> **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

# 2910 Series Aluminum Clamping Collar (8mm ID x 21mm OD, 9mm Length)

**Type:** Product page · **SKU:** GB-2910-0921-0008 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/2910-series-aluminum-clamping-collar-8mm-id-x-21mm-od-9mm-length.html ([markdown](https://core-electronics.com.au/2910-series-aluminum-clamping-collar-8mm-id-x-21mm-od-9mm-length.html.md))

This 8mm bore aluminum clamping collar provides a non-marring fastening mechanism that creates a super-tight hold on a shaft. The compact.....

## Pricing

- **Price:** $8.45 (inc GST) — $7.68 AUD, exc GST
- **Quantity discounts:** 10+ $7.30 (exc GST) · 25+ $6.91 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 1100 more in 7–10 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GB-2910-0921-0008:1` (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-2910-0921-0008:1.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

This 8mm bore aluminum clamping collar provides a non-marring fastening mechanism that creates a super-tight hold on a shaft. The compact outer profile minimizes the clearance diameter so other parts can be fastened in close proximity without coming in contact.

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/2910-0921-0008_3872399e806.zip)

### Specs

| Weight | 8.0g |
|---|---|
| Material | Aluminum |
| Finish | Clear Anodized |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-2910-0921-0008-1.jpg)