Sew-On Buttons and Metal Backs: Types, Materials and How to Choose
Understand the differences between sew-on shank buttons, wire loop back buttons, flat metal backs and sewing snap buttons. A complete selection guide.
While snap buttons and press fasteners get most of the attention, traditional sew-on buttons and their metal back components remain essential in garment construction. Understanding the different types helps you select the right combination for each application.
Types of Sew-On Buttons
Brass Sew-On Shank Buttons
Brass shank buttons feature a small loop (shank) on the back through which thread is passed. Made from brass material for corrosion resistance, they are especially suitable for use with thin fabrics. Compared to alloyed alternatives, brass shank buttons are lighter, making them comfortable for everyday garments like shirts, blouses, and light jackets.
Alloyed Sew-On Buttons
When a heavier, more substantial button is needed, alloyed (zamak) sew-on buttons are the choice. They can feature intricate designs on the face and are commonly used on blazers, coats, and designer garments. The alloy material allows for detailed logo engraving and complex surface textures.
Sewing Snap Buttons
Sewing snap buttons combine the snap closure mechanism with hand-sewn attachment. Made from brass material without phthalate or PVC in the top part, they are a safe choice for children clothing, baby wear, and garments where machine pressing is not possible or desired.
Metal Backs Explained
Brass Flat Metal Backs
Flat metal backs serve as the foundation for button assemblies. Made from corrosion-resistant brass, they are suitable for use with thin fabrics and lighter than alloyed alternatives. The flat surface allows for assembly of polyester, wood, acrylic stones, and other decorative materials on top.
Wire Loop Back Buttons
Wire loop backs feature a wire loop on the underside instead of a flat surface. This design allows for easy sewing attachment while supporting various top materials. Like flat metal backs, they can accept polyester, wood, and acrylic stone tops, making them versatile for creative button designs.
Choosing Between Button Types
The right button depends on several factors:
- Fabric Weight: Light fabrics pair best with brass shank buttons; heavy fabrics can support alloyed options
- Design Requirements: Need a logo or pattern? Alloyed buttons offer more design possibilities
- Attachment Method: Hand-sewn garments need shank or wire loop types; machine attachment suits snap buttons
- Budget: Brass options are generally more affordable than alloyed alternatives
- Safety: For children wear, ensure buttons are phthalate and PVC-free
Custom Button Solutions
At Ata Buttons, we offer custom button manufacturing with your choice of material, size, shape, and finish. Whether you need classic brass shank buttons for a shirt line or custom-engraved alloyed buttons for a designer collection, our Istanbul factory can deliver consistent quality at wholesale prices.
Button & Metal Back Types
| Product | Attachment | Material | Use |
|---|---|---|---|
| Brass shank button | Sew-on (shank loop) | Solid brass | Blazers, coats |
| Alloyed shank button | Sew-on (shank loop) | Zamak alloy | Fashion, decorative |
| Brass flat backs | Wire loop rear | Brass | Covered buttons base |
| Iron flat backs | Wire loop rear | Iron | Budget covered buttons |
Browse our complete buttons and metal backs collection. For fabric-covered buttons, flat metal backs serve as the foundation — see our covered button guide.
Looking for Quality Metal Accessories?
Ata Buttons manufactures over 15 million metal accessories daily with ISO and OEKO-TEX certifications. Request samples for your next project.
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