock
0.310 in
#10-24
Reid Select
$34.24 - $34.24 44 In stock
1.370 in
1-8
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
$9.76 - $9.76 226 In stock
0.500 in
3/8-16
Reid Select
$5.73 - $5.73 51 In stock
0.37 in
1/4-20
Reid Select
$3.92 - $3.92 84 In stock
0.37 in
1/4-20
Reid Select
$4.73 - $4.73 7 In stock
1.120 in
3/4-16
Reid Select
$3.05 - $3.05 33 In stock
0.310 in
#10-24
Reid Select
$9.12 - $9.12 Request the lead time here
0.430 in
5/16-24
Reid Select
$5.21 - $5.21 9 In stock
0.500 in
3/8-16
Reid Select
$1.57 - $1.57 151 In stock
0.310 in
#8-32
Reid Select
$9.12 - $9.12 72 In stock
0.870 in
5/8-11
Reid Select
  • of 3
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
20 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-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=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=3/8-24, Insert Length=12.7 mm | 0.500 in

KLI-66524

Price Range
$9.21 - $9.21

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66524
  • 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=#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=1-8, 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=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
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in

KLI-66304

Price Range
$9.76 - $9.76

Stock Levels
226 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66304
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    9/16-12
  • Insert Length
    0.500 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=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=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=#10-24, Insert Length=7.9 mm | 0.310 in

KLI-65921

Price Range
$3.05 - $3.05

Stock Levels
33 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=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=3/8-16, Insert Length=12.7 mm | 0.500 in

KLI-66324

Price Range
$5.21 - $5.21

Stock Levels
9 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66324
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    1/2-13
  • Insert Length
    0.500 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=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