THK BLK4040-3.6ZZ Rolled Ball Screw Nut


Only 1 left in stock

THK BLK4040-3.6ZZ / BLK4040D rolled ball screw nut. 40mm, no preload. Replaces THK BLF 4040. “THK” stands for “Toughness,” “High Quality,” and “Know-how.” 

Request More Information

CNC Router Part Request

For a fast and easy CNC router part request, send us a message using the form provided.

SKU: BLK 4040-3.6 ZZ Category: Brand:


THK Bearings, THK BLK4040-3.6ZZ / BLK4040D 40 mm rolled ball screw nut. 

  • Precision grade
  • Full ball
  • No preload
  • Large lead
  • Replaces THK BLF 4040

The details of the product options differ according to the THK ball screw nut model number.

Additional information

Weight5 lbs
Dimensions5 × 4 × 4 in


Screw shaft outer diameter

40 mm


40 mm

Ball center-to-center diameter

41.75 mm

Thread minor diameter

35.2 mm






BLK 4040-3.6 ZZ


BLK 4040-3.6 ZZ

Same Day Shipping Available

Most in-stock CNC router parts and accessories ship the same day from our warehouse in San Diego, California. Order by 2 pm (14:00) Pacific Standard Time Monday – Friday for same day shipping on most items. 

CNC Parts Dept., Inc. Supports American Manufacturing

We strive to keep our customers up and running. Our goal is to shorten any production downtime as much as possible. If you have any questions, contact us by phone or send us a message on our website. Our office hours are 6:00 AM – 5:00 PM PST Monday – Friday.