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
Brand All
Maximum Internal Thread Size All
Show more Show less
Insert Length All
Show more Show less
58 results
Product SKUs information
Item Code Price range Availability Insert Length Minimum Internal Thread Size Special Offer Maximum Internal Thread Size Brand View
$9.76 - $9.76 226 In stock
0.500 in
3/8-16
Reid Select
$3.92 - $3.92 84 In stock
0.37 in
1/4-20
Reid Select
$1.67 - $1.67 35 In stock
0.310 in
#8-32
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
$14.30 - $14.30 Request the lead time here
0.500 in
3/8-16
Reid Select
$3.12 - $3.12 96 In stock
0.37 in
1/4-20
Reid Select
$2.80 - $2.80 5 In stock
0.560 in
7/16-20
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
$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
$22.24 - $22.24 Request the lead time here
0.37 in
1/4-20
Reid Select
$8.29 - $8.29 62 In stock
0.430 in
5/16-18
Reid Select
$16.20 - $16.20 419 In stock
0.500 in
3/8-16
Reid Select
$5.21 - $5.21 9 In stock
0.500 in
3/8-16
Reid Select
$27.87 - $27.87 Request the lead time here
1.120 in
3/4-16
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=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-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=#8-32, Insert Length=7.9 mm | 0.310 in

KLI-66300

Price Range
$1.67 - $1.67

Stock Levels
35 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66300
  • 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=7/16-14, 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=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=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=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=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=#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=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=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=3/8-16, Insert Length=12.7 mm | 0.500 in

KLI-71304

Price Range
$16.20 - $16.20

Stock Levels
419 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=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=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=5/8-11, 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