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Hard Lock Nut【1-200 Pieces Per Package】

Hard Lock Nut

[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

(i)Caution

  • 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

Configured Part Number is shown.

Features

  • Material: Steel / S45C / SCM435 (H)
  • Surface treatment: Parkerizing (phosphate coating) / Trivalent white
  • Screw Nominal: M8 / M14 / M18 / M22 / M24 / M30 / M33 / M 36 / M39 / M45 / M48 / M52 / M56 / M64
  • Use/function: Loosening prevention
  • Screw thread type: metric coarseness
  • Locking prevention details: Hard lock nut
  • Corresponds to hexagonal width across flats JIS B1181 and screws JIS B0205 and B0207

Dimensions

 

(Unit: mm)

 

Dimensional drawing

SH (Lower Nut)H1 (Upper Nut)B (Width across Flats)Cl (Overall Height)hReference Tightening Torque
for Strength Category 4
kgf・cm
Weight
(g)
NominalCoarseFine DetailsStandard DimensionsToleranceStandard DimensionsToleranceStandard DimensionsToleranceApprox.Approx.ToleranceApprox.
M81.251.06.50 -0.586.50 -0.58130 -0.71511±0.84.51158.6
M142.01.5110 -0.7110 -0.7220 -0.825.418.5±1.27.565039
M182.51.515152731.225.510.5150080
M222.51.51818320 -1.03731.513.52400130
M243.02.0190 -0.84190 -0.843641.633±1.8142965180
M303.52.024244653.142186210375
M333.52.026265057.746208520480
M364.03.02929550 -1.263.5502110700630
M394.03.0310 -1.0310 -1.06069.354±2.22314000935
M454.54.036367080.86327214001330
M485.04.038387586.56729254001595
M525.04.042428092.47533323002055
M565.54.04545850 -1.498.17934404002410
M646.04.0510 -1.2510 -1.29511089±2.538603003172
Part Number
HNTLHL-S45C3W-M18
HNTLHL-S45CPLB-M14
HNTLHL-S45CPLB-M18
HNTLHL-SCM3W-M14
HNTLHL-SCMPLB-M14
HNTLHL-SCMPLB-M18
Part NumberNumber of pc(s). included in pkg.Minimum order quantityVolume DiscountDays to ShipRoHSNominal of Thread (M) Material Surface Treatment Sales Unit Surface Treatment (Details)
1 Piece(s) 14 Day(s) or more 1018[Steel] S45CTrivalent ChromateLow Quantity (can be purchased from one)[Trivalent Chromate] Trivalent White
1 Piece(s) 14 Day(s) or more 1014[Steel] S45CParkerLow Quantity (can be purchased from one)Other special processings
1 Piece(s) 14 Day(s) or more 1018[Steel] S45CParkerLow Quantity (can be purchased from one)Other special processings

200 Pieces Per Package

1 Pack(s) 14 Day(s) or more 1014[Steel] SCM435(H)Trivalent ChromateBox/package[Trivalent Chromate] Trivalent White

200 Pieces Per Package

1 Pack(s) 14 Day(s) or more 1014[Steel] SCM435(H)ParkerBox/packageOther special processings

100 Pieces Per Package

1 Pack(s) 14 Day(s) or more 1018[Steel] SCM435(H)ParkerBox/packageOther special processings

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Basic Information

Applications, Functions Stop loosening Thread Type Metric coarse Locking Details Hard Locking Bearing Nuts

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations)
Tel:021-8990-4102 / FAX:021-8990-5803
8:30am - 5:30pm (Monday - Friday)