

CoilSert Tangless locking Inch UNC Coarse #10-24 × 1-1/2D
CoilSert screw-locking wire thread insert, inch UNC coarse 10 (.190)-24, length 1-1/2D, precision-wound from 304 stainless steel diamond-section wire; the coil expands elastically to anchor itself after installation—no staking required. Provides continuous self-locking torque and resists vibration loosening. Volume pricing is negotiable.
| Part No. | T3585-3C285 |
|---|---|
| Features | Self-locking, anti-loosening |
| Thread Size | 10 (.190)-24 |
| Thread System | Inch UNC coarse |
| Length | 1-1/2D |
| Material | 304 stainless steel |
| Finish | Plain (cadmium / silver / dry-film lubricant optional) |
Overview
A tangless CoilSert is a wire thread insert with no driving tang, installed and removed with a mandrel that engages the coil's internal profile. The absence of a tang removes two long-standing problems: there is no tang to break off inside the hole, and no tang fragment to retrieve from a closed cavity after installation. This listing: thread 10 (.190)-24, thread system Inch UNC coarse, length 1-1/2D, material 304 stainless steel, finish Plain (cadmium.
What sets this listing apart: Features Self-locking, anti-loosening.
Advantages
Installation needs no tang-breaking step, shortening cycle time and removing the inspection step that checks whether the tang actually broke cleanly.
The coil geometry is otherwise identical to a standard insert, so tensile and torque performance match the equivalent tanged size.
No tang means no foreign-object risk, which is the reason tangless inserts are specified for fuel, hydraulic and clean-circuit assemblies where a loose stainless fragment would cause a downstream failure.
Removal uses the same mandrel that installed the insert, so a damaged thread can be serviced without drilling out a coil, which is destructive in a blind hole.
Applications
Fuel and hydraulic manifolds, closed cavities where a broken tang cannot be retrieved, clean-room and medical device assemblies, and blind holes where a loose tang would be trapped.
Tangless inserts require the correct mandrel and cannot be installed with a standard tanged tool. Verify the tooling is available before specifying tangless for a repair kit that may be used in the field.
Product information is supplied by Toprecision. Custom parts can be produced to drawing — contact us for samples or a quotation.
Specifications across this series
48 parts in this series
Values are taken from each part’s own attribute set. Changing length, material or finish changes pull-out strength and installation torque, so compare the row that matches your drawing.
Selection and test data: engagement length, standards, salt-spray hours
FAQ
What are the key dimensions of this part?
Part No. T3585-3C285, Features Self-locking, anti-loosening, Thread Size 10 (.190)-24, Thread System Inch UNC coarse.
What material and finish is it supplied in?
304 stainless steel; Plain (cadmium / silver / dry-film lubricant optional).
What should I verify before ordering or installing it?
Tangless inserts require the correct mandrel and cannot be installed with a standard tanged tool. Verify the tooling is available before specifying tangless for a repair kit that may be used in the field.