10 best thread locking inserts

Thread locking inserts, often referred to as threaded inserts or helical inserts, are essential components in the field of fasteners and industrial manufacturing. These inserts are used to reinforce and strengthen threads in various materials, such as metal, plastic, or composite materials. They serve several important functions:

Thread Reinforcement: Threaded inserts are often used in situations where the parent material is not strong enough to hold threads securely. By adding an insert, the threads are reinforced, providing a more robust and reliable connection.
Vibration Resistance: One of the primary purposes of thread locking inserts is to resist vibrations and prevent threaded fasteners from loosening over time. This is crucial in industries like automotive and aerospace, where the integrity of connections is critical.
Corrosion Resistance: Some threaded inserts are made from materials like stainless steel or coated with anti-corrosion substances to ensure long-lasting performance, especially in outdoor or corrosive environments.
Heat Resistance: Thread locking inserts can be designed to withstand high temperatures, making them suitable for applications in industries like manufacturing and machinery, where heat resistance is essential.
Easy Repair: In cases where threads are damaged or stripped, threaded inserts can be used to restore functionality without the need for more extensive repairs or replacing the entire component.
Enhanced Load-Bearing Capacity: Threaded inserts can improve the load-bearing capacity of the threaded joint, allowing it to withstand higher forces without failure.

Thread locking inserts come in various shapes, sizes, and designs to accommodate different applications. Some common types include:

Helicoil Inserts: These are coiled wire inserts that are inserted into a pre-drilled hole.When a bolt or screw is threaded into the insert, it provides a strong and reliable connection.
Keenserts or Key-Locking Inserts: These inserts have external threads with keys or serrations that lock into the parent material, providing excellent resistance against vibration and torque.
Tangless Inserts: Tangless inserts, like helicoils, provide thread reinforcement but do not have the tang or tang break-off feature found in traditional helicoil inserts.
Self-Tapping Inserts: These threaded inserts have a self-tapping design, allowing them to be installed directly into a hole without the need for pre-tapping.

Thread locking inserts are commonly used in various industries, including automotive, aerospace, manufacturing, construction, and more. They are a valuable tool for ensuring the reliability and longevity of threaded connections in a wide range of applications.

Below you can find our editor's choice of the best thread locking inserts on the market

Swan Song

Based on 3 reviews Check latest price

Anne Of Green Gables Complete 8 Book Set

Based on 5 reviews Check latest price

Steel Hex Nut, Zinc Plated Finish, Grade 5, Self-Locking Nylon Insert, Right Hand Threads, 3/8"-24 Threads, 0.622" Width Across Flats (Pack of 100)

Continental-Aero

Based on 15 reviews Check latest price

Product description

Hex nut tightens from the side with a wrench, enabling use when there is limited space above the nut
Self-locking nylon insert helps prevent loosening when nut is threaded to another component
Grade 5 steel is often used in applications where strength is the primary concern
Zinc plating resists corrosion and has a reflective appearance

User questions & answers

Question:	i have a small dewalt D55151 2 gallon 150 PSI max compressor. Will this work to peel some old rustic shack and bring it to smooth baby surface
Answer:	No but I do bodywork with mine, it should work for wood and varnish with the correct sandpaper.
Question:	I’m collecting tools to repaint my own truck. Would this be a good sander for preping the body for paint
Answer:	It comes with pas, but through auto-body paint stores, or auto-body shop material suppliers, you can order a hook and loop pad if you wanted to. I did, because the shop I work in only supplies hook and loop paper. My wife bought this for me last Christmas, and it is still working great, I use this often as I am in the auto-body industry.
Question:	I am sanding raw wood as well as between coats of catalyzed conversion varnish on large conference tables. Anyone tried similar with this tool
Answer:	It doesn't have the ability to become a free-standing holder--it must be mounted to the sink using the suction cup.
Question:	Does this come with pas or hook n loop. thanks in adv
Answer:	No, that product simple doesn't work at all!

Product features

Ingersoll Rand 328B Heavy Duty Air Geared Dual Action Orbital Sander - 8-Inch Pad

The smooth strength and power of the dual-action geared air sander lets you remove heavy material and body filler on large, flat surfaces, leaving a clean, swirl-free finish.

