> **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 # Screw Terminal Block: 2-Pin, 3.5 mm Pitch, Side Entry (4-Pack) **Type:** Product page · **SKU:** POLOLU-2444 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/screw-terminal-block-2-pin-3-5-mm-pitch-side-entry-4-pack.html ([markdown](https://core-electronics.com.au/screw-terminal-block-2-pin-3-5-mm-pitch-side-entry-4-pack.html.md)) These side-entry screw terminal blocks have a pitch of 3.5 mm (0.138″). Each block has two terminals for the stripped ends of 24 – 18 AWG wires, and units can slide together to make longer strips. They are rated for 125 V, 10 A (UL) and ship in packs of four. ## Pricing - **Price:** $3.20 (inc GST) — $2.91 AUD, exc GST - **Quantity discounts:** 10+ $2.79 (exc GST) · 25+ $2.71 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 4 today, and up to 120 more in 4–7 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-2444:1` (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/POLOLU-2444:1.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 terminal blocks have terminals that hold and release wires through the simple adjustment of a screw, allowing you to easily make temporary connections to a PCB. The 2-pin and 3-pin units each feature a ridge on one side and a slot on the other, which lets them slide and lock together to form arbitrarily long strips with a pitch of 3.5 mm or 5 mm. Each terminal block is available in two orientations: side-entry and top-entry. The following short video gives a quick overview of how to install these terminal blocks onto Pololu's boards: **Details for item #2444** This product is a four-pack of 3.5mm-pitch, two-pin, side-entry terminal blocks. The more general dimension diagram for an XX-pin version of this screw terminal block is shown below. | [ ![](https://core-electronics.com.au/attachments/localcontent/0J11226_44708f23a08.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J11226_76889f18eea.png) | |---| | Screw terminal block: 3.5 mm pitch, side entry dimensions. | - Voltage rating (UL/IEC): 125/130 V - Current rating (UL/IEC): 10/10 A - Contact resistance: 20 mO - Wire gauge: 24-18 AWG - Wire strip length: 5 mm **Other terminal block options** Pololu carries several different sizes and styles of terminal blocks in addition to these stackable screw terminal blocks; the picture below shows a side-by-side comparison: | [ ![](https://core-electronics.com.au/attachments/localcontent/0J6547_52532c5fc77.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J6547_173484d3323.jpg) | |---| | Side-by-side comparison of Pololu's different terminal blocks with a 0.1" male header strip for size reference. From left to right: 0.1" screwless, 0.1" screw, 3.5 mm screw, and 5 mm screw. | - [Screwless (spring) terminal](https://core-electronics.com.au/category/175/screwless-terminal-blocks), available in side- and top-entry orientations with pitches of 0.1" and 0.2": - [0.1" screw terminal](https://core-electronics.com.au/category/177/0.1-2.54-mm-screw-terminal-blocks), which can be used in place of standard 0.1" male and female headers on many PCBs; the only available orientation is side-entry: **People often buy this product together with:** | [ ![0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black](https://core-electronics.com.au/attachments/localcontent/0J6370_2747ad6d8f.jpg) ](https://core-electronics.com.au/0-100-2-54-mm-breakaway-male-header-1x40-pin-straight.html) | [0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black](https://core-electronics.com.au/0-100-2-54-mm-breakaway-male-header-1x40-pin-straight.html) | |---|---| | [ ![0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack](https://core-electronics.com.au/attachments/localcontent/0J1597_3580ef0a45.jpg) ](https://core-electronics.com.au/0-1-2-54mm-crimp-connector-housing-1x2-pin-25-pack.html) | [0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack](https://core-electronics.com.au/0-1-2-54mm-crimp-connector-housing-1x2-pin-25-pack.html) | |---|---| | [ ![Female Crimp Pins for 0.1" Housings 100-Pack](https://core-electronics.com.au/attachments/localcontent/0J2472_35509fe5b9.jpg) ](https://core-electronics.com.au/female-crimp-pins-for-0-1-housings-100-pack.html) | [Female Crimp Pins for 0.1" Housings 100-Pack](https://core-electronics.com.au/female-crimp-pins-for-0-1-housings-100-pack.html) | |---|---| **Dimensions** | Pins: | 2 | |---|---| | Spacing: | 3.5 mm | **General specifications** | Wire gauge: | 24-18 AWG | |---|---| | Current rating: | 10 A[1](https://core-electronics.com.au/#note1) | | Voltage rating: | 125 V[1](https://core-electronics.com.au/#note1) | | Contact resistance: | 20 mO | | Wire strip length: | 5 mm | | Terminal type: | screw | | Orientation: | side entry | **Notes:** 1 UL rating. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/s/c/screw_terminal_block_2_pin_3.5_mm_pitch_side_entry__4_pack___pololu_2444__00.jpg)