DIY Industrial Necklace: How to Transform Hardware into Unique Costume Jewelry

The world of costume jewelry is constantly evolving, moving away from traditional glitter toward more raw, architectural, and “brutal” aesthetics. Recently, renowned designer Rena Klingenberg shared a fascinating tutorial that proves beauty can be found in the most unexpected places—your local hardware store.

By repurposing copper washers and basic hardware components, you can create a high-impact DIY Industrial Necklace. This project is perfect for those who identify with steampunk, futuristic, or retro-grunge aesthetics. In this guide, we will expand on Klingenberg’s techniques to help you master this unique craft.

Why Choose Industrial Materials for Your Jewelry?

Using hardware components like copper washers isn’t just about cost-saving; it’s a style statement. The “Industrial Chic” movement in costume jewelry celebrates the honesty of materials. Copper, in particular, is beloved by artisans for its warm tones and the way it develops a unique patina over time.

Unlike factory-made pieces, a handmade industrial necklace carries a story of transformation. Whether you are looking to create a unisex piece or a bold “bib” style accessory, these materials provide a weight and texture that traditional beads simply cannot match.

Essential Materials and Tools

To execute this Costume Jewelry project with professional results, you will need the following components:

• Copper Washers (The Core):

  • 3 Large (23.81 mm / 15/16” OD)

  • 2 Medium (15.88 mm / 5/8” OD)

  • 3 Small (14.29 mm / 9/16” OD)

• Hardware & Findings:

  • 1 Pewter swivel clasp (1.25”)

  • Heavy-duty jump rings in Aged Brass (15mm and 12mm)

  • Antique Copper jump rings (10mm and 6mm)

  • Aged Brass curb chain (9” length)

• Professional Tools: Flat-nose and chain-nose pliers are essential for opening and closing heavy-gauge jump rings without marring the metal.

Step-by-Step Construction: The “Bib” Section

1. Laying the Foundation

Start by arranging your three large and three small copper washers on a flat surface. This “bib” section is the focal point of your necklace. Using your pliers, open the 12mm aged brass jump rings with a side-to-side twisting motion (never pull them apart, as this weakens the metal).

2. The Art of Connection

Join the washers according to your desired symmetry. For a professional look, ensure that all jump ring closures are tight and flush. This prevents the necklace from snagging on delicate fabrics like silk or wool.

3. Integrating the Swivel Clasp

Unlike traditional necklaces where the clasp is hidden at the back, this industrial design places the pewter swivel clasp at the front. It serves both a functional and decorative purpose, adding to the “mechanical” feel of the piece.

4. Adding the Chain

Once the 9” bib section is complete, attach the aged brass curb chain to both ends using the 6mm antique copper jump rings. This brings the total length to a standard 18” (45.7 cm), a versatile size for most necklines.

Advanced Finishing: Aging and Customization

One of the secrets to high-quality costume jewelry is the finish. If the copper washers look too “new” or bright for your taste, you can apply several aging techniques:

• Natural Oxidation: Simply leave the copper exposed to the air for several weeks. It will naturally darken and lose its mirror-like shine.

• Liver of Sulfur: For an immediate vintage look, artisans often use a liver of sulfur solution to create a deep, dark patina.

• Surface Texturing: Use a metal stamping kit to engrave letters, symbols, or dates into the large washers. This adds a layer of personalization that makes the piece truly one-of-a-kind.

Styling Your Industrial Masterpiece

Because this necklace has a “grunge” and “heavy” aesthetic, it pairs beautifully with minimalist outfits. Try wearing it over a plain white T-shirt or a black turtleneck to let the copper tones pop. For a more avant-garde look, layer it with thinner silver chains to create a mixed-metal effect.

This tutorial encourages us to look at our surroundings differently. By merging the world of professional costume jewelry with everyday hardware, you aren’t just making an accessory—you are reclaiming industrial objects and turning them into art.

👉 Working with raw metals like copper and brass is a great way to start your journey. If you want to learn more about the metals used in high-end pieces, read our guide on 14k vs. 18k Gold: The Secret Difference You Need to Know.

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