HF-welded into the foil rather than punched through it, a Carmo plastic eyelet fuses with the material across the whole flange: in Carmo’s own pull test about three times the pull strength of a struck metal grommet, with no rupture, rust or stains. (New to the process? Start with what HF welding is.)
We blend our own PVC compound to meet specific demands for performance, weather and UV exposure. Typical applications: banners and building wraps, construction signage, tarpaulins for trucks, trailers and boats, pool covers, tents and agriculture: anywhere holes in foil or fabric see high pull forces.
Replacing metal grommets? Strength, corrosion, recycling and equipment, the whole conversion argument in one guide: metal vs. welded plastic eyelets →
The range: round eyelets, Ø5–Ø40 mm
This page covers the round range: square-shoulder and round-shoulder, standard and heavy-duty. Need a slot rather than a hole? See weldable eyelets, oval & square. Need tool-free mounting on site? See clip grommets.
Eyelets with square shoulders
| Item | d1 (mm) | d2 (mm) | d3 (mm) | Metal grommet equiv. | |
|---|---|---|---|---|---|
| 04-111 | 5.0 | 9.3 | 12.6 | ≈ #00 (3/16″) | |
| 04-112 | 6.5 | 10.7 | 14.5 | ≈ #0 (1/4″) | |
| 04-274 | 7.0 | 14.5 | 24.5 | ≈ #1 (5/16″) | Heavy duty |
| 04-100 | 8.0 | 12.9 | 16.9 | ≈ #1 (5/16″) | |
| 04-275 | 11.0 | 17.5 | 27.1 | ≈ #3 (7/16″) | Heavy duty |
| 04-276 | 13.0 | 22.0 | 32.2 | ≈ #4 (1/2″) | |
| 04-277 | 15.0 | 24.5 | 37.2 | ≈ #5 (5/8″) | Heavy duty |
| 04-278 | 19.0 | 30.2 | 43.3 | #6 (3/4″) | Heavy duty |
| 04-279 | 40.0 | 53.3 | 67.1 | ≈ 1 5/8″ | Heavy duty |
Eyelets with round shoulders
| Item | d1 (mm) | d2 (mm) | d3 (mm) | Metal grommet equiv. | |
|---|---|---|---|---|---|
| 04-121 | 9.5 | 14.0 | 19.8 | #2 (3/8″) | |
| 04-101 | 12.0 | 20.0 | 29.8 | ≈ #4 (1/2″) | Heavy duty |
| 04-122 | 12.7 | 18.0 | 23.3 | #4 (1/2″) | |
| 04-123 | 15.8 | 21.8 | 27.4 | #5 (5/8″) | |
| 04-125 | 25.0 | 31.0 | 36.4 | 1″ |
All measurements and drawings are nominal. Metal-grommet equivalents are matched on the inner hole (d1) to standard grommet trade sizes and are indicative, a welded eyelet is selected by application, not by drop-in swap. For exact measurements and critical integration, contact sales for detailed drawings.
Switching from metal? Start with 04-283
Metal Reinforced Eyelet 04-283, patented
A stainless-steel ring (ASTM A240, Inox 304) moulded into a weldable plastic flange, the welded hold with metal where the rope runs. 3–4× the pull strength of a metal grommet plus the wear resistance of metal. PVC and PVC/PUR.
Proof: the pull test
A Carmo HF-welded plastic eyelet against a standard metal grommet in a PVC-coated banner, pulled until the fabric tears. The welded eyelet bonds across the whole flange instead of being punched through, the foil gives up long before the weld does. Watch the pull test and see the full comparison in the conversion guide.
A side-by-side pull test: a Carmo HF-welded plastic eyelet against a standard metal grommet in PVC-coated fabric, pulled until the fabric tears. The welded eyelet fuses with the foil across the whole flange instead of being punched through it: in Carmo's workshop pull test on PVC-coated nylon (600 g/m²), a single welded eyelet held about three times the force of a metal grommet, and a double-welded eyelet about four times. In-house test with an uncalibrated newtonmeter: indicative, not a certified standard test; ask Carmo for a test on your own material. The reason to weld eyelets, not set metal ones.
Transcript
Carmo workshop pull test: an HF-welded plastic eyelet against a metal grommet, in PVC-coated fabric. The metal grommet is punched through the fabric; it grips only the rim it clamps. Under load, the grommet tears out of the fabric. The welded eyelet is fused to the coating across its whole flange. The weld spreads the pull into the fabric; it holds far more force before tearing. Carmo in-house test, uncalibrated newtonmeter: indicative. Ask for a test on your material.
A set plastic grommet holds no more than a metal one, the win is the weld, not the polymer:
Application notes
How to mount weldable eyelets
Weldable eyelets are typically mounted by high-frequency (HF/RF) welding or ultrasonic welding. Carmo supplies tools and electrodes covering all geometries, for existing bar welders, and a line of dedicated machines for integrated punching, automatic feeding and welding.
Prototyping, repairs and small runs
For prototyping and small series, eyelets weld with the UG4 eyelet setter tool in an existing bar welder: no dedicated machine required. Eyelets can also be bonded for temporary mock-ups.
For repairs and temporary mock-ups, soft PVC can also be bonded with a commercially available PVC glue rather than welded. For anything load-bearing, welded mounting or clip grommets are the durable choice: contact sales.
How to increase strength
Carmo PVC eyelets weld single-sided or double-sided. Single-sided is fast and can hide the eyelet from direct view: useful in high-quality banner production. Double-sided gives maximum strength and durability, especially in mesh materials. The eyelet’s smooth inner bore is gentle on what runs through it: extending the life of guy-lines, cords and ropes.
Frequently asked
Can plastic eyelets replace metal grommets in tarpaulins and banners? Yes: welded in, the joint holds more than the clamped grommet it replaces, and nothing on the fabric can rust or stain. The full comparison: the conversion guide.
What can the eyelets be welded onto? HF-weldable substrates: chiefly PVC- and PU-coated fabrics: tarpaulins, banners, building wraps, covers and technical textiles. More in the HF-welding explainer.
Are the eyelets recyclable? The standard range is mono-material PVC and recyclable in PVC streams: see plastic sorting and recycling.
Made in Denmark, documented quality
Every Carmo eyelet is injection moulded on our single site in Espergærde, Denmark. Producing in-house keeps the value chain under our control: consistent quality across variants, short supply lines and dependable delivery. As a component supplier working under an ISO 13485-certified quality management system, we run documented, proven processes with traceability from raw material to shipment; our technical components are built to the same quality discipline: see quality assurance. That process control also lets us scale and adapt production in a structured way as project requirements change.
Need a size that isn’t listed? Carmo Rapid Prototyping, part of the same production setup, turns your specification into custom eyelet prototypes quickly.
Ordering and contact
Samples and detailed drawings: contact sales.
Related: machines for eyelet welding · eyelet setter tool · HF electrodes · eyelets oval & square · clip grommets · eyelet borders · all grommets & eyelets
Carmo A/S's quality management system is certified to ISO 13485:2016 Medical devices quality management system by Bureau Veritas (accredited by DANAK), certificate no. DK020611. Scope: Design, development, manufacture and assembly of injection molded plastic components. Valid: 2. September 2026 – 1. September 2029.
All Carmo plastic components are manufactured under the same QMS and procedures.
Ordering and variant information
All measurements and drawings are nominal. For exact measurements - and for critical integration - please contact sales for detailed drawings.
