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Ten zinc-plated steel lock nuts in a pack

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 09235 Lock Nut 10 Pack

SKU CH-WE79-D3JA4

Low-profile jam nuts lock against standard nuts to prevent loosening, supplied in a pack of 10

  • Product typeNuts
  • Pack of 10 lock nuts for multiple assemblies
  • Low-profile jam nut design fits tight spaces
  • Zinc-plated steel resists corrosion in harsh conditions
  • Jams against standard nut to prevent loosening
  • Direct-from-manufacturer supply ensures consistent quality

What it is and who it is for

This pack supplies ten 1"-8 steel lock nuts with a zinc-plated finish. They serve as jam nuts that sit half the height of a standard nut and lock against a full-size nut to prevent loosening. Mechanics and fabricators working on heavy equipment, truck suspensions or structural steel will find the quantity convenient for recurring jobs.

When to choose these over standard nuts

Use them when a full-height nut cannot fit or when a secondary locking nut is required to secure a primary fastener. The low-profile design allows installation in tight clearances where a regular nut would interfere with adjacent components. The jump is worth it whenever vibration or thermal cycling risks backing off a single nut.

What to verify before ordering

Confirm the mating bolt or stud uses 1"-8 thread pitch and that the application tolerates a zinc-plated steel finish. Ensure the reduced nut height still provides sufficient thread engagement for the load involved. Check that the ten-piece quantity matches the project requirement so additional packs are not needed.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 63% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameMIDWEST FASTENER
Product typeNuts

Questions about this item

What thread size do these 1"-8 lock nuts fit?

They match a 1"-8 thread pitch, so they spin onto any bolt or stud with that exact diameter and thread count.

How do I install the jam nut so it actually locks?

Run the standard nut on first, torque it to spec, then spin this jam nut down against it and tighten — the two nuts jam together to resist vibration.

Will the zinc plating hold up outdoors or do I need to replace them?

The zinc coating resists rust in normal conditions; inspect periodically and swap any that show white corrosion or damaged threads.

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