> **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

# Polycarbonate Clamping Collar (8mm REX™ Bore) - 4 Pack

**Type:** Product page · **SKU:** GB-2923-1024-4008 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/polycarbonate-clamping-collar-8mm-rex-bore-4-pack.html ([markdown](https://core-electronics.com.au/polycarbonate-clamping-collar-8mm-rex-bore-4-pack.html.md))

Lightweight and balanced, this 8mm REX™ Bore Polycarbonate Clamping Collar provides a low-cost, non-marring solution for component.....

## Pricing

- **Price:** $7.95 (inc GST) — $7.23 AUD, exc GST
- **Quantity discounts:** 10+ $6.86 (exc GST) · 25+ $6.51 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 3500 more in 7–10 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GB-2923-1024-4008:1` (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/GB-2923-1024-4008:1.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

Lightweight and balanced, this 8mm REX™ Bore Polycarbonate Clamping Collar provides a low-cost, non-marring solution for component constraint on 8mm REX™ shafts and standoffs. The built-in shim allows you to run it directly against a bearing without binding the inner race, and the hex capture nuts allow you to install it with only one tool.

Thanks to a two-piece construction that allows this collar to come apart, you can go all the way into the depths of your robot and adjust the shaft-collar attachment without dealing with any of the other components on the shaft!

This 4 Pack includes four collars.

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/2923-1024-4008_8520393dc1c.zip)
- [ Spec Sheet ](https://core-electronics.com.au/attachments/localcontent/2923-1024-4008_spec-sheet_144621b3b23.pdf)

### Specs

| Weight | 9.9g Each with Hardware |
|---|---|
| Material | Polycarbonate Plastic |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-2923-1024-4008-1.jpg)