Double Slotted Opposite
- Most versatile, reliable all-metal self-locking nut for wide-ranging industrial use.
- Low prevailing torque for easier assembly and consistent repeatability.
- Reusable—designed to pass ISO 2320 reuse cycles (1st turn/1st & 5th removal).
- Unaffected by chemicals or temperature—no polymer insert to degrade.
- Threads available: ISO coarse, UNF, UNC, BA, BSF, BSW.
- Size range: 4 mm–48 mm, 6BA–2" (program dependent).
- Opposite slot layout distributes deformation evenly; smooth engagement onto the male thread.
Select Your Material

Class 8
- Material Grade: Steel Class 8 (ISO 898-2).
- Finish: Zinc & Yellow (RoHS). Optional Cadmium/Nickel on request.

Stainless A2
- Material Grade: A2-70 (ISO 3506-2).
- Finish: Electro-polished + wax coat for consistent torque.

Stainless A4
- Material Grade: A4-80, AISI 316L (ISO 3506-2).
- Finish: Electro-polished + wax coat for clean, repeatable assembly.
Benefits (Opposite)
- Versatile self-locking performance for demanding environments.
- Resistant to chemicals and temperature extremes.
- Wide choice of materials/finishes to match your spec.
- Low prevailing torque and reusable; smooth engagement thanks to opposite slot geometry.
Fast
- On-time delivery to your requested date.
- Rapid responses and technical matching to drawings/specs.
- 20+ years of application experience.
- Global delivery capability.
Definition
- Double Slotted Opposite is an all-metal prevailing-torque locknut.
- Engineered for efficient production in many variants and small batches.
- Self-locking: reduce assembly time by replacing two-part solutions.