CNC Lead Screw 8mm x 300mm, Lead 14mm, 7-Start (Without Nut)
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Prices updated: 14 Oct 2026
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About this product
A 300 mm stainless steel lead screw with an 8 mm diameter and 7 thread starts. It has a 2 mm pitch and a 14 mm lead, meaning the nut travels 14 mm per screw revolution. It is used to convert rotation into linear motion on 3D printer and CNC axes. This listing is the screw only, and a matching nut is required.
Specifications
- Material
- Stainless steel / ستانلس ستيل
- Diameter
- 8 mm / 8 مم
- Length
- 300 mm / 300 مم
- Pitch
- 2 mm / 2 مم
- Lead
- 14 mm / 14 مم
- Number of starts
- 7 / 7
- Included
- Screw only, nut not included / اللولب فقط دون صامولة
Frequently asked questions
Does this listing include the nut?
No. The listing is the lead screw only, as the title states. You need a nut that matches the 8 mm diameter, 2 mm pitch and 7 starts (14 mm lead).
Why is the lead 14 mm when the pitch is 2 mm?
Lead equals pitch multiplied by the number of starts. With 7 starts, 2 mm × 7 = 14 mm of linear travel per revolution. Pitch is the groove spacing, while lead is the travel per turn.
