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?
Taptite®
The unique “tri-lobular” shape roll forms a mating thread in an unthreaded pilot hole.
Cyclone®
Stripping problems & scrap loss reduced with the unique serrated shoulder under head.
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
A curve added to the helix of the threads keeps the screw secure for life, eliminating prevailing torque nuts & nylon patches.
GX®
The eccentric thread section extrudes thin sheet metal upward and downward increasing the thread engagement area and torque absorption capability.
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
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®
A double lead high and low thread form increases performance in low density material.
Hi-Lo Plus®
Sharper angles on the threads penetrate deeply without weakening plastic materials through stress-caused fracturing.
Plastite®
Tri-lobular thread rolling screw for plastics.
