01
3D Printed Parts
Reliable threads in FDM and SLS parts, from prototypes to production fixtures.
Precision threaded hardware · Made in USA
Better threads
start here.
American-made brass heat-set inserts engineered for strong, repeatable threads in thermoplastics.
THREADSM2—M8
MATERIALC360 BRASS
LEAD TIME2—5 DAYS
Made in the United States
Diamond knurl geometry
Small & production quantities
Custom sizes available
The standard line
Grip that
doesn’t give.
Opposing diamond knurls drive polymer into the insert body, resisting both pull-out and torque. A clean lead-in makes every installation fast and predictable.
View sizing chart ↓01Diamond knurlMaximum material engagement
02Internal threadClass 6H / ASME B1.1
03Tapered leadFast, centered installation
C360
FREE-CUTTING BRASS
FREE-CUTTING BRASS
Stock sizes
Ready when
you are.
Our most-requested metric sizes are stocked in California and ready to ship. Imperial and custom geometry available by quote.
ThreadPilot holeLengthOuter Ø
M23.2 mm4.0 mm3.5 mmRequest →M2.53.8 mm5.0 mm4.2 mmRequest →M34.0 mm5.7 mm4.6 mmRequest →M45.6 mm8.1 mm6.3 mmRequest →M56.4 mm9.5 mm7.1 mmRequest →M68.0 mm12.0 mm8.7 mmRequest →Pilot hole dimensions are starting recommendations. Confirm with your material, print settings, and application testing.
Fast pricing · Standard or custom
From specs to
quote. Fast.
Configure a standard insert for an immediate budgetary estimate, or send a drawing for an engineering-reviewed custom quote.
01 No login required02 Drawings stay private03 Prototype to production
Built for your process
One insert.
Thousands of uses.
From a single prototype to a documented production line, we help you choose the geometry and installation window that holds.
02
Injection Molding
Post-mold installation without redesigning tooling or adding molded-in hardware.
03
Electronics
Repeatable fastening for enclosures, faceplates, mounts, and serviceable assemblies.
Install with confidence
Heat. Press.
Hold.
A purpose-built tip, a temperature-controlled iron, and a straight press are all it takes. The surrounding plastic reflows into the knurls and locks the insert in place.
01○
Size the hole
Use our recommended pilot as a starting point.
02♨
Set temperature
Match your tool to the polymer’s softening range.
03↓
Press straight
Apply light, steady pressure without forcing it.
04✓
Cool & assemble
Hold position briefly, then allow the joint to set.
Need help choosing?
Let’s make your
connection stronger.
Tell us your thread size, plastic, and annual quantity. Our team will recommend a stock part or quote a custom insert.
Request a quote ↗[email protected]