MICRON® America – Grommets &Washers Identification Guide (Complete Edition)

MICRON® America – Grommets & Washers Identification Guide (Complete Edition)

This grommets and washers identification guide explains every MICRON® America grommet and washer type with clear, professional definitions. You’ll learn self-piercing vs sheet-metal vs rolled rim grommets, washer types, and the eyelet vs grommet difference for faster, more accurate product selection.

“Eyelet vs. Grommet”

The difference between eyelets and grommets is actually quite subtle. Generally, grommets have a larger flange-to-hole ratio, meaning their wider flanges grip more surface area of the material for stronger reinforcement.

Some customers prefer eyelets simply for their appearance, finding the smaller flange more decorative or elegant. The choice often depends on aesthetic preference rather than function.

It’s a common misconception that grommets are two separate parts — the grommet and the washer. In reality, the word “grommet” refers to the main ring, while the washer is an optional reinforcement part. They are usually sold together as a set (grommet + washer), but:
• Some users install grommets without washers,
• Others use washers with eyelets, depending on the application.

Additionally, smaller sizes such as #1.7, #1.8, #00, #0, or #1-J are sometimes referred to by customers as eyelets, even though they are technically small grommets.

🔹 Self-Piercing Grommets & Washers

Self-piercing grommets and washers deliver a modern, time-saving alternative to traditional fastening methods. Designed to cut cleanly through banner and sign materials, they set and secure in one smooth motion—no pre-punched holes required. With every press, the grommet and washer pierce the substrate and form a flawless rolled edge in a single step, creating a strong, professional finish every time.

Micron’s premium self-piercing grommets stand out with a smooth inner edge that reduces friction on cords, ropes, or other materials—helping extend product life while maintaining a polished appearance. For thicker materials, Micron also offers long and extra-long neck options in sizes #2 and #3, engineered specifically for 8 mil and 10 mil coroplast or foam board applications or up to ½” thick materials. These extended neck grommets ensure a perfect fit and a secure, lasting hold even in demanding display environments.

While self-piercing grommets from different brands may look similar, tool and die compatibility can vary—so always verify your equipment setup to achieve the best results with Micron’s precision-engineered products.

🔹 Sheet-Metal Grommets

Sheet-metal grommets are the traditional two-step style, requiring you to first punch a hole in the material before installing the grommet with a washer. Known for their wider outside diameter, they deliver enhanced edge reinforcement and long-lasting strength. Compatible with plain, teeth, or neck washers, these grommets are strong, economical, and versatile, making them ideal for use with vinyl, tarps, and banners. Although they require a two-step operation—hole punching followed by setting—they remain a dependable choice for durable, professional results.

🔹 Rolled Rim Grommets

Rolled rim grommets feature a rolled or rounded outer edge that provides extra strength and durability. They are typically used with spur (teeth) washers, which bite into the material to deliver maximum grip. This combination makes rolled rim grommets an excellent choice for climbing gear, parachutes, tents, and other long-term, heavy-duty applications where safety and reliability are critical. Designed for thick, durable fabrics, they require a two-step operation—hole punching followed by setting—and offer the strongest hold and long-lasting performance among grommet types.

“No Holes Required vs. Pre-Punched Holes”

Micron self-piercing grommets make installation faster and easier than ever with their specially engineered barrel tip, which features a thinner gauge allowing it to cut cleanly through the material while the grommet and washer are pressed together. This design eliminates the need to pre-punch holes—the press and grommet do all the work in one smooth, efficient motion. The result is higher productivity, reduced labor time, and a clean, professional finish every time.

By comparison, sheet-metal grommets with plain, teeth, or neck washers—and rolled rim grommets with spur washers—do not include a finer gauge tip. Because of this, they require a pre-punched hole before setting. While hole punching is simple using Micron’s hole punch tools or dies, it does add an extra step to the production process.

Washer Types and Their Functions

Key Differences Summary

• Plain Washer – economical, standard reinforcement; preferred in textile and banner industries.
  • Rolled Rim + Spur Washer – strongest interlock; used in parachutes, tents, and outdoor gear.
  • Teeth / Gripping Washer – best hold for long-term banners and tarpaulins.
  • Self-Piercing Grommet – fast one-step setting; may require pre-hole on thick materials.
  • Sheet-Metal Grommet – classic two-step type with larger outside diameter for strong reinforcement.

One-Step vs. Two-Step Operation