• Clamp Levers


Plastic Clamp Levers - Spring Washer Integrated Type

Dimension Drawing

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type寸法図



M (Coarse)
Nominal of Thread

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch Lm W H H' h s T D d Ds ts Dw tw s1 Tooth No. Max. Load*1
Max. Clamping Force*1
Add to Cart
LUDM-67-8-40-W-BK M8 1.25 40 67 30 34 31 2 20.8 19 13.5 15.4 2 16 0.8 6 24 230 7 51 BK 8.55 CAD Cart

*1: About the definition of max. load / max. clamping force ⇒Using the Clamp Lever / Tension Lever

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Lever Part Nylon 6 (Various Color)
Thread Part SUM22L
Ferrosoferric Oxide Film (Black)
Spring Washer SUS304
Plain Washer SUS304
Setscrew Steel
Ferrosoferric Oxide Film (Black)
Serration Ring Zinc Die Cast
Spring Stainless Steel Wire


  • Double arm type plastic clamp lever with spring washer.
  • This eliminates the need to mount spring washers.
  • The special shape of the plain washer holds the spring washer captive.
  • The plain washer can be rotated along the thread ridges and removed. The spring washer can be replaced with a different washer component.

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type

  • Designed to incorporate the 7 principles of Universal Design. The shape allows easy operation and application of force.
  • Universal Design ⇒Universal design UDEX® series
  • Rotating radius is about half that of conventional plastic clamp levers. Space-saving.
  • The zinc die cast serration ring is inserted into the plastic lever main unit. It achieves sufficient fitting strength with the metal screw serrations.
  • Five color variations support the color universal design of machines and devices. Two-tone color: dark gray and various colors.
  • Lever part colors can be selected by the end symbol of the part number.
End Symbol Lever Part Color
BK Matte Black
SG Matte Silver
OR Matte Orange
BL Matte Blue
YW Matte Yellow

Only takes a minute to understand! How to Use Clamp Levers.

Precautions for Use

Before tightening the lever, make sure that the plain washers are located at the relief cut section as shown in Fig. 1. Tightening the plain washer while hooked on the screw thread as shown in Fig. 2 may cause the plain washer to be deformed.

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type

Usage Example

Can be used for tightening slotted holes.

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type

Nominal of thread for slotted hole widths should be +0.5 mm or less.

Related Products

Plastic LUDM clamp levers without spring washers are available.

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type

Plastic LUDM-LW clamp levers with plain washers are available.

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type

Plastic LUDM-LWP clamp levers with flat washers for slotted holes are available.

LUDM-WPlastic Clamp Levers - Spring Washer Integrated Type

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