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Self-piercing grommets are essential for securely fastening materials like tarps, banners, and fabrics. Ensuring you select the right type of grommet and tool is crucial for durability and ease of use. This guide will help you navigate the key considerations for making an informed purchase.
PRECISION ENGINEERED MACHINE PARTS: Our grommet dimensions are: (Grommet Dimensions) Hole size: 3/8 in. Flange diameter: .750 in. Length under flange: .200 in. Metal thickness: .010 in. (Washer Dimensions) Inside diameter: .437 in. Outside diameter...
VERSATILE SOLUTION FOR MULTIPLE APPLICATIONS: Stimpson Co.'s grommet kits are great for industrial, government, military, medical and safety applications. Our catalog includes plain grommets, grommets with teeth, long neck grommets, rolled rim brass, and...
RELIABLE, DURABLE, & EASY-TO-INSTALL: Stimpson's metal grommets are designed for easy setting alongside our coinciding 405 Bench Press Grommet Machine. Our durable construction ensures long-lasting performance for all your projects.
HEAVY DUTY FOR PARAMOUNT CONDITIONS: Stimpson's self-piercing kit includes 500 heavy duty, marine-grade 304 stainless steel grommets. Rigorously inspected in-house, we offer grommets for tarps, canvases, banners, and more meant to withstand tough...
RICH HISTORY: For over 170 years, Stimpson Co. has set the standard with quality stainless steel grommets. Our hole plugs, washers, eyelets and grommets ensure secure fastening for a wide variety of projects.
Dimensions in Inches: Featuring a 3/8 hole size, 0.750 flange diameter, 0.200 length under the flange, 0.015 metal thickness, 0.437 inside diameter, 0.770 outside diameter, and 0.011 metal thickness, these heavy-duty brass grommets are ideal for fabric...
High Quality: Crafted from durable brass with rigorous in-house inspections, these grommet and washer sets ensure near-zero defect rates, making them reliable for industrial, marine, and repair applications.
Expertise Since 1852: Backed by a rich history, Stimpson provides extensive experience in creating grommets, eyelets, washers, and hole punches for professionals in commercial printing & signage, marine, industrial fabrics, and hardware-making industries.
Versatile Applications Across Projects: Ideal for leatherwork, flag making, tarp repair, and purse hardware, these grommets are suitable for punching holes in various materials like fabric, tarps, and more.
Multiple Durable Finishes Available: Designed for heavy-duty use, these brass grommets come in plain brass, dull black chemical finishes, and nickel-plated options, ensuring style and durability for any project or repair.
MATERIAL COMPATIBILITY & WARNINGS: Ideal for thickness of 1-3 mm materials like leather, paper, cardstock, and thin tarps. Designed for decorative, light-duty use. CRITICAL WARNING: NOT SUITABLE FOR FOAM BOARD, FABRIC, OR CLOTH. These soft, thick...
Precautions for Use – Inside Dia: 6.4mm / Outer Dia: 12mm (A.I.S.) / Flange Width: ~3mm. An error range of 0.1 mm to 0.3 mm is normal. Please choose the right size that you need according to the product dimension description. Please pay attention to the...
Portable & Lightweight Handheld Eyelet Pliers - These manual eyelet pliers with a special lightweight design, made of Carbon steel, chrome-plated on the surface, the handle of hole punch pliers is plastic-impregnated, which is comfortable to grip, easy to...
Practical Grommet Eyelet Plier Set - 803pcs grommet tool kit included 400pcs 1/4 inch small metal eyelets in silver and gold, 400pcs matching metal washers in silver and gold, 1* handhold eyelet punch pliers, 1 * hole punch, 1 * user manual. (An error...
Comes with Use Manual - This eyelets pliers kit comes with a detailed graphic version user manual that can help your DIY works more easily and efficiently. Please pay attention to the direction of the buttonhole and the pliers, the wrong direction will...
400Pcs Small Eyelets Washers - This grommet eyelets pliers kit comes with 400pcs metal eyelets washers in gold and silver, which can help make eyelets stronger, not easy to loosen. There is also a detailed manual to help you better use the eyelets pliers...
[Whats In The Package]3 Interchangeable Dies & Grommets: Including #0 (1/4", 6 mm), #2 (3/8", 9.5 mm), #4 (1/2", 12 mm) dies & 900 grommets (300 each size) for meeting different needs.
[Improve Your Efficiency]There is a snap-ring incorporated onto the stem of the top die and it holds the grommet in place,no nees to hold the grommet anymore,makes you Improve your efficiency.
[Make A Perfect Grommet]Self piercing grommet machine with our die set and nickel plated grommets will punch a hole and set the grommets in one press(Thin material like corrugated plastic,crafts , paper cardboard and thin cloth.For thick leather you need...
[Labor Saving]Mounted to a tabletop or just stand alone. Gets grommets to be set further into the material, not just along the Edge. Press the Lever, which as simple to use as a stapler. The 70” lever handle provides plenty of torque to snap the...
