Lock Nut 11 Series

Frequently Asked Questions

Q: What are the specifications of the CA SSS-1/2-13 lock nut?
A: The CA SSS-1/2-13 is a lock nut for 11 series cart equipment. The designation indicates 1/2 inch thread diameter with 13 threads per inch (TPI). The lock nut prevents vibration-induced loosening of wheel axles and fasteners.

Q: What equipment does the CA SSS-1/2-13 fit?
A: The CA SSS-1/2-13 is designed for 11 series shopping cart assemblies. Verify thread size and pitch match your equipment before ordering to ensure proper fitment.

Q: What is the purpose of a lock nut versus a standard nut?
A: Lock nuts have a nylon insert or deformed thread that creates friction and resistance to rotation, preventing self-loosening from vibration and movement. Standard nuts can back off under vibration and may cause wheel misalignment or separation.

Q: How often should lock nuts be replaced on cart equipment?
A: Inspect lock nuts monthly for tightness and signs of backing off. Replace nylon-insert lock nuts annually or if the insert is damaged or degraded. Metal lock nuts can be reused if threads are undamaged.

Q: Can the CA SSS-1/2-13 be used as a replacement for standard nuts on wheel axles?
A: Yes, lock nuts are drop-in replacements for standard nuts on the same thread size. However, verify that all fasteners on your equipment use 1/2-13 thread specification before ordering. Mixing thread sizes will cause fitment problems.