Product guide

E-Z LOK EZ-M200 Thread Insert Assortment Kit, 33 Pieces

Pieces: E-Z LOK EZ-M200 is a 33-piece assortment of metric threaded inserts for metal thread repair and reinforcement. The listing describes installation with standard tools after drilling and tapping, and the size range covers several internal thread sizes. Confirm the exact assortment and material before ordering because listing details are inconsistent.

At a glance

Intended for repairing damaged threads or reinforcing tapped holes in metal, with soft metals such as aluminum, cast iron and magnesium named as suitable applications.
Installation instructions describe drilling, tapping and turning in the insert with a screwdriver, bolt and jam nut, or E-Z LOK drive tool.
The listing identifies four internal thread sizes, from M8-1.25 through M16-2.0.

Price

$90.90Save 15%

Reference price: ~~$106.99~~

Price checked: Nov 14, 2026

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Often bought together

E-Z LOK Thread Insert, 0.3125-18 Internal, 0.5-13 External, 10 ct | 12L14 Carbon Steel construction, Designed for metal repair applications, 0.484 in overall length

$13.38

Drill America 1/4"-20 UNC High Speed Steel Tap Set

$12.15

Pros and cons

Pros

An assortment spanning four stated metric internal thread sizes can cover more than one repair size.
The described installation uses standard drilling and tapping steps and lists several ways to turn in an insert.

Technical specifications

20 specifications

Identity
Brand	E-Z LOK
Model	EZ-M200
Number of pieces	33

Thread details
Thread type	Metric
Inside thread sizes	M8-1.25, M10-0.5, M12-1.75, M16-2.0
Thread style	Right Hand
Thread coverage	Fully Threaded
Thread class	Class 6H
Listed thread size	M10
Fastener type	Jam
Screw head style	Slotted

Materials and finish
Material listed	Alloy Steel
Exterior finish	Plain
Color	Black
Finish types	Phosphate

Dimensions and installation
Dimensions listed	8 x 4 x 2 inches
Weight listed	1.4 pounds
Compatible groove diameter	16 millimeters
Drive style	Manual
Grade rating	industrial

What to know before buying

Listing details to confirm

Listing details are inconsistent about material: the technical details say Alloy Steel, while a highlight says Carbon Steel. Thread sizing also varies between M10-0.5 in the inside-thread list and M10-.5 in the size name, while the title states M10-2.0 as the upper endpoint but the detailed size list gives M16-2.0. Verify the actual assortment and thread pitches before ordering. The listed 16 millimeters refers to groove and outside diameter, but its applicability across the assortment is unconfirmed. Installation requires a correctly drilled and tapped hole, and an E-Z LOK drive tool is described as an option rather than a confirmed included item.

Who is it for?

A good fit for

Repairing damaged metric threads in metal where one of the stated insert sizes fits.
Reinforcing tapped holes in soft metals such as aluminum, cast iron or magnesium.

Less suited to

Buyers who need a verified, consistent material specification or a clearly confirmed M10 thread pitch.
Anyone expecting the listing to confirm that drills, taps or a dedicated drive tool are included.

Customer reviews on Amazon

3.6 / 5 · 2 ratings

5 stars0%0%
4 stars56%56%
3 stars44%44%
2 stars0%0%
1 star0%0%

Only a very small aggregate rating sample is supplied, with ratings shown in the middle range rather than strongly positive or negative. That is too limited to identify customer-perceived strengths or problems. Buyers should give more weight to verifying the assortment and material details, which directly affect whether the inserts suit a particular repair.

Frequently asked questions

What thread sizes does the listing specify?

It lists M8-1.25, M10-0.5, M12-1.75 and M16-2.0 as inside thread sizes. The title and other size text do not fully agree, so confirm the assortment and pitches before purchase.

What is this kit intended to do?

The listing describes using the inserts to repair damaged threads or reinforce tapped holes in metal, including soft metals such as aluminum, cast iron and magnesium.

Does the kit include an installation tool?

The listing says an insert can be turned in with a screwdriver, bolt and jam nut, or an E-Z LOK drive tool. It does not confirm that a drive tool is included.