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Locking and Sealing Washer made of PA for M-Thread

Product specification Proven screw retention and good screw sealing in all industries for use... more

Product specification

Proven screw retention and good screw sealing in all industries for use with standard screws and nuts.

Vibration- and noise-absorbing

Protection from corrosion and electrolytic effects

Protection of different surfaces including enamels and surface-treated materials

The retaining lips enter the thread pitch of the screw/nut when mounting the washers, thus packing all cavities between workpiece and screw head. The elastic material fits around the head of the screw/nut, ensuring additional screw/nut retention and sealing.

The washers have the best effect with single use and should be tightened with a wrench. In specific mounting cases, a short retightening after approx. 24 h is recommended. Electric and pneumatic screwdrivers can be used without problems.

Partly resistant to diluted chemicals including oils, petrol, benzene, lower alcohols, esters, ketones, ethers, chlorine, hydrocarbons, light alkalis and diluted organic acids.

Technical specification

Material: PA 6 (polyamide 6)

Colour: natural

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

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 Image For thread d
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308759
M3 3,1 7 0,7 1,4 3,7 50 14.00
308760
M3 3,1 7 0,7 1,4 3,7 100 22.00
308761
M4 4,15 9 1,25 2,8 4,8 50 15.00
308762
M4 4,15 9 1,25 2,8 4,8 100 24.00
308763
M5 5,15 10,6 1,4 3,5 6 50 17.00
308764
M5 5,15 10,6 1,4 3,5 6 100 32.00
308765
M6 6,1 12 1,6 4,2 7 50 20.00
308766
M6 6,1 12 1,6 4,2 7 100 36.00
308767
M8 8,1 15,8 2,1 4,6 9,2 50 26.00
308768
M8 8,1 15,8 2,1 4,6 9,2 100 44.00
308769
M10 10 19,6 2,1 5,3 11 50 32.00
308770
M10 10 19,6 2,1 5,3 11 100 54.00
308771
M12 12 22 2,2 5,5 13,2 25 24.00
308772
M12 12 22 2,2 5,5 13,2 50 40.00
308773
M14 14 25,2 2,5 5,5 14,8 25 34.00
308774
M14 14 25,2 2,5 5,5 14,8 50 58.00
308775
M16 16,2 29,4 2,6 6,2 17 25 40.00
308776
M16 16,2 29,4 2,6 6,2 17 50 70.00
308777
M18 18,15 31,5 2,7 6,9 19,2 25 46.00
308778
M18 18,15 31,5 2,7 6,9 19,2 50 76.00
308779
M20 20,2 35,5 2,8 6,9 21,3 25 54.00
308780
M20 20,2 35,5 2,8 6,9 21,3 50 80.00
308781
M22 22,5 36 2,5 6 23,3 25 55.00
308782
M22 22,5 36 2,5 6 23,3 50 83.00
308783
M24 24,3 37,8 3 7,9 25,2 25 64.00
308784
M24 24,3 37,8 3 7,9 25,2 50 92.00
308785
M27 27,3 40 3,1 7,9 28,1 25 62.00
308786
M27 27,3 40 3,1 7,9 28,1 50 104.00
308787
M30 30,2 49,2 3,2 9,3 31 25 66.00
308788
M30 30,2 49,2 3,2 9,3 31 50 115.00
308789
M33 33,2 50,1 3,4 9,5 34,2 25 74.00
308790
M33 33,2 50,1 3,4 9,5 34,2 50 123.00
308791
M36 36,4 64,7 3,8 11,8 37,2 25 88.00
308792
M36 36,4 64,7 3,8 11,8 37,2 50 144.00
308793
M39 39,5 69,2 3,8 10,7 40 25 126.00
308794
M39 39,5 69,2 3,8 10,7 40 50 188.00
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