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Lead Screw・Nut

The smallest nut and lead screw in the world by TNK.
Lead screw size is 0.6~4.0mm. Our smallest nut and lead screw support your compact units and weight saving.
With our nuts and lead screws, the backlash can be adjusted to 2 μm or less, and excellent positioning accuracy can be achieved.
We have also developed "Sanwa Special Resin Nuts" for the low friction and high durability.
* Sanwa Special Resin: PPS (containing carbon fiber, etc.) [Patent pending]
   It achieved running over 50km continuously loading 2.5 kg weight with a φ3 lead screw


  nut&screw_0.6.jpeg   nut&screw_pitchtipe.jpg  nut&screw_resintipe.jpg
Minimal nut and screw

 Outer diameter:0.5mm




 Material:PPS(TNK special resin)

Big pitch screw

 Outer diameter:3mm




 Material:PPS(TNK special resin)

Small pitch screw

 Outer diameter:1、2、3、4mm



Variety Nut material

 Material:PA66、PPS(TNK special resin)



Tolerance and Size

  研削リードスクリュー 切削リードスクリュー 転造リードスクリュー
  Grinding Turning Rolling
Outer diameter tolerance ±0.002mm ±0.02mm ±0.02mm
Flank surface roughness Ra0.1 Ra0.8 Ra0.8
Single pitch error 0.005mm 0.01mm 0.01mm
Cumulative pitch error(10pitch) 0.008mm 0.02mm 0.02mm
Run out 0.02mm or less 0.05mm 0.05mm
Outer diameter φ0.5~20.0 φ1.7~4.0 φ1.7~3.5
Length 3.5mm~200.0mm 3.5mm~100.0mm 10.0~70.0mm
Shape 40°~60° 60° 40°~60°
Pitch 0.15mm~3.00mm 0.2mm~3.0mm 0.2mm~3.0mm
Material Hard material, Hardened steel Soft material Soft material


Tsukuba Plant achieve IATF16949.

(Site: Tsukuba Plant・Tsukuba Plant Building A)

(Scope: Manufacturing Micro shaft and Metal packing)

  • Sample・Spot order
  • For Factory in China
  • Looking for the Automotive parts