Helical inserts are the ideal option for creating high-strength threads in soft alloys like aluminum in CNC machined or CNC turned parts.
Helical inserts are either tang-less or contain a tang, which is a small piece of metal that's used to
apply the torque required to insert the helical insert.
ProtoSpace Mfg stocks a variety of tanged helical inserts. Tangless options can be ordered for additional leadtime and cost.
Free running helical inserts have a thread that is smooth and free running.
Locking helical inserts have the same characteristics as free running, but also allow frequent removal and reassembly
of screws without appreciable loss of torque and positively secure threaded members against vibration or shock loosening.
We stock both short and long heat-set inserts. If you require another type or thread size insert, contact us to discuss your options with our non-stock request system.
| Thread Size | Insert Length | Free Running or Self Locking | Part Number | Material |
|---|---|---|---|---|
2-56 | 0.129 | Free Running | 1185-02CN129 | 304 Stainless Steel |
2-56 | 0.172 | Free Running | 1185-02CN172 | 304 Stainless Steel |
2-56 | 0.215 | Free Running | 1185-02CN215 | 304 Stainless Steel |
2-56 | 0.129 | Self Locking | 3585-02CN129 | 304 Stainless Steel |
2-56 | 0.215 | Self Locking | 3585-02CN215 | 304 Stainless Steel |
4-40 | 0.168 | Free Running | 1185-04CN168 | 304 Stainless Steel |
4-40 | 0.28 | Free Running | 1185-04CN280 | 304 Stainless Steel |
4-40 | 0.168 | Self Locking | 3585-04CN168 | 304 Stainless Steel |
4-40 | 0.28 | Self Locking | 3585-04CN280 | 304 Stainless Steel |
6-32 | 0.207 | Free Running | 1185-06CN207 | 304 Stainless Steel |
6-32 | 0.345 | Free Running | 1185-06CN345 | 304 Stainless Steel |
6-32 | 0.207 | Self Locking | 3585-06CN207 | 304 Stainless Steel |
6-32 | 0.345 | Self Locking | 3585-06CN345 | 304 Stainless Steel |
8-32 | 0.246 | Free Running | 1185-2CN246 | 304 Stainless Steel |
8-32 | 0.41 | Free Running | 1185-2CN410 | 304 Stainless Steel |
8-32 | 0.246 | Self Locking | 3585-2CN246 | 304 Stainless Steel |
8-32 | 0.41 | Self Locking | 3585-2CN410 | 304 Stainless Steel |
| Thread Size | Insert Length | Free Running or Self Locking | Part Number | Material |
|---|---|---|---|---|
M2.5x0.45 | 3.8 | Free Running | 1084-2.5CN038 | 304 Stainless Steel |
M2.5x0.45 | 6.3 | Free Running | 1084-2.5CN063 | 304 Stainless Steel |
M2.5x0.45 | 3.8 | Self Locking | 4184-2.5CN038 | 304 Stainless Steel |
M2.5x0.45 | 6.3 | Self Locking | 4184-2.5CN063 | 304 Stainless Steel |
M3x0.5 | 4.5 | Free Running | 1084-3CN045 | 304 Stainless Steel |
M3x0.5 | 6 | Free Running | 1084-3CN060 | 304 Stainless Steel |
M3x0.5 | 4.5 | Self Locking | 4184-3CN045 | 304 Stainless Steel |
M3x0.5 | 6 | Self Locking | 4184-3CN060 | 304 Stainless Steel |
M4x0.7 | 6 | Free Running | 1084-4CN060 | 304 Stainless Steel |
M4x0.7 | 10 | Free Running | 1084-4CN100 | 304 Stainless Steel |
M4x0.7 | 6 | Self Locking | 4184-4CN060 | 304 Stainless Steel |
M5x0.8 | 7.5 | Free Running | 1084-5CN075 | 304 Stainless Steel |
M5x0.8 | 7.5 | Self Locking | 4184-5CN075 | 304 Stainless Steel |
M6x1.0 | 9 | Free Running | 1084-6CN090 | 304 Stainless Steel |
M6x1.0 | 9 | Self Locking | 4184-6CN090 | 304 Stainless Steel |
We believe the onboarding process should be as simple and hassle-free as possible.
Our team can process all of your paperwork to get the ball rolling in order to serve your custom manufacturing needs.