Custom molded grommets for protecting single wires and small harnesses as they pass through sheet-metal or plastic panels. Specify the wire diameter, panel opening, panel thickness, groove dimensions and required holding or strain-relief function for drawing review and sampling.
Small pass-through grommets isolate individual wires or compact wire groups from panel edges while helping control position and retention. Fit is defined from the wire diameter, panel opening, panel thickness, groove geometry, and required insertion behavior.
Provides a soft contact surface between wire insulation and the edge of a metal or plastic panel.
The inner opening can be sized around the conductor or small bundle while allowing the required installation clearance.
The locating diameter is matched to the panel cutout so the part seats consistently without becoming a general cable-entry grommet.
Groove width is defined from panel thickness to help the molded part remain seated after installation.
Flange dimensions can be adjusted to cover the opening edge and provide the required resistance to pull-through.
Compound and hardness are selected together with geometry so the part can be installed without sacrificing retention.
Use the assembly dimensions first, then confirm compound, hardness, inspection, and tooling requirements for the project.
| Product Specifications | |
|---|---|
| Product Type | Molded Small-Wire Grommet |
| Primary Use | Single conductors and small wire bundles |
| Opening Design | Single-hole or project-specific pass-through profile |
| Compound Standard | ASTM D2000 compound support available |
| Compliance Options | FDA, NSF, RoHS, REACH |
| Material Brands | ZEON, LANXESS, Dow Corning, DuPont |
| Hardness | 10–90 Shore A; selected for fit and insertion needs |
| Critical Dimensions | Wire OD, panel hole, panel thickness, groove width, flange dimensions |
| Quality System | IATF 16949 Certified |
| Inspection Standard | Critical-dimension and visual inspection; AQL or C=0 requirements by project |
| Tooling | In-house tooling, 2 CNC machines operating 24 hours per day |
| Sample Lead Time | About 8 Days |
| Mass Production Lead Time | 12–18 Days |
| Typical Assemblies | Sensor leads, single-conductor exits, appliance wiring, instrument panels, outdoor devices |
Before sample tooling, we review wire OD, panel hole, panel thickness, groove fit, material, and retention requirements. Lead time is confirmed after the drawing and compound are reviewed.
Sample Lead Time
Mass Production Lead Time
These examples focus on compact pass-through points for individual conductors and small wire groups rather than large cable entries or full harness interfaces.
Protects small sensor wires where they pass through thin panels, covers, or compact equipment housings.
Provides edge isolation where one insulated conductor exits an enclosure or mounting plate.
Used at compact internal wire-routing points in appliance housings and control assemblies.
Supports small wire exits in controllers and compact electrical housings where panel-edge protection is required.
Helps position small conductors passing through instrument covers, faceplates, or thin mounting panels.
Material can be selected for small wire exits exposed to moisture, ozone, vibration, or changing temperatures.
Custom small-wire pass-throughs can be developed from a drawing, existing sample, or installation dimensions. Review starts with the relationship between the conductor, panel opening, and retaining groove before material and tooling are finalized. For larger entry points, see grommets for larger cables and harnesses. For unused openings, see closed grommets for unused holes.
Check wire diameter, panel opening, panel thickness, groove width, flange geometry, and required retention.
Select the compound according to temperature, oils or fluids, weather exposure, flexibility, and compliance requirements.
Confirm insertion, wire clearance, panel retention, and critical molded dimensions before production approval.
Inspection can be defined for critical diameters, groove dimensions, appearance, and project-specific batch acceptance requirements.
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