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All Metal Miniature Hex Lock Nut

Applications: The LH1660 Series is made of stainless steel, type 18-8/303, suitable for application at 900°F with the addition of dry lubricant (molybdenum disulphide). The LH1660 Series is also available in carbon steel suitable for application at 450°F.

When ordering for use at higher temperature ranges requiring dry film lubricant, specify prefix "RM" (example: RM79LH1660-40)
Unit of Measure

Specifications

Post Plating Finish

N/A F - Yellow Chromate Y - Yellow Alodine

Material

N/A 2 - Low Carbon Steel
Plating1 N/A 1 - Zinc 2 - Cadmium 9 - Plain

Size

N/A #4
Thread2 N/A 4-40
Height - A3 N/A .110 in

Across Flats - B

N/A .190-.181 in

(Ref) Across Corners - C

N/A .205 in

(Ref) Wrench Pad - D

N/A .063 in

Weight Lbs./C (Steel)

N/A .045
  • 1 9 - Plain cannot be used with a Post Plating Finish
  • 2 Other Thread Sizes Are Available from Stock or on Application
  • 3 Tolerances:
       • ±.005