Main Content

Skip main content and go to support content | Skip page content and go to content info

Solutions: Specialty Threaded Nuts & Bolts

Plastite® Thread-Forming Fastener

Eliminates need for inserts and lock washers!

The Plastite® 48 fastener combines a unique tri-lobular body with a 48º thread profile to maximize performance and reliability. Two thread-forming styles are available to meet the specific requirements of a wide range of thermoplastics.

Diagram of Plastite FastenersAdvantages

  • Reduces possibility of boss failure
  • Increases product reliability
  • Eliminates need for inserts and lock washers


Features and Benefits

Tri-roundular configuration allows displaced material to cold flow back into relief areas

  • Minimizes radial stress
  • Reduces possibility of boss failure
  • Eliminates need for inserts and lock washers
  • Allows design of thinner bosses

How Plastite Works48º thread profile allows threads to penetrate deeply into plastic

  • Generates strong mating threads
  • Resists vibration loosening
  • Reduces probability of strip-out and pull-out

Twin lead design and steep helix angle provides greater shear area in softer plastics (with a flexural modulus up to 850,000 p.s.i.)

  • Increases holding power
  • Allows faster seating of fastener

Single lead design and narrow helix angle lowers drive torque and failure torque in stiffer thermoplastics (with flexural modulus between 850,000 and 1,300,000 p.s.i.)

  • Creates less stress on the boss


Sizes #00-5/16”. Other sizes available on request
Head Styles Can be used with any external or internal head designs; pan, hex washer, and flat styles standard
Drive System Can use any system
Finish As required