Hard Lock Nut【1-200 Pieces Per Package】

Hard Lock Nut
  • Volume Discount

[Shape] Upper nut (convex type) and lower nut (concave type) are available.
· The top nut is perfectly circular with respect to the bolt, but the bottom nut has been eccentrically machined off-center with respect to the bolt.
[Features] Since the lower nut is eccentric, tightening the upper nut will apply a lateral force due to the wedging action. Friction to this male thread prevents loosening.
· Can be manually tightened to your desired position.
· Can be used repeatedly.

[Material] Steel/S45C/SCM435 (H)
[Surface Processing] Parkerizing (Phosphate Coating) / Trivalent White
[Nominal of Thread (M)] 8/10/12/14/16/18/22/24/30/33/36/39/45/48/52/56/64
[Application/Function] Loosening prevention
[Thread Ridge Type] Metric Coarse
[Loosening Prevention Details] Hard Lock Nut


  • There are some differences in handling compared with what is shown in the standard table. We ask for your understanding in advance.
  • This is a representative image. See the product standards for details.
    * "Other special treatments" under Surface Processing have the following specifications.
    PLB: Parkerizing (Phosphate Coating)

Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

Part Number
Part NumberStandard Unit PriceNumber of pc(s). included in pkg.Volume DiscountShipping Days?RoHSScrew Nominal (M) Material Surface Treatment Sales Unit Surface Treatment (Details)

7.53 €

Available 6 Days 1018-Trivalent ChromateLow Quantity (can be purchased from one)[Trivalent Chromate] Trivalent White

2.99 €

Available 6 Days 1014-ParkerLow Quantity (can be purchased from one)Other special processings

5.48 €

Available 6 Days 1018-ParkerLow Quantity (can be purchased from one)Other special processings

7.47 €

Available 6 Days 1022-ParkerLow Quantity (can be purchased from one)Other special processings


200 Pieces Per Package

11 Days 1014-Trivalent ChromateBox/Package[Trivalent Chromate] Trivalent White

632.98 €

100 Pieces Per Package

12 Days 1018-Trivalent ChromateBox/Package[Trivalent Chromate] Trivalent White


200 Pieces Per Package

15 Days 1014-ParkerBox/PackageOther special processings


100 Pieces Per Package

15 Days 1018-ParkerBox/PackageOther special processings

2.11 €

Available 6 Days 1014[Steel] SteelParkerLow Quantity (can be purchased from one)Other special processings

4.18 €

Available 6 Days 1018[Steel] SteelParkerLow Quantity (can be purchased from one)Other special processings


  1. 1

Basic information

Thread Type Metric Coarse Applications, Functions Stop loosening Locking Details Hard Lock Nut

Additional Products in this Category

Customers Who Viewed This Item Also

Tech Support