// TECHNICAL RESOURCES
MS21209 screw-locking helical-coil inserts.
Identify selected stocked MS21209 tanged screw-locking inserts, compare mating threads and installed-length multiples, and request a quote from Webson.
// PART IDENTIFICATION
A tanged insert with a screw-locking feature
MS21209 identifies corrosion-resistant helical-coil screw-thread inserts with a locking feature. The installation tang and locking construction distinguish this selection from a free-running tangless insert.
// STOCKED SELECTION
Stocked MS21209 part numbers
Selected stocked ordering designations and identification references. Entries marked “Confirm drawing” require configuration review before quotation; full tolerances and acceptance requirements remain controlled by the required specification issue.
No matching entries. Clear the filters or try a shorter search.
| Part number | Mating thread reference | Nominal installed length | Construction / finish | Stock status | Request pricing |
|---|---|---|---|---|---|
| MS21209C510 | Confirm drawing | Confirm drawing | Screw-locking; confirm size code | Stocked item | Quote MS21209C510 → |
| MS21209C0415L | 4-40 UNC | 1.5D | Screw-locking; dry-film lubricated | Stocked item | Quote MS21209C0415L → |
| MS21209C6-10 | 3/8-16 UNC | 1D | Screw-locking; unplated | Stocked item | Quote MS21209C6-10 → |
| MS21209F1-15 | 10-32 UNF | 1.5D | Screw-locking; unplated | Stocked item | Quote MS21209F1-15 → |
| MS21209C0415 | 4-40 UNC | 1.5D | Screw-locking; unplated | Stocked item | Quote MS21209C0415 → |
| MS21209F1-20P | 10-32 UNF | 2D | Screw-locking; cadmium plated | Stocked item | Quote MS21209F1-20P → |
| MS21209C0615 | 6-32 UNC | 1.5D | Screw-locking; unplated | Stocked item | Quote MS21209C0615 → |
| MS21209C0410 | 4-40 UNC | 1D | Screw-locking; unplated | Stocked item | Quote MS21209C0410 → |
| MS21209F1-20 | 10-32 UNF | 2D | Screw-locking; unplated | Stocked item | Quote MS21209F1-20 → |
Stocked items are subject to prior sale. Request a quote to confirm current availability and lead time.
D identifies nominal mating-thread diameter. 1D, 1.5D and 2D describe nominal installed insert length as a multiple of D. They do not specify free-coil length, tapped-hole diameter or installation depth.
// PART-NUMBER REVIEW
Keep size and finish codes intact
MS21209C0415 references a 4-40 coarse thread and 1.5D installed length. MS21209F1-15 references a 10-32 fine thread and 1.5D installed length.
For the selected entries, terminal L identifies dry-film lubricant and P identifies cadmium plating. These are finish identifiers, not changes in the installed-length multiple.
The stock identifier MS21209C510 requires drawing review. Its missing separators or zeroes could change the size interpretation, so a mating thread and length are not assigned here.
// RFQ DETAILS
Specify the insert and installation requirements together
Provide the mating thread, installed length, required locking style and finish. Include the controlling hole-preparation and installation requirements, parent material and any approved-source restrictions.
A mating-thread match does not approve exchanging tanged, tangless, free-running and screw-locking inserts.
// SOURCE WITH WEBSON
Related insert families
Send the complete designation, quantity, required date and documentation requirements to Webson.
// BUYER CHECKLIST
Prepare the requirement for quotation
- Complete designation, including all material, finish and locking suffixes.
- Quantity, required delivery date and controlling drawing or specification issue.
- Required certificates, source restrictions and lot traceability.
// SOURCE WITH WEBSON
Have a part number or bill of material?
Send the complete designation, quantity, required delivery date and documentation requirements. Webson will review your requirement for quotation.