Spring-Fast® Grommet Edging: The "FM" Series
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 Spring-Fast Grommet Edging:  FM Series

FM Series side view

The FM Series has the lowest profile of any wire protection grommet edging available
and it provides a near flush surface on one side of the mounted chassis.

The steel substrate encapsulated with lubricious fusion bonded nylon gives fast snap-on superior abrasion
and chemical resistance, enhanced gripping strength for severe shock/vibration, multi axis flexibility.

Key Benefits

  • Superior performance: encapsulated stainless steel core: outperforms plastic grommets.
  • Snap on installation lowers costs 49% vs. grommets with glue.  Watch the 4 min. video below.
  • Improves efficiency 9.5x – due to fewer steps in workflow.

Grommet Differentiation Table (GDT)

Grommet SeriesCastle GeometryFlexibilityPolymer CoatingExtra Cushion100% TPE EncapsulationHigh HeatMil SpecApplication MethodNotes
FM OpposingMulti axisYesNoNo285°F/140°CNoSnap on/No adhesive1 side flush
No cure time delay
MS21266 Nylon Opposing2 axisNAYes NA257°F/125°CYesAdhesive Required8-24hr cure time delay
MS21266 Teflon Opposing2 axisNAYes NA527°F/275°CYesAdhesive Required8-24hr cure time delay


  • Commercial use when superior grip strength and retention is important – plus flush mount capability
  • Straight and roll formed edges
  • Small radii inside or outside corners


The old nylon grommet with glue is old, inefficient and costly.  DTi has a better way.

  • Nylon encapsulated stainless steel substrate
  • Snaps on fast with finger pressure
  • Installs continuously with multi axis conformity
  • Self locking with strong retention – no adhesives
  • Simpler install: no adhesive, fixturing, curing, clean up or OSHA concerns
  • Maintenance is far easier due to its ease of application, use and removal
  • Customization available (lengths, colors and print)

Key Specifications

  • Resistant to hydrocarbons, immersion, salt spray, shock and vibration.
  • Operating Temperature Heat Continuous to -40°F to 285°F (-40°C to 140°C)
  • UL94 V-0 Flammability Rating
  • High Shock and Vibration Resistance to rms G 41.7
  • 3 sizes to fit edge thickness:  0.044” to 0.090” (1.1 mm to 2.3 mm)
  • Available in custom cut lengths & factory pre-cut reels of 25 ft. (7.6 m), 100 ft. (30.5 m) or 500 ft. (152 m)
  • Tools available: Installation roller, full by-pass shears, castle removal, measuring scale,
  • go-no go sizing gauge, cutter cart

Spring-Fast® Sizes – FM Series:

Product SizeT
Sheet Thickness
inches (mm)
2.044 - .056 (1.1 - 1.4)0.14 (3.6)
3.055 - .069 (1.4 - 1.7)
4.069 - .090 (1.7 - 2.3)