Fiberglass studs and nuts are ideal for applications requiring mechanical fasteners that must be non-corrosive, low in conductivity and/or transparent to electromagnetic waves. TPU (Isoplast®) Originally developed for medical use, TPU is available in long glass fiber-filled grades. TPU combines the toughness and dimensional stability of amorphous resins with the chemical resistance of crystalline materials. The long fiber reinforced grades are strong enough to replace some metals in load bearing applications. TPU is also sea water and UV resistant, making it ideal for underwater applications.Grades: 40% long glass-filled, 30% short glass-filled, 60% long glass-filled.

1/2" 13 - FIBREBOLT® Fiberglass Nuts

  • Thermoplastic Polyurethane, TPU 40% Glass filled: Unfilled 6960/48 and 40% is 27000/186.  Tensile Modulus is 21,800/150 and 45,0000/310.  Flexural strength is 9860/68 to 36000 /248.   Unlike most plastics TPU has an high Izod impact strength of 8 ft-ib/in or 427J/m.  TPU is used in automotive, industrial and sport-ing goods applications. 


    Fiberglass studs are machined from pultruded fiberglass vinyl ester rods. The hex shaped nut is thermoplastic. They are easily assembled with a standard six point socket wrench. Fiberglass studs and hex nuts are available in diameters of 3/8", 1/2", 5/8" and 3/4". The studs and nuts have UV inhibitors to provide resistance to ultraviolet degradation and corrosion.


    Typical applications include:


    • Cellular antenna mounts and screens

    • Chemical process equipment

    • Air and water pollution equipment

    • Marine applications