Self-Piercing Brass Grommets & Washers – Size #3XL (7/16", Extra-Long Neck 12 mm) – 500 Sets Per Bag - Image 1
Self-Piercing Brass Grommets & Washers – Size #3XL (7/16", Extra-Long Neck 12 mm) – 500 Sets Per Bag - Image 2
Self-Piercing Brass Grommets & Washers – Size #3XL (7/16", Extra-Long Neck 12 mm) – 500 Sets Per Bag - Image 3
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Self-Piercing Brass Grommets & Washers – Size #3XL (7/16", Extra-Long Neck 12 mm) – 500 Sets Per Bag
Self-Piercing Brass Grommets & Washers – Size #3XL (7/16", Extra-Long Neck 12 mm) – 500 Sets Per Bag - Image 2
Self-Piercing Brass Grommets & Washers – Size #3XL (7/16", Extra-Long Neck 12 mm) – 500 Sets Per Bag - Image 3
TEP-3 Hand Press Package Deal with Self Piercing Grommets & Dies – Sizes #1.7 (1/8”), #00 (11/64”), #0 (3/16”), #1-J (1/4”) | MICRON
TEP-3 Package Deal – Hand Press + #1.7 (1/8”) Self-Piercing Dies + 500 Sets Brass Grommets Price range: $165.67 through $175.67
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TEP-3 Hand Press Package Deal with Self Piercing Grommets & Dies – Sizes #1 (5/16”), #2 (3/8”), #3 (7/16”) | MICRON
TEP-3 Package Deal – Hand Press + #3 (7/16”) Self-Piercing Dies + 500 Sets Brass Grommets Price range: $205.25 through $215.25

Self-Piercing Brass Grommets & Washers – Size #3XL (7/16″, Extra-Long Neck 12 mm) – 500 Sets Per Bag

$66.90

Self-piercing brass grommets size #3XL (7/16″, Extra-Long Neck 12 mm) with washers. Made from heavy-gauge brass (corrosion-resistant), available in Brass and Nickel finishes.

Each bag includes 500 pcs grommets & 500 pcs washers (complete sets).

Designed for extra-thick materials up to 10 mm such as coroplast, corrugated plastic, and vinyl. Please see the size chart below for full dimensions.

👉 For installation tips, visit our MICRON® America – YouTube.
👉 For bulk orders or distributor inquiries, please Contact Us.

Weight 3.760 lbs
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SIZE CHART / RELATED PRODUCT

SIZE CHART / RELATED PRODUCT

RELATED PRODUCT

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D-SPGD #3 (7/16″) Self-Piercing Grommet & Washer Setting Dies – 2 pcs Set

Price range: $48.50 through $106.10

These dies are compatible with Stimpson and Scovill grommets, however will need adapters to work on their machines.

D-SPGD #3 (7/16″) self piercing grommet setting dies are made of stainless steel for long life and rust resistance.

This 2 pcs set features a spring-action design that grips grommets tightly for accurate placement and easy setup.

Compatible with MICRON® America TEP-1, TEP-3, M-3, DEP-2, PL-10, MC-20 Single and Double Cylinder, and MS-1 machines.

In addition, these dies can be used for installing SPGW #3 regular, long neck, and extra long neck grommets, giving customers flexibility with one tool.

👉 For orders or inquiries, please Contact Us.
👉 For installation tips, visit our MICRON® America – YouTube.

Dies are final sale, and cannot be returned NO EXCEPTIONS.

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TEP-3 hand press manual machine — deep-frame, heavy-duty cast iron; interchangeable dies; sets rivets, snaps, buttons & #5 grommets — MICRON® America
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TEP-3 Hand Press Machine – Rivets, Snaps, Jean Buttons & Grommets

$119.95

TEP-3 hand press with interchangeable dies. Handles #5 self-piercing grommets and a wide range of rivets, snaps, and buttons.

Top/upper dies are available in two interfaces: 1/4″-20 UNC (Unified Coarse Thread) and Ø9.5 mm (3/8″) smooth shank. The lower die base also comes in two sizes: Ø18.95 mm (≈3/4″) smooth and Ø11.95 mm (≈15/32″) smooth.

