# O Ring – Brass: 13 mm

- **Brand:** Pet Hardware®
- **SKU:** 7B/13
- **EAN:** 8595109509445
- **Category:** Saddlery Hardware > O-Rings
- **Material:** Brass sand casting
- **Surface finish:** Polished
- **Size / inner width:** 13 mm
- **Weight:** 4 g
- **Minimum order:** 10 pcs
- **In stock:** Yes


## Description and construction

Quality cast brass ring, of highest possible strength and resistance to deformation. Excellent for haberdashery, saddlery, and dog accessory production. Most commonly used as a suspension, connection, or tie-down component. Ideal for making dog collars, horse bridles, purses, bags, and belts. Choose from sizes 13–50 mm.

TIP: Brass naturally oxidizes and darkens over time – it’s not a defect, just the metal reacting with air. You can restore its shine with #SITOL300G paste. To prevent darkening, apply the clear lacquer #637005/GLOSSY.


## Limits and maintenance

* The finish does not increase corrosion resistance. Either the underlying material does not need it, or the finish is purely aesthetic.
* Resists daily use even with active dogs. The surface holds its original appearance for a long time, even when in contact with straps, snaps or other hard surfaces.
* Over time loses its original gloss and the tone changes slightly. This does not affect function, but the surface eventually does not look as fresh as at the start.


## Parameters

| Parameter | Value |
|---|---|
| Inner ø | 13 mm |
| Wire diameter | 3.5 mm |
| Breaking load | 150 kg |

## Pricing (USD)

| Quantity | Excl. VAT / pcs | Incl. VAT (21 %) / pcs | Price type |
|---|---|---|---|
| 10 pcs | 0.828 USD | 1.002 USD | Basic |
| 50 pcs | 0.473 USD | 0.572 USD | Package tier |
| 2000 pcs | 0.426 USD | 0.515 USD | Carton tier |



*Prices incl. VAT apply to EU end customers. EU VAT-registered businesses and export orders are priced excl. VAT — see cart or ?currency= for your case.*



## Compatible products (fits 13 mm)

* **Transparent protective varnish 400 ml:** SKU 637005/GLOSSY
* **Sitol® Brass Polishing Compound:** SKU SITOL300G


## Available size variants (series 7B)

* 13 mm: SKU 7B/13 (this product)
* 16 mm: SKU 7B/15
* 20 mm: SKU 7B/20
* 25 mm: SKU 7B/25
* 30 mm: SKU 7B/30
* 33 mm: SKU 7B/35
* 40 mm: SKU 7B/40
* 50 mm: SKU 7B/50



## Links

- Product page: https://www.pethardware.com/en/rings/o-rings-brass-sand-casting-4827/
- Category: https://www.pethardware.com/en/rings/
- : http://blog.pethardware.com/en/haberdashery-rings-and-d-rings/