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Metric Finishing Washer made of PA for Countersunk Head Screws - conical cross-section

Product specification High-quality surface Excellent protection from damage Good insulation... more

Product specification

High-quality surface

Excellent protection from damage

Good insulation effect

Developed for mounting of countersunk head screws

Protects sensitive materials, such as lacquer, enamel, glass, textiles, ceramics

Outstandingly suited for furniture industry, car body and apparatus construction, yacht construction

Technical specification

Material: PA 6.6 (polyamide 66)

Colour: black or natural

General Information Good coefficient of sliding friction High mechanical stability and... more

General Information

Good coefficient of sliding friction

High mechanical stability and fatigue strength

Excellent resilience

Impact resistant

Resistant to abrasion

Resistant to cold

Chemical features:

Good resistance to weak alkalis, but only moderate resistance to strong alkalis; resistant to aromatic and aliphatic hydrocarbons, fuels, mineral oils and mineral lubricants; suitable for alkohols, esters, ketones, ethers and amines.

Material specification:

The polyamides are universal materials for mechanical functional parts

The temperature resistance of polyamide (from -30 to +100 °C, for a short time +120 °C) allows use in many industries

Connecting parts made of polyamide and similar plastics protect from rust and corrosion damage

Insulating properties and an amazingly high tensile strength

PA can also be used in the food processing industry and in medical fields

Resistant to corrosion and abrasion

Non-toxic and unmagnetic

Vibration-damping

PA 6.6 features the same chemical resistance as PA 6

PA 6.6 has a higher hardness, abrasion resistance, and a little higher operating temperature than PA 6

However, PA 6.6 is a little less impact resistant compared to PA 6

Material: PA 6.6 (polyamide 6.6)

Colour: natural

Density: 1.14 g/cm3 (DIN 53479)

Temperature range: -30 to +100 °C

Melting temperature: +255 °C (DIN 53736)

Yield stress: 83 N/mm2 (ISO 527)

Elongation at break: 30 % (DIN 53455)

Bending strength: 115 N/mm2 (DIN 53452)

Elastic modulus: 3,000 N/mm2 (DIN 53457)

Impact resistance (Charpy): without break (DIN 53453)

Notch impact strength (Izod): 60 J/m (ASTM D 256)

Coefficient of sliding friction against steel (dry): 0.35 - 0.42

Dielectric loss factor (at 1 MHz): 0.025 (DIN 53483)

Volume resistivity: 1015 Ohm x cm (DIN 53482)

Surface resistance: approx. 1014 Ohm (DIN 53482)

Comparative track. index (CTI): >600 V (IEC 112)

Dielectric strength: approx. 40 kV/mm (DIN 53481)

Water absorption (saturation): approx. 8.5 % (DIN 53495)

Moisture absorption (s.c.a.-saturation): approx. 2.9 % (DIN 53714)

Item Image For thread d
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Colour Unit
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Price
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309032
M3 3 6,5 9,2 1,9 90 natur 50 26.00
309033
M3 3 6,5 9,2 1,9 90 natur 100 42.00
309034
M3 3 6,5 9,2 1,9 90 schwarz 50 26.00
309035
M3 3 6,5 9,2 1,9 90 schwarz 100 42.00
309036
M4 4,3 8 11,9 3 90 natur 50 26.00
309037
M4 4,3 8 11,9 3 90 natur 100 42.00
309038
M4 4,3 8 11,9 3 90 schwarz 50 26.00
309039
M4 4,3 8 11,9 3 90 schwarz 100 42.00
309040
M5 5,3 9,8 15,3 3,5 90 natur 50 26.00
309041
M5 5,3 9,8 15,3 3,5 90 natur 100 42.00
309042
M5 5,3 9,8 15,3 3,5 90 schwarz 50 26.00
309043
M5 5,3 9,8 15,3 3,5 90 schwarz 100 42.00
309044
M6 6,3 11,7 17 4,5 90 natur 50 26.00
309045
M6 6,3 11,7 17 4,5 90 natur 100 42.00
309046
M6 6,3 11,7 17 4,5 90 schwarz 50 26.00
309047
M6 6,3 11,7 17 4,5 90 schwarz 100 42.00
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