Deep frame, free-standing or bench-mounted, heavy-duty sphero cast iron.

Dies: All dies sold separately.

👉 For orders or inquiries, please Contact Us.
👉 For installation tips, visit MICRON® America – YouTube.
👉 Compatible Dies & Tooling: Shop MICRON® dies & setting tools

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M-3 hand press manual machine — CE-certified cast iron; interchangeable upper/lower dies; deep frame; up to #18 grommet — MICRON® America
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M-3 All-in-One Hand Press Machine – Textile Fastening & Grommet Press

Original price was: $450.00.Current price is: $299.95.

M-3 hand press (manual) with interchangeable dies.

Top/upper dies are available in two interfaces: 1/4″-20 UNC (Unified Coarse Thread) and Ø9.5 mm (3/8″) smooth shank.

The lower die base also comes in two sizes: Ø18.95 mm (≈3/4″) smooth and Ø11.95 mm (≈15/32″) smooth.

Deep frame, high neck, double-lever advantage, supports grommets up to #18 (2 ½”). CE-certified cast-iron body.

  • Dies: All dies sold separately.

Mounting: Must be bench/table mounted before use

👉 For orders or inquiries, please Contact Us.
👉 For installation tips, visit MICRON® America – YouTube.
👉 Compatible Dies & Tooling: Shop MICRON® dies & setting tools

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MC-20 Double Cylinder Multi-Function Pneumatic Fastening Machine – MICRON® America
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MC-20 Double Cylinder Multi-Function Pneumatic Fastening Machine

Price range: $2,650.00 through $3,183.95

The MC-20 Double Cylinder Multi-Function Pneumatic Fastening Machine is a Made in Europe MICRON® brand unit designed for heavy-duty snap, grommet, rivet, Jean button, and curtain grommet applications. With interchangeable dies, double pneumatic cylinders, and up to 950 kg/cm² pressure, it handles everything from #1.7 (1/8”) grommets to #18 (2 ½”) curtain grommets.

Interchangeable dies (top 1/4″-20 or Ø9.5 mm; lower Ø18.95 mm or Ø11.95 mm).

Equipped with metal cutting capability, it is ideal for metal signage and industrial textiles. Powered by 110/220V AC + 150 PSI compressor, and fitted with a mica safety cover + dual sensor system for maximum operator safety.

Shipping to be determined per weight & dimension.

For orders or inquiries, please Contact Us
For installation tips, visit MICRON® America – YouTube
Compatible Dies & Tooling: Shop MICRON® dies & setting tools

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MC-20 Single Cylinder Semi-Heavy Duty Pneumatic Fastening Machine – MICRON® America
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MC-20 Single Cylinder Semi-Heavy Duty Pneumatic Fastening Machine

Price range: $2,100.00 through $2,323.25

The MC-20 Single Cylinder Semi-Heavy Duty Pneumatic Fastening Machine is a Made in Europe MICRON® brand unit designed for snaps, grommets, rivets, jean buttons, spring snaps, and ring snaps. With 450 kg/cm² pressure, it installs fasteners from #1.7 (1/8”) to #8 (1-¼”) sheet metal grommets, making it ideal for textile, signage, and light industrial use.

Interchangeable dies (top 1/4″-20 or Ø9.5 mm; lower Ø18.95 mm or Ø11.95 mm).

Shipping will be determined per weight and dimension.

For orders or inquiries, please Contact Us
For installation tips, visit MICRON® America – YouTube
Compatible Dies & Tooling: Shop MICRON® dies & setting tools

Select options This product has multiple variants. The options may be chosen on the product page
PL-10 pneumatic fastener machine — portable air press on casters; installs #1–#3 plastic grommets; supports snaps, buttons & rivets — MICRON® America
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PL-10 Pneumatic Plastic & Metal Fastener Attaching Machine

Price range: $1,250.00 through $1,379.95

PL-10 pneumatic fastener machine — portable air press on casters for  #1 (5/16″), #2 (3/8″), and #3 (15/32″)  plastic grommets

plus small metal grommets, snaps, buttons & rivets. 150 PSI compressor required; interchangeable dies (top 1/4″-20 or Ø9.5 mm; lower Ø18.95 mm or Ø11.95 mm).

