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Lectra Products Company is clearly the preferred source for knob fasteners and other steel retainer springs used by automotive, electronic, and home appliance manufacturers. Our quality system is registered to the ISO9002 quality standard, including the auto industry's stringent QS9000 requirements.

Our exclusive designs include Compression Rings, D-shaped retainer springs, U-nuts, J-nuts, flat springs and special locking knob fasteners. This comes in 3 different finishing, mainly, Oiled as Tempered finish, Zinc Phosphate/Oil finish and Painted finish.

Product Line

 

D-Springs



Our most popular style of Knob Spring, available in the greatest variety of stock sizes. Make your selection by part number from a wide range of English (inch) or Metric (millimeter) sizes.

 
D-Springs with Barbs



Identical to the "D"-springs above, but with sharp barbs added to the corners of the flat side to lock the spring securely into the knob cavity.

Double Flat Springs
 


These springs fit some unusual types of control shafts which have two flats located opposite one another.

 
  Flat Springs
 


Flat springs hold the knob in place by applying spring pressure to just one side of the shaft. Since the spring does not encircle the shaft, one size can work with many different shafts and knobs.

 
  Hi Torque Springs
 

This distinctively-shaped spring is favored by many in applications where higher torque forces will be applied to the knob.

 

 
  Locking Springs
 


Though easily removed by means of a special tool, these springs hold the knob very securely to the shaft. Especially useful for "Push-Pull" knob applications.

 
  Springs for Round, Slotted, and Knurled Shafts
 


Here's a variety of springs designed to secure knobs to round, slotted and knurled shafts.

 

 
  Square and Rectangular Springs
 



As the title implies, these springs are for use with square and rectangular control shafts.
  Compression Rings
 


These reinforcing rings apply pressure uniformity around the outside of the knob cavity, which reinforces the plastic while securing the knob in place.
  U & J Fasteners
 


A locking press-fit to a flange or edge allows speedy assembly of just about anything, including automotive assemblies, dashboards, door panels, etc.

 
  Spring Washers for Studs
 

An assortment of fasteners designed to allow quick, press-together assembly of just about everything else.
 
 

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