
Castle NutsManufacturer & supplier in Chennai, Tamil Nadu, India
Castle (slotted) nuts locked with a split pin for axles, steering and suspension.
Also called: Castellated nuts, Slotted nuts
Available in
- Mild steel
- High tensile steel
- Stainless steel
Finishes
- Plain
- Zinc plated
- Plain stainless
Used in
About Castle Nuts
Castle nuts have slots cut across the top. After tightening, a split pin passes through a hole in the bolt and between the slots, which positively locks the nut so it cannot turn off.
We supply castle nuts in regular and thin heights in steel, high tensile and stainless steel, with matching split pins.
Buy Castle Nuts in Chennai
Anwar Fasteners supplies castle nuts from Thambu Chetty Street, George Town, Chennai, in small packs and bulk quantities, with dispatch the same day inside Chennai and by transport or courier across Tamil Nadu and India. Non-standard castle nuts are manufactured to drawing.
Features
- Positive locking with a split pin
- Regular and thin heights
- Matching split pins supplied
Applications
- Wheel hubs and axles
- Steering and suspension joints
- Trailer and farm linkages
Industries: Automotive, Agriculture, Railways
Need Castle Nuts in a Specific Size?
Tell us the size, specification and quantity you need. We confirm stock, price and delivery for Chennai, Tamil Nadu or anywhere in India.
- Any size, length and thread
- Mild steel, high tensile, stainless steel and galvanized
- Standard parts and specials made to drawing
- Small packs to bulk project quantities
Castle Nuts FAQs
Why use a castle nut instead of a nylock nut?
A castle nut with a split pin cannot come off even if the joint loosens, which is why it is used on safety-critical axles and steering.
Used With Castle Nuts

Rivets, Pins & Circlips
Split Pins
Split (cotter) pins that lock castle nuts, clevis pins and shafts, in mild steel, stainless steel and brass.
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