Menu Search

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.

Request a quote

For large volumes and customised products, add to your cart and click request a quote, orcontact usand we will respond within 2 working days.

Filter or Search Variants

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

Imperial
Metric
Hide Show Filters
76 results
Product SKUs information
Item Code Price range Availability Insert Length Minimum Internal Thread Size Special Offer Maximum Internal Thread Size Brand View
$5.29 - $5.29 55 In stock
0.310 in
#10-32
Reid Select
$16.20 - $16.20 541 In stock
0.500 in
3/8-16
Reid Select
$3.12 - $3.12 96 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
$2.17 - $2.17 18 In stock
0.620 in
1/2-20
Reid Select
$2.39 - $2.39 50 In stock
0.310 in
#10-24
Reid Select
$16.80 - $16.80 20 In stock
0.310 in
#6-32
Reid Select
$14.30 - $14.30 Request the lead time here
0.500 in
3/8-16
Reid Select
$4.73 - $4.73 7 In stock
1.120 in
3/4-16
Reid Select
$2.07 - $2.07 83 In stock
0.472 in
M8 x 1
Reid Select
$14.66 - $14.66 Request the lead time here
7/16-14
Reid Select
$8.33 - $8.33 Request the lead time here
0.620 in
1/2-13
Reid Select
$27.87 - $27.87 Request the lead time here
1.120 in
3/4-16
Reid Select
$9.32 - $9.32 Request the lead time here
5/16-18
Reid Select
$6.14 - $6.14 Request the lead time here
1/4-28
Reid Select
$3.82 - $3.82 205 In stock
0.500 in
3/8-16
Reid Select
$3.12 - $3.12 Request the lead time here
0.37 in
1/4-20
Reid Select
$22.98 - $22.98 Request the lead time here
5/8-11
Reid Select
$17.78 - $17.78 Request the lead time here
1/2-13
Reid Select
$18.89 - $18.89 Request the lead time here
0.500 in
3/8-16
Reid Select
  • of 4
Key locking Thread Insert; , Maximum Internal Thread Size=#10-32, Insert Length=7.9 mm | 0.310 in

KLI-66521

Price Range
$5.29 - $5.29

Stock Levels
55 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66521
  • Maximum Internal Thread Size
    #10-32
  • 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-71304

Price Range
$16.20 - $16.20

Stock Levels
541 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69304
  • 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-65902

Price Range
$3.12 - $3.12

Stock Levels
96 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=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=1/2-20, Insert Length=15.7 mm | 0.620 in

KLI-66126

Price Range
$2.17 - $2.17

Stock Levels
18 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66126
  • Maximum Internal Thread Size
    1/2-20
  • Maximum External Thread Size
    5/8-11
  • Insert Length
    0.620 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
50 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=#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=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=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=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=7/16-14, Insert Length=15.7 mm | 0.620 in, KLI-66305

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
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=15.7 mm | 0.620 in

KLI-66326

Price Range
$8.33 - $8.33

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66326
  • 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=3/4-16, Insert Length=28.4 mm | 1.120 in

KLI-66509

Price Range
$27.87 - $27.87

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66509
  • 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=5/16-18, Insert Length=10.9 mm | 0.430 in, KLI-71303

KLI-71303

Price Range
$9.32 - $9.32

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69303
  • Maximum Internal Thread Size
    5/16-18
  • Maximum External Thread Size
    1/2-13
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-28, Insert Length=9.4 mm | 0.37 in, KLI-71522

KLI-71522

Price Range
$6.14 - $6.14

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69522
  • Maximum Internal Thread Size
    1/4-28
  • Maximum External Thread Size
    3/8-16
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in

KLI-65904

Price Range
$3.82 - $3.82

Stock Levels
205 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65904
  • 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-65922

Price Range
$3.12 - $3.12

Stock Levels
Request the lead time here
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=5/8-11, Insert Length=22.1 mm | 0.870 in, KLI-66308

KLI-66308

Price Range
$22.98 - $22.98

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66308
  • Maximum Internal Thread Size
    5/8-11
  • Maximum External Thread Size
    7/8-14
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=15.7 mm | 0.620 in, KLI-66306

KLI-66306

Price Range
$17.78 - $17.78

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66306
  • Maximum Internal Thread Size
    1/2-13
  • Maximum External Thread Size
    3/4-16
  • Type
    Keylocking Thread Inserts
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