Hex Jam Nut,M3x0.50,5.5mm W,PK 100 -- 6CB57 [6CB57 from Lindstrom Metric, LLC]
from Grainger Industrial Supply

Hex Jam Nut, Nut Type Thin, Property Class 04, Steel, Zinc Plated Finish, Thread Size M3X0.50mm, Thread Type Metric, Right Hand Thread Direction, Width 5.5mm, Height 1.8mm, Rockwell Hardness C30 Maximum, General Purpose, Meets/Exceeds DIN 439B, Package 100 [See More]

  • Size: M3
  • Material: Steel
  • Type: Jam Nut
  • Thread Direction: Right Hand
ESL Slotted Self-Locking Hexagon Nut -- ESL030050QVZO
from J.Lanfranco Fastener Systems Inc.

The ESL's two self-locking slots make it ideal in any application subjected to high vibration, shock, impact, heavy loads, and high temperatures. The ESL provides unparalleled locking ability without seizing up upon removal. [See More]

  • Size: M3
  • Material: Bronze (optional feature); Brass (optional feature); Exotic Metals (optional feature); Steel (optional feature); Hardened Steel (optional feature); Titanium (optional feature)
  • Type: Slotted Locknut
  • Finish: Galvanized (optional feature); Nickel Plated (optional feature); Zinc Plated; Zinc Chromate (optional feature); Geomet®
Trident Heat-Treated Carbon Steel Locknuts - Type SL - Metric -- SL-M3-1ZI
from PennEngineering

Type SL self-locking nuts are designed with a unique and economical TRI-DENT ® locking feature, which meets demanding locking performance requirements. 3 cycle locking performance. Achieved using steel socket head cap screws, 180 ksi / property class 12.9 with standard finish of thermal oxide... [See More]

  • Size: M3
  • Material: Hardened Steel
  • Type: TRI-DENT® Locking Feature
  • Finish: Zinc Plated
M3 - 0.5 Cl. 6 DIN 958 Nylon Insert Lock Nut, Zinc -- N6985M03P0.5Z
from NBS Corp.

Featuring a white nylon insert and available in both normal and thin pattern, NBS’ nylon insert lock nuts are the ideal general purpose locking nut. Available from ¼” through 1” (inch) and M3 through M16 (metric) internal diameter, all nylon insert lock nuts meet IFI... [See More]

  • Size: M3
  • Finish: Zinc Plated
Self-Clinching Collar, Locking -- NHLSS-M3-*-BDF
from PENCOM

Custom sizes available [See More]

  • Size: M3
  • Finish: Black Dry Film Lubricant
  • Material: Stainless Steel
  • Thread Direction: Right Hand
2605815 [2605815 from RS Components, Ltd.]
from RS Components, Ltd.

Type:Self Locking; Material:A1 Grade 18/8 Stainless Steel; Thread Size:M3; Thread:Metric [See More]

  • Size: M3
  • Material: Stainless Steel