About Ingersoll Rand

Ingersoll Rand has stood at the vanguard of industrial innovation for over 100 years. From air compressor systems to power tools and beyond, the company manufactures products that offer best-in-class quality, reliability, durability, and performance. Ingersoll Rand is also deeply committed to building a better future. At every level of business, the company promotes environmentally sound practices to achieve progress that is truly sustainable. With offices and plants across the globe, Ingersoll Rand strives to meet the world’s growing need for clean and comfortable air, safe and fresh food, energy efficiency, and sustainability.

Steel Hex Nut, Zinc Plated Finish, Grade 2, Self-Locking Nylon Insert, Right Hand Threads, 1-1/4"-7 Threads, 2.038" Width Across Flats

Continental-Aero

Based on 8 reviews Check latest price

Product description

Hex nut tightens from the side with a wrench, enabling use when there is limited space above the nut
Self-locking nylon insert helps prevent loosening when nut is threaded to another component
Grade 2 steel is often used in applications where toughness is the primary consideration
Zinc plating resists corrosion and has a reflective appearance

Small Parts-B008A1I3Z0 Steel Machine Screw Hex Nut, Zinc Plated Finish, Grade 2, Self-Locking Nylon Insert, Right Hand Threads, #12-24 Threads, 0.482" Width Across Flats (Pack of 100)

Continental-Aero

Based on 14 reviews Check latest price

Product description

Machine screw hex nut has a flat top with a large bearing surface and chamfered corners
Self-locking nylon insert helps prevent loosening when nut is threaded to another component
Grade 2 steel is often used in applications where toughness is the primary consideration
Zinc plating resists corrosion and has a reflective appearance

Steel Wing Nut, Zinc Plated Finish, Grade 2, Self-Locking Nylon Insert, Right Hand Threads, Class 2B 5/16"-18 Threads (Pack of 10)

Continental-Aero

Based on 17 reviews Check latest price

Product description

Wing nut can be tightened and loosened by hand, without the use of tools
Self-locking nylon insert helps prevent loosening when nut is threaded to another component
Grade 2 steel is often used in applications where toughness is the primary consideration
Zinc plating resists corrosion and has a reflective appearance

Steel Flange Nut, Zinc Yellow-Chromate Plated Finish, Grade 8, Self-Locking Nylon Insert, Right Hand Threads (Pack of 50)

Continental-Aero

Based on 7 reviews Check latest price

Product description

Flanged base eliminates the need for a washer when fastening components
Self-locking nylon insert helps prevent loosening when nut is threaded to another component
Grade 8 steel is stronger than grade 5 steel and often used in applications where strength is the primary concern
Zinc yellow-chromate plating offers good corrosion resistance

User questions & answers

Question:	what is the thread size
Answer:	No, even if the conpressor make the enough psi, the tank is way too small to feed the air tool consumption
Question:	course or fine thread
Answer:	Please see link to description of this product. https://www.ingersollrandproducts.com/en-us/power-tools/products/sanders-polishers-buffers/dual-action-geared-air.html#tab-1-a42f450b-cad5-43cb-a815-8cbd4b8fd14a "The smooth strength and power of the dual-action geared air sander lets you remove heavy material and body filler on large, flat surfaces, leaving a clean, swirl-free finish" If you have further questions please reach out to our tool technical support team at 800-483-4981 option 3 then option 2

E-Z LOK - 453-6 E-Z Lok Externally Threaded Insert, 303 Stainless Steel, M6-1.0 Internal Threads, M10x1.5 External Threads, 10.49mm Length, Made in US (Pack of 5)

E-Z LOK

Based on 116 reviews Check latest price

Product description

E-Z LOK threaded inserts for metal provide an easy to use solution for repairing or reinforcing threaded holes in metal. Ideal for use in metals like aluminum and cast iron, E-Z LOK threaded inserts are screw machined out of solid steel for greater strength and superior pull out resistance. Standard external threads permit the use of standard drills and taps for installation. Once the hole is prepared, E-Z LOKs are threaded into the hole like an ordinary fastener using a screwdriver, bolt and jam nut, or optional E-Z LOK drive tool. E-Z LOKs are self locking and will not back out or vibrate loose. A preapplied adhesive activates upon installation and bonds to virtually all metals. Fastener-ready in minutes, the adhesive seals against liquids and gases to pressures of 6,000 psi. when fully cured (72 hours).

