
NAS & MS Inserts from KATO
Need Wire Thread Inserts That Meet Military & Aerospace Standards?
Look no further than KATO!
KATO offers a large variety of wire thread inserts that meet Military Standard (MS) and National Aerospace Standard (NAS) specifications. Often referred to as heli-coil (helicoil) or helical inserts, wire thread inserts are formed from coiled wire and provide a cost effective solution for increasing thread strength or repairing damaged threads. KATO manufacturers both tanged and tangless inserts available in free-running (non-locking) and locking configurations.
Product Spotlight: KATO KPH Prewinder Tools
KATO’s prewinder hand tools are designed to install tangless and tanged threaded inserts and are hand operated making them suitable for small production runs. Whether you’re using threaded inserts to repair threads or strengthen parent material prewinder tools are a must for installation.

Product Spotlight: KATO Linear Torque Arm
Introducing the Linear Torque Arm
KATO Fastening Systems recently announced the launch of the all new KATO Linear Torque Arm. The linear torque arm is designed to install tangless or tanged threaded inserts using any KATO electric driver or air tool (with optional air tool kit). The Linear Torque Arm offers an unprecedented smoothness of linear and rotational movements as it absorbs the torque reaction inherent with power installation tools.
Features & Benefits
- Keeps the installation tool perpendicular to the work surface
- Reduces RMI (Repetitive Motion Injury) and CTS (Carpal Tunnel Syndrome) while boosting production
- Prevents cross threading and side load, prolonging the life of installation mandrels
- Maneuvers smoothly as the arm absorbs torque reactions from electric and pneumatic tools
- Torque capacity of 177 in-lbf (20 Nm)
- And more…
the KATO Linear Torque Arm is fully compatible with KATO strip-feed packaged tangless inserts, and KATO prewinder electric tools (2KPE series).
Click to learn more about KATO Linear Torque Arm

Manufacturer Profile: KATO
KATO: Manufacturer of Tangless Inserts
KATO Fastening Systems is a leading manufacturer of threaded inserts known for their invention of the bi-directional tangless threaded insert. Founded in 1997, KATO provides a full line of tanged and tangless inserts, insert tools, hinges, and thread repair kits. KATO manufactures equivalent inserts to HeliCoil and Recoil and can often provide cost savings and shorter lead times compared to their competitors. KATO also produces inserts certified to military specifications.
KATO Mil-Spec Insert Series
- NAS1130
- MS122
- MS124
- MS21209C
- MS21209F
Advantages of KATO Tangless Inserts
Tangless inserts have the same fit, form, and function as tanged inserts but with a couple key advantages. One, tangless inserts reduce the possibility of Foreign Object Debris (FOD) from loose tangs which can cause damage to machinery. This translates into reduced costs for maintenance and repair. Two, tangless inserts are bi-directional which means that no orientation is required when installing inserts. This can speed up assembly providing additional cost savings.
bisco industries – Authorized KATO Distributor
bisco industries is proud to be an authorized KATO Distributor. bisco stocks 1000s of KATO parts and offers online pricing and availability as well as production information. To find KATO stock visit biscoind.com today!

