The T8 Lead Screw you’ve mentioned has the following specifications:
You can find this T8 Lead Screw on platforms like AliExpress where it’s priced at $3.75 each for quantities of 10 or more. Additionally, there’s an extra 5% off with coins and free shipping for orders over $10. Fast delivery is expected by April 24, and there’s a delivery guarantee. If there are any delays, you can use a coupon code for compensation.
For those who prefer Amazon, there’s a similar 300mm Trapezoidal Lead Screw with an 8mm pitch and 2mm lead, along with a brass nut, available for purchase.