SKU

WDS 7663

What are blue seal washers in hygienic design?

Hygienic design seal washers are precision-engineered components specifically designed to meet the stringent requirements of hygienic applications. These seal washers are intended for use in conjunction with either the hexagon head bolt WDS 7661 or hexagon nut WDS 7662, making them an integral part of hygienic fastening systems.

One of the standout features of these seal washers is their cleaning-optimized geometry, which facilitates thorough and efficient cleaning processes. Additionally, they boast an exceptionally smooth surface finish, with a rating of Ra ≤ 0.8 µm, ensuring minimal surface irregularities that could harbor contaminants.

These seal washers are manufactured using Thermoplastic material that complies with both EU10/2011 and FDA standards, ensuring their suitability for use in the food and pharmaceutical industries, among others. The Thermoplastic material, known as POM, is resistant to a temperature range spanning from -20°C to +100°C, offering reliability in diverse operational conditions.

A distinct advantage of these seal washers is their foodstuff-conforming material, which underscores their appropriateness for hygienic environments. They are available in an ultramarine blue version (RAL5002), which provides visual differentiation and aesthetic appeal.

These sealing washers are not suitable for applications involving highly acidic cleaning solutions with a pH below 4, or oxidizing agents. Users are encouraged to assess the compatibility of the Hygienic Design fasteners with their specific applications, taking into account factors such as temperature, cleaning agents, and product media. Routine inspection and replacement, as needed, are recommended to maintain optimal performance.

Industries that can benefit from these hygienic design seal washers include the food and beverage industry, pharmaceutical manufacturing, and any application where maintaining a high level of hygiene and cleanliness is paramount. These washers are particularly valuable in environments where compliance with strict food and drug safety regulations is essential.

Alternative terms for hygienic design seal washers may include "Hygienic Seal Washers," "Food-Grade Seal Washers," or "Sanitary Seal Washers."

WDS No.	Weight	D	D1	D2	H	Stock Guaranteed
M4 6mm dia Thermoplastic hygienic blue seal washer 7663-M4 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M4 Company Code	0.01	6	10	11.25	2	< 10	£1.37 £1.14 Unit Price 1 + £1.37 £1.14 11 + £1.31 £1.09 Saving 4% 100 + £1.16 £0.97 Saving 15% 250 + £1.09 £0.91 Saving 20% Total:
M5 8mm dia Thermoplastic hygienic blue seal washer 7663-M5 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M5 Company Code	0.01	8	12	13.25	2	< 10	£1.37 £1.14 Unit Price 1 + £1.37 £1.14 11 + £1.31 £1.09 Saving 4% 100 + £1.16 £0.97 Saving 15% 250 + £1.09 £0.91 Saving 20% Total:
M6 9mm dia Thermoplastic hygienic blue seal washer 7663-M6 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M6 Company Code	0.01	9	14	15.74	2.5	< 10	£1.37 £1.14 Unit Price 1 + £1.37 £1.14 11 + £1.31 £1.09 Saving 4% 100 + £1.16 £0.97 Saving 15% 250 + £1.09 £0.91 Saving 20% Total:
M8 13mm dia Thermoplastic hygienic blue seal washer 7663-M8 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M8 Company Code	0.01	13	18	19.74	2.5	< 10	£1.46 £1.22 Unit Price 1 + £1.46 £1.22 11 + £1.39 £1.16 Saving 5% 100 + £1.25 £1.04 Saving 15% 250 + £1.18 £0.98 Saving 20% Total:
M10 17mm dia Thermoplastic hygienic blue seal washer 7663-M10 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M10 Company Code	0.01	17	22	23.74	2.5	< 10	£1.64 £1.37 Unit Price 1 + £1.64 £1.37 11 + £1.56 £1.30 Saving 5% 100 + £1.39 £1.16 Saving 15% 250 + £1.32 £1.10 Saving 20% Total:
M12 20mm dia Thermoplastic hygienic blue seal washer 7663-M12 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M12 Company Code	0.01	20	26	28.25	3	< 10	£2.14 £1.78 Unit Price 1 + £2.14 £1.78 11 + £2.03 £1.69 Saving 5% 100 + £1.81 £1.51 Saving 15% 250 + £1.70 £1.42 Saving 20% Total:
M16 29mm dia Thermoplastic hygienic blue seal washer 7663-M16 Edit the product code below. You need to be associated to a registered company in order to edit this product code, please speak to your company administrator or register Create New Company Account. WDS code 7663-M16 Company Code	0.01	29	35	37.25	3	< 10	£2.14 £1.78 Unit Price 1 + £2.14 £1.78 11 + £2.03 £1.69 Saving 5% 100 + £1.81 £1.51 Saving 15% 250 + £1.70 £1.42 Saving 20% Total:

Unit Type	Metric
MATERIAL	Plastic
Stock Guaranteed	No

Hygienic blue seal washer Thermoplastic

What are blue seal washers in hygienic design?