Make cast threads
stronger than the casting.
Castings are designed once and produced by the million - which makes thread quality, repair and conversion economics central to your cost model, not an afterthought at rework.
The casting survives - the thread is the weak point
Soft aluminum and magnesium threads strip under assembly torque or repeated service, and porosity turns small defects into line-stopping repairs. Wire-thread inserts and threaded bushings change the equation: the steel insert carries the load, the cast thread only holds the insert - so the joint outlasts the housing, and a stripped hole becomes a two-minute repair instead of a scrapped casting.
- Wire-thread inserts, M2-M20, stainless wire - cast threads stronger than the casting
- Threaded bushings for high-wear, high-cycle threaded interfaces
- On-line repair kits that save castings at the bench or the line
- Standard conversion inserts - fit UNC, UNF and other threads into ISO tapped holes
Threads in cast metal
Powertrain & structural castings
Insert-reinforced threads at joints that see repeated assembly and vibration.
Housings & enclosures
Bushings that keep frequently serviced threads from wearing out the housing.
Casting salvage & rework
Repair inserts and kits that turn porosity and stripping into minutes of bench work.
The fasteners this sector asks for most
Thread inserts & bushings
The core family for cast-alloy threads - strength, repair and conversion.
View familyAluminum alloy bolts
Fasteners matched to the casting substrate - no galvanic surprises.
View familyDie-casting fastening questions we hear most
In most cases, yes - that is exactly what repair inserts exist for. The hole is re-tapped oversize, an insert restores the original thread in a stronger steel form, and the casting goes back down the line instead of into the scrap bin.
Yes. The insert carries the load regardless of substrate, which is precisely why the technique suits soft alloys: the cast material only needs to hold the insert, not the screw.
Standard-conversion inserts adapt UNC, UNF and other threads into ISO-tapped holes, so one casting line serves multiple markets without redesign.
Threads stripping on a million-piece casting program?
Send the casting, thread spec and failure mode - we will propose the insert type, size and installation method, and quote the repair economics.
