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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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76 results
Product SKUs information
Item Code Price range Availability Insert Length Minimum Internal Thread Size Special Offer Maximum Internal Thread Size Brand View
$2.17 - $2.17 18 In stock
15.7 mm
1/2-20
Reid Select
$1.67 - $1.67 35 In stock
7.9 mm
#8-32
Reid Select
$9.21 - $9.21 Request the lead time here
12.7 mm
3/8-24
Reid Select
$8.40 - $8.40 Request the lead time here
9.4 mm
1/4-20
Reid Select
$3.92 - $3.92 84 In stock
9.4 mm
1/4-20
Reid Select
$8.14 - $8.14 Request the lead time here
7.9 mm
10-24
Reid Select
$17.78 - $17.78 Request the lead time here
15.7 mm
1/2-13
Reid Select
$5.73 - $5.73 36 In stock
9.4 mm
1/4-20
Reid Select
$18.89 - $18.89 Request the lead time here
12.7 mm
3/8-16
Reid Select
$14.66 - $14.66 Request the lead time here
15.7 mm
7/16-20
Reid Select
$5.29 - $5.29 55 In stock
7.9 mm
#10-32
Reid Select
$17.24 - $17.24 Request the lead time here
14.2 mm
7/16-20
Reid Select
$8.14 - $8.14 Request the lead time here
7.9 mm
#10-32
Reid Select
$3.12 - $3.12 96 In stock
9.4 mm
1/4-20
Reid Select
$34.24 - $34.24 44 In stock
34.8 mm
1-8
Reid Select
$22.24 - $22.24 Request the lead time here
9.4 mm
1/4-20
Reid Select
$14.30 - $14.30 Request the lead time here
12.7 mm
3/8-16
Reid Select
$3.05 - $3.05 59 In stock
7.9 mm
#10-32
Reid Select
$4.73 - $4.73 7 In stock
28.4 mm
3/4-16
Reid Select
$2.08 - $2.08 40 In stock
10.9 mm
5/16-24
Reid Select
  • of 4
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
    15.7 mm
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
    7.9 mm
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
    12.7 mm
Key locking Thread Insert; , Maximum Internal Thread Size=1/4-20, Insert Length=9.4 mm | 0.37 in

KLI-71302

Price Range
$8.40 - $8.40

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69302
  • Maximum Internal Thread Size
    1/4-20
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    9.4 mm
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
    9.4 mm
Key locking Thread Insert; , Maximum Internal Thread Size=10-24, Insert Length=7.9 mm | 0.310 in

KLI-71301

Price Range
$8.14 - $8.14

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69301
  • Maximum Internal Thread Size
    10-24
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    7.9 mm
Key locking Thread Insert; , Maximum Internal Thread Size=1/2-13, Insert Length=15.7 mm | 0.620 in

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
  • Insert Length
    15.7 mm
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
36 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
    9.4 mm
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
    12.7 mm
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
    15.7 mm
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
    7.9 mm
Key locking Thread Insert; , Maximum Internal Thread Size=7/16-20, Insert Length=14.2 mm | 0.560 in

KLI-66525

Price Range
$17.24 - $17.24

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66525
  • Maximum Internal Thread Size
    7/16-20
  • Maximum External Thread Size
    9/16-12
  • Insert Length
    14.2 mm
Key locking Thread Insert; , Maximum Internal Thread Size=#10-32, Insert Length=7.9 mm | 0.310 in

KLI-71501

Price Range
$8.14 - $8.14

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    69501
  • Maximum Internal Thread Size
    #10-32
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    7.9 mm
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
    9.4 mm
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
    34.8 mm
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
    9.4 mm
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
    12.7 mm
Key locking Thread Insert; , Maximum Internal Thread Size=#10-32, Insert Length=7.9 mm | 0.310 in

KLI-66101

Price Range
$3.05 - $3.05

Stock Levels
59 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66101
  • Maximum Internal Thread Size
    #10-32
  • Maximum External Thread Size
    3/8-16
  • Insert Length
    7.9 mm
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
    28.4 mm
Key locking Thread Insert; , Maximum Internal Thread Size=5/16-24, Insert Length=10.9 mm | 0.430 in

KLI-66123

Price Range
$2.08 - $2.08

Stock Levels
40 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    66123
  • Maximum Internal Thread Size
    5/16-24
  • Maximum External Thread Size
    7/16-14
  • Insert Length
    10.9 mm