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Screws for Carbide Insert Holders

When it's time to replace the screws in a carbide insert holder, use the reference number on your holder to find the right size.
Lock pin screws hold the insert in place.
For technical drawings and 3-D models, click on a part number.
Lock Pin Screws—Threaded on One End

Lg. | Reference No. | Right-Hand Thread Lg. | Drive Style | Drive Size | Material | Min. Rockwell Hardness | Each | |
8-32 | ||||||||
---|---|---|---|---|---|---|---|---|
0.322" | NL-23 | 0.09" | Hex | 1/16" | Steel | C42 | 000000000 | 00000 |
10-32 | ||||||||
0.347" | NL-33 | 0.109" | Hex × Hex | 5/64" | Steel | C42 | 000000000 | 0000 |
0.41" | NL-33L | 0.109" | Hex × Hex | 5/64" | Steel | C42 | 000000000 | 0000 |
0.425" | NL-43 | 0.109" | Hex × Hex | 5/64" | Steel | C42 | 000000000 | 0000 |
0.452" | NL-34 | 0.109" | Hex × Hex | 5/64" | Steel | C42 | 000000000 | 0000 |
0.513" | NL-34L | 0.109" | Hex × Hex | 5/64" | Steel | C42 | 000000000 | 0000 |
1/4"-28 | ||||||||
0.519" | NL-44 | 0.14" | Hex × Hex | 3/32" | Steel | C42 | 000000000 | 0000 |
0.676" | NL-46 | 0.14" | Hex × Hex | 3/32" | Steel | C42 | 000000000 | 0000 |
0.733" | NL-46L | 0.14" | Hex × Hex | 3/32" | Steel | C42 | 000000000 | 0000 |
3/8"-24 | ||||||||
0.857" | NL-68 | 0.156" | Hex × Hex | 9/64" | Steel | C42 | 000000000 | 00000 |
Parts for Carbide Insert Holders

Parts for M-Code Holders
For technical drawings and 3-D models, click on a part number.
For Holder Code | Reference No. | For Insert Inscribed Circle Diameter (IC) | Each | |
Lock Pin Screw | ||||
---|---|---|---|---|
MCLN | NL-44 | 1/2" | 0000000 | 00000 |
MCLN | NL-58 | 5/8" | 00000000 | 00000 |
MCLN, MCRN, MSDN | NL-68 | 3/4" | 00000000 | 00000 |
MCLN, MDJN, MRGN, MSDN, MTAN, MTGN, MWLN | NL-46 | 1/2" | 00000000 | 00000 |
MSDN | NL-34 | 3/8" | 00000000 | 0000 |
MTAN, MTEN, MTGN, MTJN, MVJN, MVVN | NL-34L | 3/8" | 00000000 | 0000 |