McMaster 90284A400 Key-Locking Insert Assortment with Tool, 18-8 Stainless Steel, 10-24 to 1/2″-13 Thread Sizes

Original price was: $647.84.Current price is: $129.56.

SKU: SK0025276-US20260630-101428 Category: Tag:

These assortments include various sizes of key-locking inserts with thick and thin walls, and an installation tool. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or convert threads in soft metals such as aluminum. They’re comparable to Keensert® inserts.

18-8 stainless steel inserts are more corrosion resistant than black-phosphate steel. They may be mildly magnetic.

Thin-wall inserts are often used in small holes or near the edge of a workpiece.

For Use In

Metal

Threaded Insert Type

Key Locking

Comparable To

Keensert®

Includes

10-24 Thread × 0.313″ Installed Lg. (20 Each)
1/4“-20 Thread × 3/8” Installed Lg. (20 Each)
5/16“-18 Thread × 0.438” Installed Lg. (15 Each)
3/8“-16 Thread × 1/2” Installed Lg. (10 Each)
7/16“-14 Thread × 0.563” Installed Lg. (10 Each)
1/2“-13 Thread × 5/8” Installed Lg. (6 Each)
Installation Tool

Number of Inserts Included

81

Material

18-8 Stainless Steel

Passivation

Passivated

System of Measurement

Inch

Thread Direction

Right Hand

Thread Size

1/2“-13
1/4“-20
10-24
3/8“-16
5/16“-18
7/16“-14

Thread Type

UNC

Thread Spacing

Coarse

Thread Fit

Class 2B

Key-Locking Insert Wall Style

Thin

For Tap
Type

Standard (UN)

Thread Size

5/16“-18
3/8“-16
7/16“-14
1/2“-13
9/16“-12
5/8“-11

Installed Length

0.313″
3/8
0.438″
1/2
0.563″
5/8

For Min. Material Thickness

0.313″
3/8
0.438″
1/2
0.563″
5/8

Drill Bit Size

I
Q
X
29/64
33/64
37/64

For Maximum Hole Diameter

0.272″
0.332″
0.397″
29/64
33/64
37/64

End Type

Open

External Locking Type

Key

Tensile Strength

Not Rated

RoHS

RoHS 3 (2015/863/EU) Compliant

REACH

Not Compliant

DFARS

Not Specialty Metals Compliant

Country of Origin

United States

USMCA Qualifying

No

Schedule B

731819.0000

ECCN

EAR99

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