Product Spotlight: KATO Hexatorq Hinges
KATO Hexatorq Hinges set the industry standard for reliable and cost effective motion control. Hexatorq hinges feature an innovative metal and plastic resin hinge design which provides extraordinarily smooth motion as well as unparalleled durability.
Spring Hinges vs. Hexatorq Hinges
Conventional spring hinges tend to lose their lubrication and damage mating parts by seizing up in high temperature environments. In contrast, the Hexatorq design, utilizes modern engineered plastic resin that requires no lubrication. In fact, in an elevated temperature application, KATO Hexatorq Hinges experience a predictable drop-off in torque and then return to preset torque values after a minimal cool down period. This means NO damage to expensive components!
KATO Hexatorq Hinge Features and Benefits
- Designed for at least 30,000 cycles without failure.
- Smooth operation throughout 360° range of motion.
- Holds position throughout the full range of motion, no spring-back.
- Corrosion resistant stainless steel and engineered resin design.
- Light-weight and compact design maximizes space and weight savings.
- Hex configuration provides for easy mold-in mounting without brackets.
- Available with brackets for external mounting.
- No lubrication required! Eliminates the possibility of contamination or corrosion to sensitive parts.
- FOD free design. No metal to metal friction means no foreign object damage from metal particles.
bisco – Authorized Source for KATO Hexatorq Hinges
KATO’s standardized range of Hexatorq sizes and configurations were determined through extensive design and durability testing and meet virtually all common application requirements. If the standard sizes aren’t suitable then bisco and KATO can work to customize a solution for your specific application. Use KATO Hexatorq Hinges and significantly reduce your typical design-to-manufacture time cycle and overall costs. Visit biscoind.com to find Hextorq hinges.

Replacing Metal with Plastic? Here’s a Solution for Weaker Threads
Maintaining Thread Strength in Plastic Parent Material
Today, manufacturers and design engineers are looking for alternative ways to decrease the cost, weight, and size of their parts. As a result, more and more companies are turning to plastic to replace heavier and more costly metal materials. Using plastic not only reduces the weight, but can also lower cost, and provide design flexibility. In fact plastic components manufactured using injection molding can be produced in a fraction of the time it takes to machine the same component from metal.
There are many pros and cons to using plastic as an alternative to metal, however one major drawback is weaker thread strength. This issue can be resolved with a product bisco industires is a franchised distributor for – KATO Tangless® CoilThread® inserts.
KATO CoilThread inserts are a helically-coiled fastener that can provide permanent, wear-resistant screw threads that exceed the strength of plastic parent materials. While made of metal, KATO CoilThread inserts weigh less and require the smallest boss diameter (minimum required material thickness around the insert) for a given size when compared to solid/brass inserts. KATO CoilThread inserts can be installed in any plastic material that can be tapped.
Bonus! Additional Cost Savings
KATO Tangless inserts have a drive notch at each end which eliminates the need for orientation thereby reducing overall installation time. In addition, KATO Tangless CoilThread inserts usually cost less than solid inserts! That means, you can reduce costs both by switching to plastic components and by securing them with KATO Tangless® CoilThread inserts. In fact, customer studies show that using KATO Tangless inserts can save from $0.15 – $0.50 per hole in labor costs.
Already working with plastic materials? bisco carries a large selection of tangless inserts and tools. Visit biscoind.com for more info on all KATO products!

One Pawl Fits All – What’s in your tool?
Do you use KATO® Tangless® CoilThread® inserts or tools? If so, KATO has created a new system to simplify the pawl ordering process, streamline inventory management, and reduce overall costs for nearly all KATO Tangless installation tools.
The One Pawl Fits All™ system allows customers to use one pawl with ANY KATO installation tool of the same size. The pawl is an internal component that engages the drive notch of a KATO Tangless CoilThread insert, installing it into the tapped hole.
Many other manufacturers require users to purchase different pawls for different tools of the same thread size, but not KATO! KATO’s One Pawl Fits All system works with all KATO brand installation tools
- KATO Prewinder Electric Tool
- KATO Prewinder Air Tool
- KATO Prewinder Hand Tool
- KATO Hex Electric Tool
- KATO Round Electric Tool
Here’s how it works… order any size KATO installation pawl (2KIP Series) and use it in any KATO Tangless installation tool of the same size. It’s that simple! Go to biscoind.com/KATO and search 2KIP to see a complete list of KATO pawls.

