Will this work as a replacement T8 screw for the Ender 3?

sorry yes this is a 4 start screw good for dual z application on the ender 3

Is the coupler 8mm to 5mm? It looks like it in the picture, but does not say anywhere.

yes mine was, they should mention that in the description but be aware, they could change couplers from when I got mine. I'd say get this kit but be ready to get a coupler just in case.

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300mm 8mm T8 Lead Screw Set Lead Screw+ Copper Nut + Coupler+Hexagon Wrench + Pillow Bearing Block for 3D Printer

300mm 8mm T8 Lead Screw Set Lead Screw+ Copper Nut + Coupler+Hexagon Wrench + Pillow Bearing Block for 3D Printer

Product ID: 140226685

Details

Brand
MOTOU
Color
Silver Brass
Fastener Type
Flange
Material
Brass Steel
Size
One Size

📏300mm precision length

⚙️8mm stainless steel lead screw

🛠️Complete 6-piece installation kit

Description

⚙️ Elevate your 3D printing game with precision and durability you can trust!

DURABLE RUSTPROOF BUILD - Stainless steel screw and brass nut combo ensures long-lasting, maintenance-free performance.
OPTIMIZED LOAD CAPACITY - Engineered for large mechanical advantage and heavy load handling without compromising speed.
PRECISION LINEAR MOTION - Experience ultra-smooth, accurate Z-axis control for flawless 3D prints every time.
WHISPER QUIET OPERATION - Low friction design minimizes noise and vibration, perfect for professional-grade 3D printing environments.
ALL IN ONE INSTALLATION KIT - Includes lead screw, copper nut, coupler, pillow bearing blocks, and hex wrench for seamless setup.

This 300mm T8 lead screw set features an 8mm stainless steel screw paired with a brass nut, designed for precise and smooth linear motion ideal for 3D printer Z-axis applications. The rustproof materials and low-friction design ensure long service life and quiet operation. The package includes all necessary components—copper nut, coupler, pillow bearing blocks, and hex wrench—making it a complete, ready-to-install solution for enhanced mechanical performance.

Specifications

ASIN	B07S1LKMQ6
Best Sellers Rank	#825,574 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #128 in Linear Motion Lead Screws
Brand	MOTOU
Color	Silver, Brass
Compatible Groove Diameter	8 millimeters
Customer Reviews	4.4 4.4 out of 5 stars (164)
Fastener Type	Flange
Finish Types	Stainless Steel" or "Passivated
Item Diameter	8 millimeters
Item Shape	Round
Manufacturer	MOTOU
Material Type	Brass, Stainless Steel
Model	leadscrewset1
Number Of Items	6
Number of Pieces	6
Outside Diameter	36 millimeters
Part Number	leadscrewset1
Screw Head Style	Hex
Set Name	T8 Lead Screw Set (300mm)
Size Name	One Size
Thread Size	M8
UPC	791300576783
Unit Count	6 Count

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