Plastic does not exist in its natural state: it is a synthetic product. There are two main families of plastics:

  • Thermoplastics: they soften when heated and harden again on cooling

  • Thermosets: they are heat resistant but are destroyed without melting if the temperature is raised too high

THEIR BENEFITS

  • 7x lighter than steel: weight or mass saving

  • Thermal, mechanical and chemical resistance

  • Excellent electrical insulator

  • Recycling allows for chemical reuse or energy recovery

  • Stainless: suitable for freshwater, sea water, salt spray…

  • Eliminates the risk of corrosion

  • Very limited risk of seizure

POLYAMIDE PA6.6: TRADE NAME 'NYLON

A polyamide is a polymer containing the amide function N-H-C=O, resulting from the reaction of an acid and an amine. Density = 1.14 g/cm³.

Thermal characteristics :

  • Melting point: 255°C

  • Maximum continuous operating temperature: 120°C

  • Minimum operating temperature: -30°C

INFORMATION ON LIQUID RESISTANCE

Cold water

Hot water

Diluted acids

Concentrated acids

Oxidising acids

Organic acids

Fluoric acids

Amino acids

Ether

Turpentine

Mineral oils

Alcohol

Essence

Fats, oils

ester

ketone

PE-HD: High density POLYETHYLENE designation

HD-PE is obtained by cationic catalysed polymerisation of ethylene

 

Density = 0.95 g/cm³.

Thermal characteristics :

  • Melting point: 135°C

  • Maximum continuous operating temperature: 80°C

  • Minimum operating temperature : -40°C

Cold water

Hot water

Diluted acids

Concentrated acids

Oxidising acids

Organic acids

Fluoric acids

Amino acids

Ether

Turpentine

Mineral oils

Alcohol

Essence

Fats, oils

Ester

Ketone

Ribs for bracket and nylon caps for diameter ⅘ Acton part number 85613

Screw diameter

Head diameter 

Head height

Socket head screw

3 / 5 mm

5.6 / 9 mm

2 / 2.8 mm

Countersunk screw

3 / 5 mm

5.6 / 9.2 mm

1.65 / 2.5 mm

Oval countersunk screw

3 / 5 mm

5.6 / 9 mm

2.4 / 2.5 mm

Dimensions for brackets and nylon caps for diameter ⅚ Acton part number 85614

Screw diameter

Head diameter 

Head height

Socket head screw

4 / 6.3 mm 

7 / 10.5 mm

2.6 / 3.6 mm

Countersunk screw

4 / 6.3 mm 

6.8 / 12.4 mm

2.1 / 3.8 mm

Oval countersunk screw

4 / 6.3 mm 

7.5 / 12.4 mm

3.2 / 3.8 mm