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
58 results
Product SKUs information
Item Code Price range Availability Insert Length Minimum Internal Thread Size Special Offer Maximum Internal Thread Size Brand View
$8.33 - $8.33 Request the lead time here
1/2-13
Reid Select
$9.76 - $9.76 Request the lead time here
3/8-24
Reid Select
$5.29 - $5.29 55 In stock
#10-32
Reid Select
$16.20 - $16.20 819 In stock
3/8-16
Reid Select
$3.12 - $3.12 101 In stock
1/4-20
Reid Select
$9.12 - $9.12 66 In stock
5/8-11
Reid Select
$3.05 - $3.05 243 In stock
#10-24
Reid Select
$5.01 - $5.01 51 In stock
7/16-14
Reid Select
$14.30 - $14.30 8 In stock
3/8-16
Reid Select
$3.12 - $3.12 184 In stock
1/4-20
Reid Select
$5.80 - $5.80 115 In stock
1/2-13
Reid Select
$17.33 - $17.33 Request the lead time here
1/2-13
Reid Select
$0.86 - $0.86 23 In stock
5/16-24
Reid Select
$3.12 - $3.12 36 In stock
1/4-28
Reid Select
$2.17 - $2.17 8 In stock
1/2-20
Reid Select
$3.87 - $3.87 13 In stock
#10-24
Reid Select
$5.29 - $5.29 57 In stock
#10-24
Reid Select
$1.57 - $1.57 171 In stock
#8-32
Reid Select
$3.82 - $3.82 154 In stock
3/8-16
Reid Select
$13.17 - $13.17 40 In stock
7/8-9
Reid Select
  • of 3
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=15.7 mm | 0.620 in, 66326

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
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-24, Insert Length=12.7 mm | 0.500 in, 66504

KLI-66504

Price Range
$9.76 - $9.76

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66504
  • Maximum Internal Thread Size
    3/8-24
  • Maximum External Thread Size
    9/16-12
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=#10-32, Insert Length=7.9 mm | 0.310 in, 66521

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
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in, 69304

KLI-71304

Price Range
$16.20 - $16.20

Stock Levels
819 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69304
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    9/16-12
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-20, Insert Length=9.4 mm | 0.37 in, 65902

KLI-65902

Price Range
$3.12 - $3.12

Stock Levels
101 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65902
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    7/16-14
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=5/8-11, Insert Length=22.1 mm | 0.870 in, 65908

KLI-65908

Price Range
$9.12 - $9.12

Stock Levels
66 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65908
  • 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=#10-24, Insert Length=7.9 mm | 0.310 in, 65921

KLI-65921

Price Range
$3.05 - $3.05

Stock Levels
243 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65921
  • Maximum Internal Thread Size
    #10-24
  • Maximum External Thread Size
    5/16-18
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=7/16-14, Insert Length=14.2 mm | 0.560 in, 65925

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
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in, 65936

KLI-65936

Price Range
$14.30 - $14.30

Stock Levels
8 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65936
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    5/8-11
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-20, Insert Length=9.4 mm | 0.37 in, 65922

KLI-65922

Price Range
$3.12 - $3.12

Stock Levels
184 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65922
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    3/8-16
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=15.7 mm | 0.620 in, 65926

KLI-65926

Price Range
$5.80 - $5.80

Stock Levels
115 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65926
  • Maximum Internal Thread Size
    1/2-13
  • Maximum External Thread Size
    5/8-11
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=17.3 mm | 0.68 in, 65938

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
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-24, Insert Length=10.9 mm | 0.430 in, 66103

KLI-66103

Price Range
$0.86 - $0.86

Stock Levels
23 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66103
  • Maximum Internal Thread Size
    5/16-24
  • 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, 66122

KLI-66122

Price Range
$3.12 - $3.12

Stock Levels
36 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66122
  • 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=1/2-20, Insert Length=15.7 mm | 0.620 in, 66126

KLI-66126

Price Range
$2.17 - $2.17

Stock Levels
8 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66126
  • Maximum Internal Thread Size
    1/2-20
  • Maximum External Thread Size
    5/8-11
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=#10-24, Insert Length=7.9 mm | 0.310 in, 66301

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
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=#10-24, Insert Length=7.9 mm | 0.310 in, 66321

KLI-66321

Price Range
$5.29 - $5.29

Stock Levels
57 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66321
  • Maximum Internal Thread Size
    #10-24
  • Maximum External Thread Size
    5/16-18
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=#8-32, Insert Length=7.9 mm | 0.310 in, 65900

KLI-65900

Price Range
$1.57 - $1.57

Stock Levels
171 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65900
  • Maximum Internal Thread Size
    #8-32
  • Maximum External Thread Size
    5/16-18
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=3/8-16, Insert Length=12.7 mm | 0.500 in, 65904

KLI-65904

Price Range
$3.82 - $3.82

Stock Levels
154 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    65904
  • Maximum Internal Thread Size
    3/8-16
  • Maximum External Thread Size
    9/16-12
  • Type
    Keylocking Thread Inserts
Key locking Thread Insert; , Maximum Internal Thread Size=7/8-9, Insert Length=31.8 mm | 1.250 in, 65910

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
  • Type
    Keylocking Thread Inserts