> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Split Key Ring Attachment - 20mm (pack of 50)

**Type:** Product page · **SKU:** KT-2291 · **Brand:** [Kitronik](https://core-electronics.com.au/brands/kitronik-australia)
**Page:** https://core-electronics.com.au/split-key-ring-attachment-20mm-pack-of-50.html ([markdown](https://core-electronics.com.au/split-key-ring-attachment-20mm-pack-of-50.html.md))

These standard split keyring attachments are made from carbon spring steel and are supplied as a pack of 50. They have an inside diameter of 17.2mm, an...

## Pricing

- **Price:** $17.95 (inc GST) — $16.32 AUD, exc GST
- **Quantity discounts:** 10+ $15.66 (exc GST) · 25+ $15.17 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Oct 20 and Oct 22.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=KT-2291:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/KT-2291:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

These standard split keyring attachments are made from carbon spring steel and are supplied in a pack of 50. They have an inside diameter of 17.2mm, an outside diameter of 20mm, and a ring thickness of 2.6mm.

Kitronik have created several kits now that serve as keyring items, such as this [Torch Ice Lolly Enclosure](https://kitronik.co.uk/blogs/resources/ice-lolly-enclosure-led-keyring-torch), and we also have project kits that lend themselves to being popped onto a keyring, such as the [Kitronik Solar Torch Kit](https://kitronik.co.uk/products/2175-kitronik-solar-torch-kit). Keyrings are always super helpful to have on hand as you never know when you might need one!

Carbon spring steel is both durable and pliable with a high degree of strength and as such is known as general-use steel. It is also resistant to corrosion/rusting, making it an ideal choice for items that will be used daily and that need to last.

Typically, these rings are used for keyrings but they are also sometimes used as cotter rings that can be used to secure things such as clevis pins, turnbuckles, and rigging screws. They are sometimes a better option than cotter pins as the rings can be reused as they don't need to be bent after fitting to hold firmly in place.

### Features:

- Standard split carbon spring steel keyrings.
- Constructed to be strong, long-lasting and resistant to corrosion.
- They have an inside diameter of 17.2mm, an outside diameter of 20mm, and a ring thickness of 2.6mm.
- They are ideal for keyrings but they can also double as cotter rings.

### Contents:

- 1 x Split Key Ring Attachment - 20mm (pack of 50).

### Dimensions:

- Inside Diameter: 17.2mm.
- Outside Diameter: 20mm.
- Ring Thickness: 2.6mm.

### Requires:

- These keyring attachments can be used with some of our project kits, such as;
- [Kitronik White LED Keyring Torch Pre-built](https://kitronik.co.uk/products/35160-kitronik-white-led-keyring-torch-pre-built).
- [Kitronik Solar Torch Kit](https://kitronik.co.uk/products/2175-kitronik-solar-torch-kit).

### Resources:

- The following resources feature keyring attachments:
- [Torch enclosure resource.](https://kitronik.co.uk/blogs/resources/ice-lolly-enclosure-led-keyring-torch)
- [USB Rechargeable Torch enclosure resource](https://kitronik.co.uk/blogs/resources/making-an-enclosure-for-the-usb-rechargeable-torch-kit).

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/K/T/KT-2291-1.jpg)