> **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

# 2904 Series Hole Reducer (1/4" ID x 14mm OD) - 2 Pack

**Type:** Product page · **SKU:** GB-2904-1025-0014 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/2904-series-hole-reducer-14-id-x-14mm-od-2-pack.html ([markdown](https://core-electronics.com.au/2904-series-hole-reducer-14-id-x-14mm-od-2-pack.html.md))

This 14mm to ¼” hole reducer allows you to integrate components that use imperial hardware with goBILDA. For example, much of the camera.....

## Pricing

- **Price:** $4.20 (inc GST) — $3.82 AUD, exc GST
- **Quantity discounts:** 10+ $3.63 (exc GST) · 25+ $3.44 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 02 and Sep 07.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GB-2904-1025-0014:1` (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-2904-1025-0014:1.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 14mm to ¼” hole reducer allows you to integrate components that use imperial hardware with goBILDA. For example, much of the camera market is based around ¼-20 hardware, from tripods to suction cups to camera mounts and plates. These reducers can be used individually on the reverse side of the item that you’re attaching so that, when the ¼-20 bolt that passes through is tightened down, it sandwiches the channel or component that it is resting within. Alternatively, they can be used in pairs, one on each side, in situations where the item that you’re attaching doesn’t provide adequate surface area to create that ‘sandwich’. Given the adaptors have a 1mm protrusion, two can be used on a channel, leaving 0.5mm between the surfaces so that they can provide excellent clamping force when the screw passing through is tightened.

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/2904-1025-0014_41927e7cfa.zip)

### Specs

| Weight | 2.2g Each |
|---|---|
| Material | Steel |
| Finish | Zinc-Plated |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-2904-1025-0014-1.jpg)