Floor-level operation for heavy banners and tarps.

Shipping: U.S. Continental flat-rate $59.95.

Dies sold separately.

👉 For orders or inquiries, please Contact Us.
👉 For installation tips, visit MICRON® America – YouTube.
👉 Compatible Dies & Tooling: Shop MICRON® dies & setting tools

Select options This product has multiple variants. The options may be chosen on the product page
MS-1 Deep-Frame Pneumatic Fastener Attaching Machine by MICRON® America – Semi-automatic press for eyelets, snaps, rivets, and jean buttons
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MS-1 Special Deep-Frame Pneumatic Fastener Attaching Machine

Price range: $2,750.00 through $2,899.95

The MS-1 Special Deep-Frame Pneumatic Fastener Attaching Machine is engineered for attaching fasteners to unconventional shapes such as purses, shoes, and finished products.

  • Air Compressor Requirement: 150 PSI
  • Force Capacity: Up to 450 kg/cm²
  • Frame Design: Deep frame for 3D items and precise positioning
  • Fasteners Supported: Eyelets, snaps, rivets, jean buttons
  • Safety: Includes hand safety ring + foot pedal for hands-free operation
  • Dies Compatibility:
    • Top/Upper Dies: ¼″-20 UNC or Ø9.5 mm (3/8″) smooth shaft
    • Lower Dies: Ø18.95 mm (3/4″) smooth or Ø11.95 mm (15/32″) smooth
  • Applications: Textile, printing, signage, footwear, leatherwork

Shipping to be determined per weight & dimension!

👉 For orders or inquiries, please Contact Us
👉 For installation tips, visit MICRON® America – YouTube
👉 Compatible Dies & Tooling: Shop MS-1 Dies

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TEP-3 Hand Press Package Deal with #3 Extra Long Neck (12 mm) Self Piercing Grommets & Dies – MICRON
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TEP-3 Package Deal – Hand Press + #3 (7/16”) 12mm Long Neck 500 Sets Brass Grommets + Dies

Original price was: $235.35.Current price is: $223.58.

The TEP-3 Package Deal includes:
• TEP-3 Heavy-Duty Hand Press Machine (Made in Europe, deep frame, sphero cast iron, stop screw protects Coartplast & corrugated cardboard, interchangeable dies, up to #5 / 5/8”)
• #3 (7/16”) Self-Piercing Die Set
• #3 (7/16”) 12mm Long Neck 500 Sets Brass Grommets & Washers (continuous stock, fast shipping)

👉 For orders or inquiries, please Contact Us
👉 For installation tips, visit our MICRON YouTube
👉 Explore all self-piercing grommets here

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Description

Our self-piercing brass grommets & washers – Size #3XL (7/16″, Extra-Long Neck – 12 mm) are designed for materials that are too thick for standard grommets. Each bag contains 500 complete sets (eyelet + washer) in Brass and Nickel finishes. Manufactured  from cartridge brass containing 70% copper and 30% zinc, these grommets deliver superior durability, malleability, and long-term performance in both indoor and outdoor applications.

These grommets are ideal for substrates up to 10 mm thick. The extra-long neck ensures a secure fit without crushing or damaging the material. This makes them a trusted solution for sign makers, banner shops, and textile professionals.

Installation is fast and efficient. They pierce and set in one motion when used with MICRON® machines. This saves time and improves productivity compared to conventional grommets.

The durable construction ensures reliability in indoor and outdoor environments. With finishes available in Brass and Nickel, these grommets provide both strength and a professional look.

Applications

SPGW #3XL grommets are commonly used in signs, banners, coroplast sheets, vinyl, woven polyester, foam board, tarps, tents, and industrial fabrics. They are the go-to choice when working with extra-thick materials.

Note

These grommets pierce and set in one step on most substrates. However, they do not cut through very dense materials such as polyester webbing or elastic. In those cases, a hole-piercing die is required.

Order With Confidence

Fast shipping from U.S. warehouse.
Competitive bulk and retail pricing.
Wide range of grommets, washers, tools, and dies.
MICRON® America – trusted quality since 1995.

👉 For installation tips, visit our MICRON® America – YouTube.
👉 For bulk orders or distributor inquiries, please Contact Us.