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Hygienic wing nuts Stainless Steel

Material

Handle - Stainless Steel 1.4404, Polished.

Designed with a wide, comfortable grip, these marine-grade wing nuts make it incredibly easy for any operator to spin and lock parts together without using hand tools. The smooth curves naturally shed soapy water and debris, keeping lines spotless. They are a smart choice for quick-change areas in beverage lines, cleanrooms, and commercial kitchens.

From £15.86 £13.22

SKU

WDS 82031

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STOCK GUARANTEED - Please check the table below for the specific item codes in this range that we guarantee.

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Grouped product items
WDS No.	Weight	A	B	D	D1	H	H1	T	Stock Guaranteed
M4 Hygienic wing nut Stainless Steel 82031-92004 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 82031-92004 Company Code	0.01	20	4	M4	10.8	19	5.3	6	< 10	£15.86 £13.22 Unit Price 1 + £15.86 £13.22 11 + £15.07 £12.56 Saving 5% 50 + £13.49 £11.24 Saving 15% 100 + £12.70 £10.58 Saving 20% Total:
M5 Hygienic wing nut Stainless Steel 82031-92105 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 82031-92105 Company Code	0.02	21	5	M5	11.8	21	6	6	< 10	£16.67 £13.89 Unit Price 1 + £16.67 £13.89 11 + £15.84 £13.20 Saving 5% 50 + £14.17 £11.81 Saving 15% 100 + £13.34 £11.12 Saving 20% Total:
M6 Hygienic wing nut Stainless Steel 82031-92506 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 82031-92506 Company Code	0.03	25	6	M6	14.2	25	7	7	< 10	£18.61 £15.51 Unit Price 1 + £18.61 £15.51 11 + £17.68 £14.73 Saving 5% 50 + £15.82 £13.18 Saving 15% 100 + £14.89 £12.41 Saving 20% Total:
M8 Hygienic wing nut Stainless Steel 82031-93308 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 82031-93308 Company Code	0.06	33	8	M8	18	33	8.4	9	< 10	£24.96 £20.80 Unit Price 1 + £24.96 £20.80 11 + £23.71 £19.76 Saving 5% 50 + £21.22 £17.68 Saving 15% 100 + £19.97 £16.64 Saving 20% Total:
M10 Hygienic wing nut Stainless Steel 82031-94010 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 82031-94010 Company Code	0.12	40	10	M10	22.3	40	10	11	< 10	£39.54 £32.95 Unit Price 1 + £39.54 £32.95 11 + £37.57 £31.31 Saving 5% 50 + £33.61 £28.01 Saving 15% 100 + £31.63 £26.36 Saving 20% Total:

Total

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Product Info

SKU

WDS 82031

What are Hygienic Wing Nuts?

Hygienic Wing Nuts (also known as sanitary butterfly nuts) are premium stainless steel hand nuts engineered for tool-free tightening, rapid release, and adjustment on sanitary processing machinery.

Designed with an ergonomic wing shape, these fasteners allow machine operators to easily tighten or loosen a fixing entirely by hand—completely eliminating the need for spanners or wrenches. When paired with compatible WDS Hygienic USIT® Sealing and Shim Washers, the shaft design creates an almost cavity-free, liquid-tight connection. This makes them the ideal choice for modular machinery parts that require frequent, toolless removal for sanitisation, visual inspection, or rapid production line changeovers.

Key Features

Tool-Free Operation: The smooth wing-grip profile provides excellent leverage, allowing quick manual adjustment without damaging sensitive surfaces with metal tools.
Dead-Space Free Sealing: Engineered to seat flush with Hygienic USIT® Washers, sealing out moisture and eliminating bacterial growth zones at the thread interface.
Ultra-Smooth Surface Profile: High-gloss polished finish with a surface roughness average significantly below Ra 0.8 µm, making it incredibly difficult for process debris or cleaning fluids to adhere.
Debris-Resistant Geometry: Designed with smooth contours, generous radii, and gradual transitions to completely remove sharp corners or micro-crevices where product residue can hide.
Premium Marine-Grade Metals: Forged from robust 316 Stainless Steel (1.4404 / A4) to withstand aggressive high-pressure steam cleaning and harsh chemical washdowns without pitting.

Target Industrial Applications

This unified assembly is purpose-built for cleanrooms, sterile laboratories, and processing equipment subject to strict sanitary inspection:

Food, Beverage & Dairy Processing: Conveyor guide rail adjustments, changeover tooling parts, and sorting lines.
Pharmaceutical & Medical Device Manufacturing: Mixing vessel ports, automated packaging blocks, and cleanroom enclosure panels.
Sanitary Machinery Fabrication: Removable safety guards, quick-release cleaning panels, and access shield covers.

Alternative Industry Names

Depending on your industry sector or application layout, this combined assembly may be referenced as:

Sanitary Wing Nuts / Butterfly Nuts
Washdown Wing Nuts / Wing Grips
Hygienic Thumb Nuts
Stainless Steel Hand Nuts

Technical Specifications

More Information
Unit Type	Metric
Material	Stainless Steel
Stock Guaranteed	No