Save Money with KATO Tangless Inserts!
Why Tangless Inserts = Cost Savings
As technology moves forward, customer expectations and demands for higher quality fasteners is at an all time high. KATO revolutionized the industry with the introduction of the Tangless® screw thread insert, the most advanced helically coiled screw thread insert in the market today.
Tangless® CoilThread® inserts are a continuous, helically-coiled, bi-directional, wire design. This innovative design allows for installation using a drive notch located at each end of the coil insert instead of a tang located at one end of the insert.
Because KATO Tangless inserts have a notch at both ends, this eliminates the need to orient the insert during installation and saves on production cost. But that’s not all…
After installing a tanged insert you have to go back and break off the tang, this process is eliminated with Tangless inserts. In blind holes the tang must be retrieved; this process is also eliminated with Tangless inserts. Tangless inserts are FOD-Free by design, so you never have to worry about contamination by a missed tang.
What It Means for your Bottom Line
The advantages of using KATO Tangless inserts are clear: less overall installation time means lower production costs and equates to money saved. In fact, customer studies show using a KATO Tangless insert can save from $0.15 – $0.50 per hole in labor costs.
Installation isn’t the only area of cost savings. KATO Tangless inserts can save thousands of dollars by eliminating the likelihood of damage to the machined part, and preventing the need to rework or even scrap parts. Having a notch on both ends means KATO Tangless inserts can be backed up (if installed too deep), or removed without any damage to the parent material or STI threads. Try that with a tanged insert!
So, what are you still waiting for? bisco industries carries a large selection of KATO Tangless CoilThread inserts and tools. Isn’t it time YOU go tangless?

KATO Introduces the World’s Smallest Tangless CoilThread Insert
Lighter, Smaller, Stronger – KATO Inserts
Once again, KATO has redefined cutting edge in the helical coiled screw thread insert market. As technology moves forward, the expectations and demands of engineers are to design parts that are smaller, lighter, and more powerful. This holds true for everything from electronics to mechanical components. As a result, and in response to this trend, KATO continues to develop innovative new technology that pushes the envelope of wire insert manufacturing. The New 0-80 and M2 Tangless CoilThread inserts are the latest results of these efforts.
World’s smallest Tangless insert
KATO utilized state-of-the-art wire forming technology and advanced micro manufacturing techniques to produce the 0-80 and M2 Tangless CoilThread inserts, the industry’s smallest unified and metric Tangless thread sizes.
The new 0-80 and M2 Tangless CoilThread inserts are currently available in free-running 1, 1.5, and 2 diameter nominal lengths. STI taps, STI gages, installation, and non-destructive KATO removal tools for the 0-80 and M2 Tangless CoilThread inserts are also available.
With a free outside diameter as small as 0.077in and 2.5mm respectively, the KATO 0-80 and M2 Tangless CoilThread inserts are the world’s smallest unified and metric Tangless inserts!
Receive a quote now
bisco industries is your local authorized stocking distributor for KATO! Check pricing and stock on KATO inserts by visiting www.biscoind.com.

Inserting the Right Solution
The Challenge of Product Design Restrictions
Imagine you’re assembling an enclosure for a cell phone. You need to bind the two pieces of the enclosure together with an extremely strong yet light weight fastener. In addition you face the challenge that the pieces can only be fastened from one side of the enclosure. Engineers working with all kinds of electronic and industrial enclosures face these types of scenarios daily. So what’s the solution to a predicament like this?
The Right Solution
The answer is helical inserts (also known as CoilThread inserts, wire thread inserts, or Heli-Coil inserts). Formed from threaded coils of durable metal wire, helical inserts offer an extremely dependable and light weight fastening solution. Helical inserts’ technical specifications also allow wide variation in size, material, and plating. Not only that, but many CoilThread inserts meet stringent military specifications that make them ideal for aircraft and defense applications.
Determining Your Specific Requirements
Perhaps you’ve determined that you need a tangless insert with a 2-56 thread size but you’re unsure what material would best suit your application. That’s when an expert comes in handy. Having partnerships with premier insert manufacturers such as Kato, bisco industries is able to provide the expertise you need. Contact a local bisco office or email our e-commerce team to get expert advice on helical inserts.