A 320-piece mixed tray of zinc plated, clear passivated machine screws in countersunk, pan and flange head styles. Metric thread throughout. Ideal for keeping a useful selection to hand for pre-tapped holes or use with matching nuts.
This zinc machine screws mixed tray gives you 320 pieces across multiple head types, all finished with zinc plating and clear passivation for basic corrosion protection in general workshop and site use. Having a mixed tray on hand means you are not hunting through half a dozen boxes every time you need a machine screw for a quick repair or assembly job. Everything is in one place, sorted and ready.
Machine screws differ from self-tapping screws in one important way: they need either a pre-tapped hole or a matching nut. The thread is consistent and precise along its full length, which makes them the right choice wherever you need a clean, reliable fixing that can be assembled and disassembled without damaging the thread. If you are regularly assembling metal components, brackets, electrical enclosures or machinery panels, a stock of mixed machine screws saves time and repeated trips to the suppliers.
What the Zinc Machine Screws Mixed Tray Includes
The tray covers three head types. Countersunk heads sit flush with the surface, which matters where a raised head would foul a moving part or look untidy. Pan heads give you a broader bearing surface and are the most common general-purpose choice. Flange heads combine a wider bearing surface with a built-in washer profile, useful where the material is softer or where you want to spread the load without adding a separate washer. All screws are metric thread, so they pair with standard metric nuts, washers and tapped components without any guesswork.
The zinc plating and clear passivation offer a decent level of protection for indoor and sheltered environments. This is not a stainless tray, so it is best kept away from constantly wet or outdoor conditions. For workshops, vans, maintenance teams and general trade use, it is exactly what you need: a practical, well-thought-out selection at a sensible price.
Pro Tip: If you are matching screws to an existing tapped hole, run a metric tap through the hole first to clear any swarf or debris before fitting, as a partially blocked thread will make the screw feel tight even when the size is correct.
This mixed tray is well suited to general engineering, electrical installation, panel building, machinery maintenance and workshop assembly work. Machine screws are used wherever components need to be fastened securely through pre-tapped holes or with nuts, and the variety of head types in this tray covers the most common requirements across these trades.
Maintenance engineers, electricians fitting enclosures, fabricators and anyone running a well-stocked van or workshop will find this tray genuinely useful for day-to-day jobs without needing to order specific sizes for every small task.
Best For
General workshop and site assembly
Electrical enclosure and panel work
Machinery and equipment maintenance
Pre-tapped metal components
Through-hole fixing with metric nuts
Head Types Included
Countersunk (flush fit)
Pan head (general purpose)
Flange head (built-in washer profile)
Key Features
320 pieces per tray
Zinc plated and clear passivated finish
Metric thread throughout
Multiple head types in one tray
Suitable for indoor and sheltered use
Not suitable for: Not suitable for permanent outdoor or exposed wet environments where stainless or hot-dip galvanised fixings would be the better choice. These screws require a pre-tapped hole or matching metric nut and are not designed for direct fixing into unthreaded material.
Select the appropriate head type and size for your application. For pre-tapped holes, engage the thread by hand first to confirm alignment, then drive home with the correct screwdriver or hex key. When using with nuts in through-holes, hold the nut in position with a spanner while tightening to avoid spinning.
Identify the correct head type for your application: countersunk for flush fitting, pan for general use, flange where a wider bearing surface is needed
Confirm the thread size matches your tapped hole or nut before attempting to fit
Clear any swarf or debris from tapped holes before inserting the screw
Start the thread by hand to ensure correct alignment and avoid cross-threading
Tighten with the appropriate screwdriver bit or hex key to a firm fit without overtightening
Can these machine screws be used without a nut?
Yes, provided the hole is already threaded to a matching metric specification. Machine screws are designed for pre-tapped holes or use with a conforming nut in a plain through-hole. They will not cut their own thread like a self-tapping screw.
Are these screws suitable for outdoor use?
The zinc plating and clear passivation offer basic corrosion protection for indoor and sheltered environments. For prolonged outdoor or wet exposure, stainless steel fixings would be a more reliable choice.
The screws in this tray are manufactured to metric thread standards and finished with electroplated zinc and clear passivation, providing a degree of corrosion resistance suitable for general indoor use. The three head profiles, countersunk, pan and flange, cover the most common fixing requirements across light engineering and electrical trades. All pieces are sized to work with standard metric nuts and tapped components.
SKU
TRAY500
Quantity
320 pieces
Thread Type
Metric
Finish
Zinc plated, clear passivated
Head Types
Countersunk, Pan, Flange
Drive Type
Mixed
Material
Steel with zinc plating
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