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Hygienic wing screws Stainless Steel

Material

Handle - Stainless Steel 1.4404, Polished.

These polished wing screws let any operator easily thread and lock machine guards in place without needing a single tool. Built with premium corrosion-resistant stainless steel, the wide wings give you plenty of finger leverage. They are fantastic for fastening access hatches on food mixing vats, cosmetic production lines, and industrial beer brewing tanks.

From £18.64 £15.53

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	L	L1	Stock Guaranteed
M4 x 8 mm Hygienic wing screw Stainless Steel 82031-9200408 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 82031-9200408 Company Code	0.01	20	4	M4	10.8	19	8	7	< 10	£18.64 £15.53 Unit Price 1 + £18.64 £15.53 11 + £17.70 £14.75 Saving 5% 50 + £15.84 £13.20 Saving 15% 100 + £14.90 £12.42 Saving 20% Total:
M5 x 10 mm Hygienic wing screw Stainless Steel 82031-9210510 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 82031-9210510 Company Code	0.02	21	5	M5	11.8	21	10	9	< 10	£19.61 £16.34 Unit Price 1 + £19.61 £16.34 11 + £18.64 £15.53 Saving 5% 50 + £16.67 £13.89 Saving 15% 100 + £15.70 £13.08 Saving 20% Total:
M6 x 12 mm Hygienic wing screw Stainless Steel 82031-9250612 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 82031-9250612 Company Code	0.03	25	6	M6	14.2	25	12	11	< 10	£21.89 £18.24 Unit Price 1 + £21.89 £18.24 11 + £20.80 £17.33 Saving 5% 50 + £18.61 £15.51 Saving 15% 100 + £17.51 £14.59 Saving 20% Total:
M8 x 16 mm Hygienic wing screw Stainless Steel 82031-9330816 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 82031-9330816 Company Code	0.07	33	8	M8	18	33	16	15	< 10	£29.36 £24.47 Unit Price 1 + £29.36 £24.47 11 + £27.90 £23.25 Saving 5% 50 + £24.96 £20.80 Saving 15% 100 + £23.50 £19.58 Saving 20% Total:
M10 x 20 mm Hygienic wing screw Stainless Steel 82031-9401020 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 82031-9401020 Company Code	0.13	40	10	M10	22.3	40	20	19	< 10	£46.46 £38.72 Unit Price 1 + £46.46 £38.72 11 + £44.15 £36.79 Saving 5% 50 + £39.49 £32.91 Saving 15% 100 + £37.18 £30.98 Saving 20% Total:

Total

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Product Info

SKU

WDS 82031

What are Hygienic Wing Screws?

Hygienic Wing Screws (also known as sanitary thumb screws or wing bolts) are premium stainless steel fasteners featuring an external thread and an ergonomic, wing-shaped grip.

Specifically engineered for manual, tool-free tightening and rapid release, these screws allow operators to open, remove, or re-tighten simple connections completely by hand—eliminating the need for wrenches or spanners. When paired with compatible WDS Hygienic USIT® Sealing and Shim Washers, the under-head shaft design forms a secure, liquid-tight junction. This makes them ideal for securing access points, removable guards, and machine settings that must be adjusted quickly during routine sanitisation or product line changeovers.

Key Features

Tool-Free Manual Leverage: The prominent wing-grip design provides comfortable hand leverage, ensuring quick assembly and disassembly without marking equipment surfaces with metal tools.
Dead-Space Free Sealing: Engineered to seat flush with Hygienic USIT® Elastomer Washers, sealing out fluids and eliminating bacterial growth zones at the thread interface.
Ultra-Smooth Surface Profile: Features a 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: Contoured with smooth transitions and generous radii to remove sharp corners, micro-crevices, or unexposed areas where cleaning chemicals could pool.
Premium 316 Stainless Steel: Forged from robust 316 Stainless Steel (1.4404 / A4) to guarantee maximum resistance against aggressive chemical washdowns and high-pressure steam.

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 Thumb Screws / Butterfly Screws
Washdown Hand Screws / Wing Bolts
Tool-Free Stainless Steel Screws
High-Finish Wing Grips

Technical Specifications

More Information
Unit Type	Metric
Material	Stainless Steel
Stock Guaranteed	No