[Application]Our grommet machine can be used as a punch machine, eyelet machine. It can help you to punch the grommets for Banners, Signs, Belts, Bags, Shoes, and etc, a must have for sign shops, dress makers, arts and crafts.
DIY crafts - This kit works on fabric, leather, rubber, vinyl, cardboard, and softer metals. You'll definitely find it helpful in your craft projects using grommet construction, reinforce holes and prevent from tearing.
REPAIRING & NEW INSTALLATION - Featuring a hole cutter, anvil and mandrel, easily cut a hole, press, and form a metal grommet for repairing and installing in a range of materials.
RUST PROOF - Made of Premium quality of silver copper, Lightweight, rust-proof and last for years of durability and performance.
ALL-IN-ONE -The easy-to-use kit comes with 100 sets of silver grommets in 1/2 inch, a hole punch, and an install tool in a portable storage box to keep the supplies organized.
Commitment - We stand behind our products! Please feel free to contact us if you have any questions or concerns.
SELF-PIERCING = NO PRE-PUNCHED HOLE: Designed to pierce and set in one operation with the correct setting die/tool, saving time on banners, tarps, vinyl, fabric, leather, and similar materials.
IRON STRENGTH + WASHER SUPPORT: Heavy-duty iron grommets paired with washers for stronger reinforcement, better load distribution, and reduced pull-through under tension.
CHOOSE YOUR SIZE (VARIATION): #1 5/16", #2 3/8", #3 7/16", or #5 5/8" inner diameter options—select the size that matches your application and hardware.
FINISH OPTIONS (VARIATION): Available in Antique Brass, Black, Brass, Nickel (and Zinc-plated iron on select bulk options) for the look and corrosion resistance you want.
COUNTS VARY BY OPTION: Standard options include 500 complete sets (grommets + washers); bulk option includes 10,000 count box for high-volume production (see selected variation).
SELF-PIERCING = NO PRE-PUNCHED HOLE: Designed to pierce and set in one operation with the correct setting die/tool, saving time on banners, tarps, vinyl, fabric, leather, and similar materials.
IRON STRENGTH + WASHER SUPPORT: Heavy-duty iron grommets paired with washers for stronger reinforcement, better load distribution, and reduced pull-through under tension.
CHOOSE YOUR SIZE (VARIATION): #1 5/16", #2 3/8", #3 7/16", or #5 5/8" inner diameter options—select the size that matches your application and hardware.
FINISH OPTIONS (VARIATION): Available in Antique Brass, Black, Brass, Nickel (and Zinc-plated iron on select bulk options) for the look and corrosion resistance you want.
COUNTS VARY BY OPTION: Standard options include 500 complete sets (grommets + washers); bulk option includes 10,000 count box for high-volume production (see selected variation).
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Self-Piercing Grommets
Material and Durability
Consider the material of the grommets. Brass and stainless steel offer excellent corrosion resistance and strength, making them suitable for outdoor applications or heavy-duty use. Aluminum is lighter and more cost-effective but may not withstand as much wear and tear. The thickness of the material you intend to grommet will also influence the choice; ensure the grommet size and material can handle the load.
Grommet Size and Type
Inner Diameter: Measure the diameter of the hole needed for your application. This is the most critical dimension for ensuring the grommet fits your material and any fasteners you might pass through it.
Flange Diameter and Length: The flange diameter affects how well the grommet distributes pressure, while the length (or height) determines how much material it can securely clamp.
Tool Compatibility: Ensure the grommets you choose are compatible with the grommet setting tool you own or plan to purchase. Some kits are designed for specific sizes or types of grommets.
Ease of Installation
While most self-piercing grommets require a setting tool, some kits are designed for simpler manual application with basic tools. For frequent use or large projects, investing in a durable, ergonomic grommet tool can significantly speed up the process and reduce hand strain. Look for tools that offer a clean, consistent set with each application.
Frequently Asked Questions
What is a self-piercing grommet?
A self-piercing grommet is a two-part metal fastener designed to create its own hole in materials like fabric, vinyl, or leather. When set with a tool, the top part pierces the material and folds over the bottom part, creating a secure, reinforced hole.
What tools are needed to install self-piercing grommets?
Typically, a grommet setting tool is required. These tools come in various forms, from manual hand tools and bench presses to powered pneumatic or hydraulic presses. The specific tool depends on the grommet size and the volume of work.
Can I use self-piercing grommets on any material?
Self-piercing grommets work best on flexible materials that can be pierced and clamped. They are commonly used on canvas, vinyl, tarps, leather, and heavy fabrics. Very rigid materials may not be suitable as they could crack or resist the piercing action.
How do I choose the right grommet size?
The most important measurement is the inner diameter, which should accommodate the item passing through the grommet (like a rope or bolt). Consider the material thickness as well; the grommet needs to be long enough to securely clamp the layers of your material.
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