Nuts
DIN 935 Castle Nuts
DIN 935 castle nuts feature slots for cotter pin locking, providing a secure mechanical fastening solution for vibration-sensitive and safety-critical assemblies. SENOTECH supplies metric slotted and castle nuts in carbon steel and stainless steel for automotive, machinery and industrial applications.
Specifications
- Standard
- DIN 935 / DIN 935-1
- Product Name
- Castle Nuts
- Product Type
- Castle Nut / Slotted Hex Nut
- Material
- Carbon Steel, Stainless Steel
- Surface Finish
- Zinc Plated, Black Oxide, Plain
- Application
- Automotive, Machinery, Axles, Agricultural Equipment, Industrial Assemblies
- Customization
- Available
Slots machined into the upper section allow the nut to be mechanically secured with a cotter pin through a drilled bolt or shaft. This positive locking method helps prevent unintended rotation and provides a visible, reliable locking arrangement for critical threaded connections.
SENOTECH supplies DIN 935 castle nuts and slotted nuts for automotive components, machinery, agricultural equipment, industrial assemblies and fastener distributors.
International buyers commonly search for these products as castle nuts, castellated nuts, slotted hex nuts, cotter pin nuts and metric castle nuts, so the page naturally covers these major purchasing terms.
Cotter Pin Locking System
After the nut reaches the required installation position, a slot is aligned with the hole in the mating bolt or shaft and secured using a cotter pin.
This mechanical locking arrangement is particularly valuable where accidental loosening could affect equipment reliability or safety.
Typical applications include:
- Automotive suspension and steering
- Axles and wheel assemblies
- Agricultural machinery
- Heavy equipment
- Mechanical linkages
- Industrial machinery
- Shafts and rotating assemblies
- Safety-critical fastening
Metric Coarse & Fine Threads
DIN 935-1 covers hexagon slotted and castle nuts with metric coarse and fine pitch threads, with nominal thread diameters from M4 through M100.
This broad size range makes the standard suitable for both conventional machinery and larger industrial equipment.
Materials & Finishes
Available supply options include:
- Carbon Steel
- Stainless Steel 304 / A2
- Stainless Steel 316 / A4
- Zinc Plated
- Hot Dip Galvanized
- Black
- Plain
- Customized Coatings
Material, property class and finish can be selected according to the mating fastener and service environment.
Bulk & OEM Supply
SENOTECH supplies castle nuts in bulk for fastener distributors, machinery manufacturers and OEM buyers.
Different metric sizes, fine threads, materials, property classes, coatings and packaging can be supplied according to technical drawings or purchasing specifications.
