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 Screw Lock Tanged Screw Locking Inserts contain one or more coils that have a series of straight segments. Upon entry of the bolt these straight segments are flexed outwardly, creating pressure on the bolt. This pressure is applied between the flanks of the bolt thread so that contact area is maximized. Locking inserts are manufactured to meet the locking torque requirements specified in NASM8846. NASM8846 requires the inserts to pass a 15 cycle torque test.
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 to produce coil thread inserts resists corrosion under normal environmental conditions. Galvanic action within the thread assembly is reduced, further adding to the life of the fastening assembly. These Inserts are typically 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. Helical inserts are available in Bulk and on Strip Feed Reels.
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLF-04C-0112Y Kato TLF Tanged CoilThread Inserts Kato TLF-04C-0112Y Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Cadmium Plated
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLF-04C-0112Y | MPN: TLF-04C-0112Y
MS: MS21209-F0410P
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-TLF-04C-0112Y | MPN: TLF-04C-0112Y
MS: MS21209-F0410P
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 TLF-04C-0112Y Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Cadmium Plated
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLF-04C-0112W Kato TLF Tanged CoilThread Inserts Kato TLF-04C-0112W Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLF-04C-0112W | MPN: TLF-04C-0112W
MS: MS21209-F0410L
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-TLF-04C-0112W | MPN: TLF-04C-0112W
MS: MS21209-F0410L
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 TLF-04C-0112W Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 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.
TLF-04C-0112WSF Kato TLF Tanged CoilThread Inserts Kato TLF-04C-0112WSF Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Strip-Feed
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLF-04C-0112WSF | MPN: TLF-04C-0112WSF
MS: MS21209-F0410LS
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-TLF-04C-0112WSF | MPN: TLF-04C-0112WSF
MS: MS21209-F0410LS
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 TLF-04C-0112WSF Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 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.
TLF-04C-0112 Kato TLF Tanged CoilThread Inserts Kato TLF-04C-0112 Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Red Dye Coating
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLF-04C-0112 | MPN: TLF-04C-0112
MS: MS21209-F0410
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-TLF-04C-0112 | MPN: TLF-04C-0112
MS: MS21209-F0410
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 TLF-04C-0112 Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Red Dye Coating
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLF-04C-0112SF Kato TLF Tanged CoilThread Inserts Kato TLF-04C-0112SF Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Strip-Feed, Red Dye Coating
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLF-04C-0112SF | MPN: TLF-04C-0112SF
MS: MS21209-F0410S
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-TLF-04C-0112SF | MPN: TLF-04C-0112SF
MS: MS21209-F0410S
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 TLF-04C-0112SF Tanged Screw-Locking Coil Threaded Insert, Helical, #4-48 UNF, 1D/0.112 Inch Length, 304 Stainless Steel, Strip-Feed, Red Dye Coating
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLC-05C-0125Y Kato TLC Tanged CoilThread Inserts Kato TLC-05C-0125Y Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Cadmium Plated
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-05C-0125Y | MPN: TLC-05C-0125Y
MS: MS21209-CO510P
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-TLC-05C-0125Y | MPN: TLC-05C-0125Y
MS: MS21209-CO510P
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 TLC-05C-0125Y Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Cadmium Plated
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLC-05C-0125W Kato TLC Tanged CoilThread Inserts Kato TLC-05C-0125W Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-05C-0125W | MPN: TLC-05C-0125W
MS: MS21209-CO510L
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-TLC-05C-0125W | MPN: TLC-05C-0125W
MS: MS21209-CO510L
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 TLC-05C-0125W Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 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.
TLC-05C-0125WSF Kato TLC Tanged CoilThread Inserts Kato TLC-05C-0125WSF Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Strip-Feed
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-05C-0125WSF | MPN: TLC-05C-0125WSF
MS: MS21209-CO510LS
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-TLC-05C-0125WSF | MPN: TLC-05C-0125WSF
MS: MS21209-CO510LS
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 TLC-05C-0125WSF Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 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.
TLC-05C-0125 Kato TLC Tanged CoilThread Inserts Kato TLC-05C-0125 Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Red Dye Coating
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-05C-0125 | MPN: TLC-05C-0125
MS: MS21209-CO510
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-TLC-05C-0125 | MPN: TLC-05C-0125
MS: MS21209-CO510
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 TLC-05C-0125 Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Red Dye Coating
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLC-05C-0125SF Kato TLC Tanged CoilThread Inserts Kato TLC-05C-0125SF Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Strip-Feed, Red Dye Coating
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-05C-0125SF | MPN: TLC-05C-0125SF
MS: MS21209-CO510S
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-TLC-05C-0125SF | MPN: TLC-05C-0125SF
MS: MS21209-CO510S
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 TLC-05C-0125SF Tanged Screw-Locking Coil Threaded Insert, Helical, #5-40 UNC, 1D/0.125 Inch Length, 304 Stainless Steel, Strip-Feed, Red Dye Coating
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLC-06C-0138Y Kato TLC Tanged CoilThread Inserts Kato TLC-06C-0138Y Tanged Screw-Locking Coil Threaded Insert, Helical, #6-32 UNC, 1D/0.138 Inch Length, 304 Stainless Steel, Cadmium Plated
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-06C-0138Y | MPN: TLC-06C-0138Y
MS: MS21209-CO610P
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-TLC-06C-0138Y | MPN: TLC-06C-0138Y
MS: MS21209-CO610P
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 TLC-06C-0138Y Tanged Screw-Locking Coil Threaded Insert, Helical, #6-32 UNC, 1D/0.138 Inch Length, 304 Stainless Steel, Cadmium Plated
We are sorry! The quantity you requested is not currently available with us. Please visit the
Product Page to backorder this item.
TLC-06C-0138W Kato TLC Tanged CoilThread Inserts Kato TLC-06C-0138W Tanged Screw-Locking Coil Threaded Insert, Helical, #6-32 UNC, 1D/0.138 Inch Length, 304 Stainless Steel
Minimum Order Qty : 1 | Qty Interval : N/A
BSPN: BA-TLC-06C-0138W | MPN: TLC-06C-0138W
MS: MS21209-CO610L
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-TLC-06C-0138W | MPN: TLC-06C-0138W
MS: MS21209-CO610L
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 TLC-06C-0138W Tanged Screw-Locking Coil Threaded Insert, Helical, #6-32 UNC, 1D/0.138 Inch Length, 304 Stainless Steel
Related Articles: Tanged Screw Lock
6 Recommendations for Vibration Resistant Fasteners
August 14, 2023 | By Mike Eichinger | Helical Inserts, Threaded Inserts, Blind Bolts, Lockbolts
Traditional fasteners loosen under vibration. No matter how hard you tighten them, nuts and bolts will loosen with time if they are subjected to regular shaking.
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.
Shop By
Refine By Stock Status Backorder
Nominal Length 1d
Shopping Options