Contact Information

2550 S 27th Avenue
Broadview, IL 60155 

W6331 Bee Rd 
Watertown, WI 53098 

Lock Washers
3704 N Palmer Rd 
Milwaukee, WI 53212 

W6331 Bee Rd 
Watertown, WI 53098 

Shakeproof Design Guide

Tips for investigating a Fastener Problem:

Get as much information as possible:

  • Where and how are the parts used?
  • Have you bought these parts for a long time?
  • Are you the sole customer of this part?
  • Request samples of failed parts
  • Are unused parts available from the same lot?  If yes, request some.
  • How many parts are used in the assembly?
  • Is there any pattern to the failures – for example, are they failing in a single location?
  • What type of driver is being used?
  • What torque value is being used to install the parts?
  • Request pictures of failed parts and the assembly
  • If possible, allow the supplier to visit and observe the problem first-hand.
  • How best would you describe the problem?
  • Has anything recently changed or something unique occurred?
tap r Tap/R® A graduated thread rolling area, less driving torque is required to install this 360 degree thread forming screw.
taptite Taptite® The unique "tri-lobular" shape roll forms a mating thread in an unthreaded pilot hole.
cyclone Cyclone® Stripping problems & scrap loss reduced with the unique serrated shoulder under head.
hurricane Hurricane® Serrations under the head creates a positive torque brake when this anti-strip screw is driven into thin sheet metal, aluminum or plastic.
  Field Ready™ Tunable torque design allows screws to be shipped in the "Field Ready" position.
shakeproof thread Shakeproof™ Thread A curve added to the helix of the threads keeps the screw secure for life, eliminating prevailing torque nuts & nylon patches.
gx self extruding GX® The eccentric thread section extrudes thin sheet metal upward and downward increasing the thread engagement area and torque absorption capability.
thread cutting Thread Cutting Screws A shank slot in the body of the screw provides true cutting action eliminating a separate tapping operation generating a perfectly mated thread that is reusable. 

Designing Threaded Fasteners in Plastic

boscrew BosScrew™ A screw for plastics that will not loosen! The pressure flanks on threads are engineered to not loosen over time, with temperature changes, under vibration.
hi lo Hi-Lo® A double lead high and low thread form increases performance in low density material.
hi lo plus Hi-Lo Plus® Sharper angles on the threads penetrate deeply without weakening plastic materials through stress-caused fracturing.
plastite Plastite®  Tri-lobular thread rolling screw for plastics.


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