Both materials can work well; the better pick depends on your project.

• Plastic (resin) snaps: Lightweight, won’t rust, come in lots of colors, and are popular for apparel, baby items, bags, and crafts. They’re generally comfortable against skin and install with snap pliers.
• Metal snaps: Often chosen where there’s higher tension, frequent pulling, or heat exposure (like outerwear or gear). They can offer a firmer hold on heavy fabrics.

On Walmart.com you’ll find plastic-only kits and mixed kits. Consider your fabric weight, care routine, and the tools you have. If you’re unsure, testing on a scrap can help you see which option feels more secure for your project.

You’ll see a few names used for these fasteners.

• Plastic snap fasteners or plastic snap buttons
• Resin snaps (often the colorful, no-sew style)
• No-sew snaps or press studs (installed with snap pliers)
• Sew-on plastic snaps (clear, stitched through holes rather than pressed)

Sizes are commonly listed as T-sizes with cap diameters, such as T3 (10 mm), T5 (12 mm), and T8 (15 mm). Product titles on Walmart.com typically include these details, so you can quickly match your tools and project needs.

A few small adjustments can help improve the connection.

• Match size and dies: Use the correct plier dies for your snap size (e.g., T3, T5, T8).
• Check alignment: The cap post should pass cleanly through the fabric and meet the socket or stud squarely. Pre-pierce with an awl if needed.
• Use even pressure: Squeeze the pliers firmly and steadily so the post flares evenly.
• Mind fabric thickness: Thick stacks can prevent the post from flaring; very thin fabric may benefit from a small stabilizer piece.
• Inspect parts: If a piece deforms, swap it for a fresh cap or socket.

Trying a few installs on scrap fabric can help dial in placement and technique before you work on the final item.

Most plastic snap kits list the snap by T-size and cap diameter.

• T3 – around 10 mm caps; often chosen for lighter fabrics.
• T5 – around 12 mm caps; a versatile everyday size for apparel and crafts.
• T8 – around 15 mm caps; commonly selected for thicker materials.

Clear, sew-on plastic snaps are also sold in diameters like 7 mm, 10 mm, and 15 mm. Check your pliers for compatibility notes (many list T3/T5/T8). On Walmart.com, product listings typically call out the size and how many sets are included, so you can choose the quantity and fit that align with your project.

Yes, many crafters use plastic snaps on thicker fabrics, with a few considerations.

• Choose a larger size: T8 (about 15 mm) snaps are frequently selected for thicker materials.
• Tool fit: Confirm your pliers support the size you’re using (some note T3/T5/T8).
• Prep the layers: Avoid bulky seams right at the snap point and pre-pierce with an awl for cleaner alignment.
• Do a test: Try one on a scrap to gauge hold and comfort.

For very heavy or high-stress applications, a metal snap may be more suitable. Walmart.com offers plastic, metal, and mixed kits, so you can choose what fits your fabric and intended use.