The store will not work correctly in the case when cookies are disabled.
JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.
Tanged Free Running Tanged Free Running Helical Inserts are extremely flexible fasteners. The resilient characteristics of each coil in a helical Insert allows it to adjust independently to secure the maximum surface contact with individual threads in the parent material. As a result, loads are distributed more evenly. Stress and fatigue concentrations are reduced to maximize thread strength and increase the reliability and life of the fastening system.
The stainless steel used resists corrosion under normal environmental conditions. Galvanic action within the thread assembly is reduced, further adding to the life of the fastening assembly. Typically, these Inserts are used with temperatures from -320F degrees to +800F degrees (-195.6C to +426.7C).
Precision engineering, exacting manufacturing standards, and stringent quality control procedures assure a high quality product that meets or exceeds all applicable military and aerospace standards.
A complete range of free-running sizes are available in bulk or strip feed reels and are offered in both Unified and metric sizes.
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNF-03C-0297SF Kato TNF Tanged CoilThread Inserts Kato TNF-03C-0297SF Tanged Free-Running Coil Threaded Insert, Helical, #3-56 UNF, 3D/0.297 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNF-03C-0297SF | MPN: TNF-03C-0297SF
MS: MS124830S
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNF-03C-0297SF | MPN: TNF-03C-0297SF
MS: MS124830S
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNF-03C-0297SF Tanged Free-Running Coil Threaded Insert, Helical, #3-56 UNF, 3D/0.297 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0168 Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0168 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1.5D/0.168 Inch Length, 304 Stainless Steel
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0168 | MPN: TNC-04C-0168
MS: MS122116
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0168 | MPN: TNC-04C-0168
MS: MS122116
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0168 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1.5D/0.168 Inch Length, 304 Stainless Steel
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0168SF Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0168SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1.5D/0.168 Inch Length, 304 Stainless Steel, Strip-Feed
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0168SF | MPN: TNC-04C-0168SF
MS: MS122116S
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0168SF | MPN: TNC-04C-0168SF
MS: MS122116S
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0168SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1.5D/0.168 Inch Length, 304 Stainless Steel, Strip-Feed
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0112 Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0112 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1D/0.112 Inch Length, 304 Stainless Steel, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0112 | MPN: TNC-04C-0112
MS: MS122076
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0112 | MPN: TNC-04C-0112
MS: MS122076
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0112 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1D/0.112 Inch Length, 304 Stainless Steel, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0112SF Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0112SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1D/0.112 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0112SF | MPN: TNC-04C-0112SF
MS: MS122076S
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0112SF | MPN: TNC-04C-0112SF
MS: MS122076S
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0112SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 1D/0.112 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0280 Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0280 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2.5D/0.280 Inch Length, 304 Stainless Steel, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0280 | MPN: TNC-04C-0280
MS: MS122196
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0280 | MPN: TNC-04C-0280
MS: MS122196
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0280 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2.5D/0.280 Inch Length, 304 Stainless Steel, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0280SF Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0280SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2.5D/0.280 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0280SF | MPN: TNC-04C-0280SF
MS: MS122196S
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0280SF | MPN: TNC-04C-0280SF
MS: MS122196S
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0280SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2.5D/0.280 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0224 Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0224 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2D/0.224 Inch Length, 304 Stainless Steel, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0224 | MPN: TNC-04C-0224
MS: MS122156
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0224 | MPN: TNC-04C-0224
MS: MS122156
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0224 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2D/0.224 Inch Length, 304 Stainless Steel, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0224SF Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0224SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2D/0.224 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0224SF | MPN: TNC-04C-0224SF
MS: MS122156S
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0224SF | MPN: TNC-04C-0224SF
MS: MS122156S
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0224SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 2D/0.224 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0336 Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0336 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 3D/0.336 Inch Length, 304 Stainless Steel, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0336 | MPN: TNC-04C-0336
MS: MS122236
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0336 | MPN: TNC-04C-0336
MS: MS122236
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0336 Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 3D/0.336 Inch Length, 304 Stainless Steel, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNC-04C-0336SF Kato TNC Tanged CoilThread Inserts Kato TNC-04C-0336SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 3D/0.336 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNC-04C-0336SF | MPN: TNC-04C-0336SF
MS: MS122236S
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNC-04C-0336SF | MPN: TNC-04C-0336SF
MS: MS122236S
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNC-04C-0336SF Tanged Free-Running Coil Threaded Insert, Helical, #4-40 UNC, 3D/0.336 Inch Length, 304 Stainless Steel, Strip-Feed, Plain, Silver
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TNF-04C-0168 Kato TNF Tanged CoilThread Inserts Kato TNF-04C-0168 Tanged Free-Running Coil Threaded Insert, Helical, #4-48 UNF, 1.5D/0.168 Inch Length, 304 Stainless Steel, Plain, Silver
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TNF-04C-0168 | MPN: TNF-04C-0168
MS: MS124711
Offers Available
Price: Request a Quote | Your Net Price: Request a Quote
Available Qty: -
Minimum Order Qty : 1
Qty Interval: 1
Add to My Quote List
Add to My Quote List
BSPN: BA-TNF-04C-0168 | MPN: TNF-04C-0168
MS: MS124711
Offers Available
Price: Request a Quote
Your Net Price: Request a Quote
Avg Lead Time For Backorders: Nil
Backorder Available Date: Nil
Available Qty: -
Kato TNF-04C-0168 Tanged Free-Running Coil Threaded Insert, Helical, #4-48 UNF, 1.5D/0.168 Inch Length, 304 Stainless Steel, Plain, Silver
Related Articles: Tanged Free Running
All About Helical Insert Applications
April 10, 2021 | By Mike Eichinger | Helical Inserts
Stripped threads can be a nightmare, especially when dealing with soft materials such as aluminum, magnesium, or plastic. When you have a stripped fitting where a bolt just won’t hold or needs reinforcement, you need to find a way to make a fastener connection that is strong and worry-free.
Why Coil Thread Inserts Are Unique Among Fasteners
June 18, 2025 | By Mike Eichinger | Fastener Distributor
Threaded fasteners need a solid substrate for lasting performance. The threads must be solidly anchored in the material without loosening or pullout, which can be challenging with softer materials, such as wood and plastics.
What You Need to Know About Coil Thread Inserts
September 12, 2024 | By Mike Eichinger | Threaded Inserts
When you use threaded fasteners, you’re bound to run into situations where the threads are stripped or need reinforcing because the material is too soft. That’s when you need to consider coil thread inserts.
Shop By
Refine By Stock Status Backorder
Stock Status In Stock
Body Finish plain
Shopping Options