Holding Washer made of PA

Product specification For locking of countersunk head screws Absorb vibrations caused by... more

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Product specification

For locking of countersunk head screws

Absorb vibrations caused by motor-driven appliances

Prevent the formation of local elements and resulting corrosion

Usually used in the lighting and electrotechnical industry

Technical specification

Material: PA 6 (polyamide 6)

Colour: natural

General Information Universal washers or spacer rings Ideal sliding rings between rotating... more

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General Information

Universal washers or spacer rings

Ideal sliding rings between rotating parts

Insulate moisture and electricity

Absorb vibrations

Chemical features:

Resistant to aromatic and aliphatic hydrocarbons, fuels, mineral oils and mineral lubricants; suitable for alkohols, esters, ketones, ethers and amines; good resistance to weak alkalis, but only moderate resistance to strong alkalis; limited resistance to weak mineral and organic acids; not resistant to oxidizing acids, strong mineral and organic acids as well as phenols; limited resistance to hydrolysis

Material specification:

Polyamide is an elastic, tough, loadable, but notch-sensitive material

Impact resistant

Resistant to abrasion and cold

High fatigue strength and excellent resilience

High wear resistance and good mechanical damping capacity

Insulating properties and an amazingly high tensile strength

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

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

PA 6 features a higher impact resistance compared to PA 6.6

PA 6 has the highest water absorption of all common plastics up to 9 to 10 % (followed by PA 6.6 with 8 to 9 %), thus considerably increased toughness, flexibility and elongation. However, the strength of the material can therefore be reduced by up to 10 %.

Material: PA 6 (polyamide 6)

Colour: natural

Density: approx. 1.14 g/cm³

Temperature range: -40 to +85 °C, for a short time +180 °C

Melting temperature: +220 °C (ISO 11357)

Yield stress: 75 MPa (ISO 527)

Elongation at break: >50 % (ISO 527)

Elastic modulus: 3,200 MPa (ISO 527)

Impact resistance: without break (DIN 53453)

Notch impact strength (Charpy): >3 kJ/m² (ISO 179)

Ball pressure hardness: 160 N/mm² (ISO 2039-1)

Shore hardness D: 82° (DIN 53505)

Dielectric strength: 20 kV/mm (IEC 60243)

Dielectric constant: 3.9 at 50 Hz (IEC 60250)

Surface resistance: 10¹³ Ohm (IEC 60093)

Volume resistivity: 10¹⁵ Ohm x cm (IEC 60093)

Comparative tracking index (CTI): >600 (DIN 53480)

Dielectric loss factor (at 50 Hz): 0.02 (specimen dry)

Water absorption: up to 10 % (during storage in water) (DIN 53472)

Flammability rating: UL 94 HB

Item	For thread	d mm	D mm	d1 mm	h mm	Einheit Stück	Price Euro*
306694	M3	2,4	7	3,9	1	50	22.00
306695	M3	2,4	7	3,9	1	100	41.00
306696	M4	3,4	9	5	1	50	26.00
306697	M4	3,4	9	5	1	100	43.00
306698	M5	4,5	10	7	1	50	28.00
306699	M5	4,5	10	7	1	100	45.00
306700	M6	5,5	12,5	9	1,5	50	30.00
306701	M6	5,5	12,5	9	1,5	100	50.00
306702	M8	7	16	11	1,5	50	37.00
306703	M8	7	16	11	1,5	100	63.00