Locking and Sealing Washer made of PA for M-Thread

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

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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

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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	h mm	H mm	d2¹ mm	Einheit Stück	Price Euro*
308759	M3	3,1	7	0,7	1,4	3,7	50	15.00
308760	M3	3,1	7	0,7	1,4	3,7	100	24.00
308761	M4	4,15	9	1,25	2,8	4,8	50	17.00
308762	M4	4,15	9	1,25	2,8	4,8	100	26.00
308763	M5	5,15	10,6	1,4	3,5	6	50	19.00
308764	M5	5,15	10,6	1,4	3,5	6	100	35.00
308765	M6	6,1	12	1,6	4,2	7	50	22.00
308766	M6	6,1	12	1,6	4,2	7	100	39.00
308767	M8	8,1	15,8	2,1	4,6	9,2	50	28.00
308768	M8	8,1	15,8	2,1	4,6	9,2	100	48.00
308769	M10	10	19,6	2,1	5,3	11	50	35.00
308770	M10	10	19,6	2,1	5,3	11	100	58.00
308771	M12	12	22	2,2	5,5	13,2	25	26.00
308772	M12	12	22	2,2	5,5	13,2	50	43.00
308773	M14	14	25,2	2,5	5,5	14,8	25	37.00
308774	M14	14	25,2	2,5	5,5	14,8	50	63.00
308775	M16	16,2	29,4	2,6	6,2	17	25	43.00
308776	M16	16,2	29,4	2,6	6,2	17	50	75.00
308777	M18	18,15	31,5	2,7	6,9	19,2	25	50.00
308778	M18	18,15	31,5	2,7	6,9	19,2	50	82.00
308779	M20	20,2	35,5	2,8	6,9	21,3	25	58.00
308780	M20	20,2	35,5	2,8	6,9	21,3	50	86.00
308781	M22	22,5	36	2,5	6	23,3	25	59.00
308782	M22	22,5	36	2,5	6	23,3	50	89.00
308783	M24	24,3	37,8	3	7,9	25,2	25	69.00
308784	M24	24,3	37,8	3	7,9	25,2	50	99.00
308785	M27	27,3	40	3,1	7,9	28,1	25	67.00
308786	M27	27,3	40	3,1	7,9	28,1	50	112.00
308787	M30	30,2	49,2	3,2	9,3	31	25	71.00
308788	M30	30,2	49,2	3,2	9,3	31	50	124.00
308789	M33	33,2	50,1	3,4	9,5	34,2	25	80.00
308790	M33	33,2	50,1	3,4	9,5	34,2	50	132.00
308791	M36	36,4	64,7	3,8	11,8	37,2	25	95.00
308792	M36	36,4	64,7	3,8	11,8	37,2	50	155.00
308793	M39	39,5	69,2	3,8	10,7	40	25	135.00
308794	M39	39,5	69,2	3,8	10,7	40	50	202.00