HSRF MJ Thread Self-Locking Nuts in Stock
Looking for MJ-thread nuts without long lead times? Our Horizontal Slotted Ring Flange (HSRF) Auto-Lok nuts are available from stock in common aerospace sizes, designed for reusable all-metal prevailing torque.
HSRF nut with aerospace MJ internal thread profile.
Why choose an HSRF MJ nut?
- Flange helps distribute load and can support stable seating
- All-metal locking for repeated installation/removal
- Designed for drawings calling out MJ internal threads and typical tolerances (4H6H / 4H5H)
HSRF MJ nuts available from stock
| Auto-Lok nut | Thread (MJ) |
|---|---|
| ALNhsrfMJ5x080A2 | MJ5 × 0,8 — 4H6H |
| ALNhsrfMJ6x100A2 | MJ6 × 1,0 — 4H5H |
| ALNhsrfMJ8x100A2 | MJ8 × 1,0 — 4H5H |
| ALNhsrfMJ10x125A2 | MJ10 × 1,25 — 4H5H |
| ALNhsrfMJ12x125A2 | MJ12 × 1,5 — 4H5H |
| ALNhsrfMJ14x150A2 | MJ14 × 1,5 — 4H5H |
| ALNhsrfMJ16x150A2 | MJ16 × 1,5 — 4H5H |
| ALNhsrfMJ20x150A2 | MJ20 × 1,5 — 4H5H |
FAQ
What does “HSRF” mean?
HSRF refers to a Horizontal Slotted Ring Flange style nut. The flange helps distribute load, while the design maintains a reusable all-metal prevailing torque locking function.
Which MJ sizes are typically available from stock?
Common stock sizes include MJ2 through MJ10. If your size isn’t listed, contact us and we’ll confirm options.
Can I use HSRF MJ nuts on standard metric M threads?
If the drawing requires MJ threads, use MJ internal with MJ external. Avoid mixing MJ and standard metric M unless explicitly approved by the specification.
Fast selection help
Send your required MJ size and tolerance class (4H6H / 4H5H) and we’ll confirm stock and alternatives.