316 Stainless Steel Two Way Reversible Lock Nuts
What are 316 stainless two way reversible lock nuts? 316 stainless two way reversible lock nuts, also called centerlock nuts, are all-metal lock nuts with indentations on the hex that slightly distort the center threads to resist loosening. Made from marine-grade 316 stainless, they lock from either side, hold at high temperatures, and resist salt and chloride corrosion.
Why choose 316 for a two way lock nut?
316 stainless adds molybdenum for far better resistance to salt and chloride pitting than 18-8, so a 316 two way lock nut is the choice where an all-metal, high-heat locking nut also faces coastal, marine, or wash-down exposure. The indentations distort the center threads for prevailing torque that locks from either side, and being all-metal it keeps working in heat that would soften a nylon insert. Use anti-seize to prevent galling on the tight locking threads.
Why choose 316 stainless two way lock nuts
- Marine-grade corrosion resistance: molybdenum-alloyed for salt and chlorides.
- All-metal locking: no nylon to soften in heat.
- Reversible: locks threaded from either side.
- Reusable: holds locking action over repeated use.
Common applications for 316 two way lock nuts
- Marine and coastal high-vibration hardware
- Wash-down and food-grade equipment
- High-temperature engine-area work
- Boats, docks, and saltwater exposure
For general corrosion resistance at lower cost, see 18-8 stainless two way lock nuts, and browse every material on the main lock nuts category.
316 Stainless Two Way Reversible Lock Nuts FAQ
Why choose 316 over 18-8?
316 adds molybdenum for much better resistance to salt and chloride pitting, making it the choice for coastal, marine, and wash-down use where 18-8 could corrode.
What does reversible mean?
The center-thread distortion lets the nut lock whether threaded top-up or top-down, so there is no wrong side, which speeds installation.
How is this different from a nylon insert lock nut?
It locks with distorted metal threads instead of a nylon collar, so it keeps working at high temperatures that would soften nylon and tolerates more reuse.