C-Sert
C-Sert Industrial Thread Repair – Guaranteed
Fix It Once. Fix It Right.
C-Sert: The Only Thread Repair Guaranteed to Never Fail
to Never
Strip-out
to Never
Back-out
to Never
Pull-out
Don’t waste time redoing thread repairs with inserts that fail under stress.
C-Sert thread repair inserts deliver permanent, high-strength repairs in just minutes.
Chosen by Pros in No-Room-for-Error Industries
Professionals in mission-critical industries count on C-Sert for reliable, permanent thread repair:
- Mission-critical thread repairs—made easy
- Permanent steel-to-steel bond that never backs out
- Installs faster than helicoils, with zero guesswork
Why Professionals Choose C-Sert Thread Repair Inserts:
OC-Serts are Built for Pros Who Know Time Is the Real Expense
- Temporary Fixes Create Repeat Failures
Cheap thread inserts loosen, strip, and fail again—costing time and credibility. - Low-Grade Inserts Waste Valuable Hours
Fussy setups, misalignment, and repeated callbacks drain productivity. - One Bad Thread Can Shut Down a Production Line
Downtime from failed repairs means major revenue loss. - Nobody Remembers a Cheap Fix—Only the Failure
When failure isn’t an option, real thread repair starts with C-Sert.
Fast, Foolproof Installation
Step 1:
Drill out the damaged hole
Step 2:
Use a hex driver to screw in the C-Sert
Step 3:
Reinstall your bolt and get back to production—permanently
What Makes C-Sert Thread Repair Inserts So Easy and Reliable:
Self-Tapping Design
C-Serts function as precision taps, cutting their own threads during installation, eliminating the need for pre-tapping.
Self-Aligning Installation
An integral pilot ensures that C-Serts align automatically with the hole axis, promoting straight and accurate placement.
Durable S-7 Tool Steel Construction
Manufactured from through-hardened S-7 tool steel, C-Serts offer exceptional hardness and toughness, resisting wear and deformation.
Left-Handed External Threads
The left-hand thread design prevents the insert from backing out when bolts are removed, enhancing retention under stress.
ACME Thread Profile
Featuring a robust ACME thread profile, C-Serts provide a strong interference fit, reducing the risk of pull-out under heavy loads.
Chip Relief and Flutes
Incorporated chip reliefs and flutes facilitate efficient chip removal during installation, reducing torque requirements and installation time.
Built-In Thread-Chasing Die
C-Serts include a built-in die feature that helps clean and restore damaged or defective bolt threads during installation.
Versatile Sizing Options
Available in a range of inch (1/4″–1 3/4″) and metric (M6–M42) sizes, C-Serts accommodate various repair needs across industries.
Lifetime Warranty
Backed by a lifetime warranty covering failures due to pull-out, back-out, and thread wear, ensuring long-term reliability.