Easy to Use Solution For Repairing Damaged Threads in Metal
Install With Standard Drill & Tap; NO Special Tools Needed
Self Locking; Preapplied Adhesive Activates Upon Installation and is Fastener-Ready in 3-5 Minutes
Corrosion Resistant
Ideal For Soft Metals Like Aluminum, Cast Iron, or Magnesium

User questions & answers

Question:	where on Amazon can I get 5/16"- 18 threaded stainless steel bolts for these
Answer:	Drill the correct size hole for your tap, use the tap to cut threads and thread this into it.
Question:	Why is this more desireable than a helicoil for a metal insert? Or for that matter, just tapping the metal like the video shoes to your desired screw
Answer:	no
Question:	How can you use this product in hard maple
Answer:	5/16 - 18The size for the nuts are under features and details.
Question:	I have Dogs swivel wheel.the opening is a 1 inch the wheel stem is 4 0r 5 inches will this work
Answer:	course

Delisert 20pcs Key Locking Screw Thread Insert Heavy Duty Internal Thread M10X1.5 with high Repair Ability

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Product description

Product Description

Key locking inserts provide high strength and reliability and are designed to provide high resistance to rotation and pullout loads. After installation into the tapped hole, the keysert on each key locking inserts are driven down through the threads of the parent material, locking the insert firmly and permanently in place.

Application

Can be used in virtually any material including aluminum, cast iron, steel, plastics.

Category:

Thinwall;Heavy wall; Extra Heavy Duty;Solid Insert

Materials & Finishes:

Materials : carbon steel, stainless steel

Finishes : cadmium plate, dry film lubricant

As a kind of thread repairing method, the keysert can quickly and effectively repair the damaged thread; key locking screw insert is used on low-strength materials, which can greatly enhance the strength of the threaded hole

Key locking thread insert is a fastener that has the screw both the internal and external wall.It is mainly used in some areas, such as: aircraft,Vibration machinery,Military industry and other industry with high thread strength .

Installation

1.Drill out old threads with a standard drill.Note: Drill is oversized see charts for proper dimensions. Chamfer the hole with a standard countersink(82° -100° )

2.Tap new thread with a standard tap. See charts for proper size and depth.

3.Screw in the insert until slightly below surface.

4.Drive keys down with several hammer taps on the proper installation tool.

Keysert is easy to use and easy to install and operate, the keysert installation tool is no special required.
Key Locking thread insert can effectively repair broken threads.
Keensert is especially suitable for environments requiring high-strength internal threads, which are highly resistant to shock and pull.
KEYSERT is more common than the ordinary stainless steel wire screw sleeve, which can make the thread hole strength more effective.
Positive mechanical lock eliminates wind out in service.

E-Z LOK - 319-5 E-Z Lok Externally Threaded Insert, C12L14 Carbon Steel, Meets AISI 12L14, 5/16"-18 Internal Threads, 7/16"-14 External Threads, 0.437" Length, Made in US (Pack of 10)

E-Z LOK

Based on 25 reviews Check latest price

Product description

Easy to Use Solution For Repairing Damaged Threads in Metal
Install With Standard Drill & Tap; NO Special Tools Needed
Self Locking; Preapplied Adhesive Activates Upon Installation and is Fastener-Ready in 3-5 Minutes
Strong, Solid Construction Design
Ideal For Soft Metals Like Aluminum, Cast Iron, or Magnesium

User questions & answers

Question:	On the pkg that the 5/16-18 e-z lok insterts come in, it says to use a size "x" drill (this if for a 7/16-14 tap hole, but drill should be "u
Answer:	It is a longer lasting thread for use in soft metals. Like clean outs and access panels where you remove the fasteners often.... And if the threads get bad, you can replace this insert in minutes. It has a true thread, a helicoil is not a true standard thread... There is a tool that you can buy to install EZ loc inserts that makes it even easier..... Hope this helps... RJS Eng.