Identify the driving feature
The tang provides the contact surface for the installation tool.
TANGED WIRE INSERT
Tanged Wire Inserts
An established approach to thread reinforcement.
The tang transfers torque to drive the insert into the installation hole. Plan both tang break-off and recovery as separate process steps.
DESIGNED FOR CONNECTION
Drive the tang. Position the thread.
A tanged wire insert has a transverse installation tang at one end. The tool uses it to drive the insert into the hole; it is then broken off and recovered as specified. For thread repair, assess damage and remaining wall thickness before planning drilling and tapping.
Reinforcement and repair
Suitable for new-thread reinforcement and for assessing repairs to damaged threads.
Inspect each stage
Use separate checkpoints for tapping, installation, tang break-off and recovery.
01 / STRUCTURE
Start with the right structure.
The insert structure determines how tanged wire inserts connect and install.
Standard type
Tanged structure; remove the installation tang after fitting as specified.
Locking type
For connections requiring screw locking.
Custom type
Confirm thread size, engagement length and installation conditions.
Related product:Explore the related product →
02 / MATERIAL
Match the material to the conditions.
These material options are discussion points; not every model is available in every combination.
304H / 316 / 316L
Stainless steel options. Select with regard to the environment, mating screw and corrosion requirements.
1Cr18Ni9Ti
A stainless steel option; confirm the grade and applicable material standard.
Nitronic 60
An option to discuss where resistance to galling is required.
Inconel X-750
A nickel-alloy option to discuss for high-temperature conditions.
Titanium alloy / phosphor bronze
Discuss weight, media and electrochemical compatibility.
Custom materials
Provide operating temperature, loads and material specifications.
03 / SURFACE
The finish is part of the connection.
Consider friction, corrosion resistance and identification in the operating environment. Confirm available combinations with an engineer.
Dry-film lubricant
An option for controlling friction and assembly consistency.
Silver plating
Consider high-temperature operation and mating-thread compatibility.
Passivation
A surface-treatment option for stainless steel; not equivalent to nickel plating.
Xylan coating
Confirm friction, corrosion and temperature requirements for the selected coating system.
Color identification
Helps identify models or batches; not a substitute for material documentation.
Cadmium plating / custom treatment
Confirm separately for the environment, applicable standards and supply requirements.
INSTALLATION
From preparation to final inspection.
Prepare the hole before installing the insert. These seven steps show a through-hole installation, including tang break-off, recovery and inspection.
Compare tangless installation →Tanged Wire InsertsInstall → Recover tang → Inspect
Cutting tools, gauges and installation mandrels are shown separately
The gray section represents the parent material and hole
Tanged installations require separate tang recovery
STEP 01Drill the through-hole
Select the drilling diameter for the thread and parent material, then drill through the workpiece. Check rear clearance and remove chips and burrs at both ends.
Steps 01–07 use a through-hole example.- STEP 02
Prepare the entry
Chamfer and deburr the entry as specified, then inspect the through-hole exit to keep both installation and tang-recovery paths clear.
Chamfer requirements depend on the selected insert system and drawing. - STEP 03
Tap the installation thread
Use a matching STI tap to produce the installation thread. Cutting or forming must be compatible with the parent material and insert system.
A conventional screw tap of the same nominal size is not a substitute. - STEP 04
Clean and gauge
Clean the hole and use a matching STI gauge to check the installation thread. If coating or treatment follows, reassess its dimensional effects.
This checks the installation hole before the insert is fitted. - STEP 05
Install using the tang
Use the matching tool to drive the tang and install to the specified depth. Avoid cross-threading, excessive compression and premature tang breakage.
Set the depth according to the drawing, entry geometry and tool depth stop. - STEP 06
Break off, recover and inspect
Ensure sufficient downward travel for the break-off tool. Break the tang as instructed, recover it through the hole exit and verify recovery.
Through-holes provide space for tool travel and tang removal; confirm rear access is available. 
STEP 07Complete the inspection
Inspect depth, insert condition and both ends of the through-hole. Confirm no tang or chips remain and record tang recovery. Complete fit or locking checks as specified.
Follow the locking insert's acceptance procedure; do not force a standard GO gauge through a locking coil.
Check tang break-off clearance first. Through-holes help provide tool travel and a recovery path. Insufficient bottom clearance in a blind hole may prevent break-off or trap the tang. Assess hole depth, tooling and recovery separately.
Tool shapes are process illustrations. Images are not to scale and do not replace tool drawings or process documents. Hole preparation, chamfer, installation depth and acceptance requirements must follow approved drawings and tool instructions.
The illustration highlights the tang. The actual break-off method, tool and depth must follow the approved procedure.
CONFIGURATION
Bring your requirements to our engineers.
Choose a preferred configuration and add thread size and operating conditions. This is an engineering enquiry, not a confirmed supply configuration.
Confirm these details for a clearer discussion.
Repair clearance
Remaining wall thickness, edge distance and the extent of thread damage.
Insert length
Effective engagement length and safe bottom clearance.
Tang recovery
Blind holes and enclosed cavities need a practical inspection method.
Tool combination
STI taps, installation tools and tang break-off tools.
KNOWLEDGE & RESOURCES
Explore further.
Frequently asked questions
Why does tang recovery matter in a blind hole?
A broken tang can remain at the bottom of a hole or enter an adjacent cavity. Define recovery and inspection methods before assembly.
Does fitting an insert mean a repair is acceptable?
The approved repair plan must also verify installed position, surrounding parent material and screw engagement.