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Titanium castle nuts feature slots in the upper section of the nut for use with a cotter pin or similar locking component, helping prevent unintended rotation after installation. Available in standard specifications and custom configurations based on your requirements.
Material — Titanium
Grades — Grade 2 / Grade 5 (Ti-6Al-4V)
Thread — Metric Coarse / Metric Fine / UNC / UNF
Supply — Standard & Custom
Titanium castle nuts are slotted hexagonal nuts designed for use with a cotter pin or similar locking component to help prevent unintended rotation after installation. The slots in the upper section allow the locking component to pass through a corresponding hole in the mating bolt or stud. TitaniumWest supplies standard and custom titanium castle nuts in different grades, thread configurations and dimensions.
Standard products can be supplied according to applicable standards and specifications, while non-standard titanium castle nuts can be manufactured according to customer drawings, samples and technical requirements.
d — Nominal Thread Diameter · P — Thread Pitch · m — Nut Height · w — Castellated Section Height · n — Slot Width · s — Width Across Flats · e — Width Across Corners
| Size (d) | Pitch P (mm) | Nut Height m max. (mm) | Castellated Height w max. (mm) | Slot Width n (mm) | Across Flats s max. (mm) | Across Corners e min. (mm) |
|---|---|---|---|---|---|---|
| M4 | 0.7 | 5.0 | 3.2 | 1.20–1.45 | 7 | 7.66 |
| M5 | 0.8 | 6.0 | 4.0 | 1.40–1.65 | 8 | 8.79 |
| M6 | 1.0 | 7.5 | 5.0 | 2.00–2.25 | 10 | 11.05 |
| M8 | 1.25 | 9.5 | 6.5 | 2.50–2.75 | 13 | 14.38 |
| M10 | 1.5 | 12.0 | 8.0 | 2.80–3.05 | 16 | 17.77 |
| M12 | 1.75 | 15.0 | 10.0 | 3.50–3.80 | 18 | 20.03 |
| M14* | 2.0 | 16.0 | 11.0 | 3.50–3.80 | 21 | 23.35 |
| M16 | 2.0 | 19.0 | 13.0 | 4.50–4.80 | 24 | 26.75 |
| M18* | 2.5 | 21.0 | 15.0 | 4.50–4.80 | 27 | 29.56 |
| M20 | 2.5 | 22.0 | 16.0 | 4.50–4.80 | 30 | 32.95 |
| M22* | 2.5 | 26.0 | 18.0 | 5.50–5.80 | 34 | 37.29 |
| M24 | 3.0 | 27.0 | 19.0 | 5.50–5.80 | 36 | 39.55 |
| M27* | 3.0 | 30.0 | 22.0 | 5.50–5.80 | 41 | 45.20 |
| M30 | 3.5 | 33.0 | 24.0 | 7.00–7.36 | 46 | 50.85 |
| M36 | 4.0 | 38.0 | 29.0 | 7.00–7.36 | 55 | 60.79 |
Dimensional requirements may vary according to the applicable standard, specification or custom drawing.
Grade 2
Grade 5 (Ti-6Al-4V)
Metric Coarse
Metric Fine
UNC
UNF
DIN 935-1:2013-08 — Metric Coarse & Fine Thread
ASME B18.2.2-2022 — Inch Series
Non-standard sizes, slot dimensions, thread configurations and custom castle nut designs can be manufactured according to your requirements.
Thread diameter, nut height, width across flats and other dimensions can be manufactured according to your requirements.
Metric coarse, metric fine, UNC and UNF thread configurations are available.
Standard and non-standard castle nut sizes can be supplied according to your application requirements.
Slot width, castellated section height and other nut features can be customized according to drawings or application requirements.
Natural, polished and anodized finishes are available according to appearance and application requirements.
Non-standard titanium castle nuts can be manufactured according to customer drawings, samples and technical specifications.
Material Traceability
Dimensional Inspection
Material Certificates Available
Inspection Records Available
Send us your required size, titanium grade, quantity or drawing for review.
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