A mixed tray of 1,305 zinc-plated self tapping screws across three head types and a range of sizes. Ideal for stitching metal or fixing to thin sheet metal. Manufactured to BS 4174:1972 with a Pozi PZ2 recess and AB point.
This mixed zinc self tappers tray from TIMCO is one of those things you buy once and find yourself reaching for constantly. With 1,305 screws across multiple sizes and three head types, it covers the vast majority of light metalwork fixing jobs without needing to order individual boxes for every size. That alone saves time, money and a fair amount of rummaging around in the van.
All screws in the tray are manufactured to BS 4174:1972 and finished in Zinc with Trivalent Chromium (Cr3) for corrosion protection in clean, dry environments. The 60° self-tapping thread cuts cleanly into the material as you drive, and the AB point makes starting the screw straightforward even in awkward positions. Every screw takes a PZ2 bit, so no swapping drivers mid-job.
What’s in the Mixed Self Tappers Tray
The tray contains three head types: pan head, countersunk and flange head. Gauges run from 6 through to 10, with lengths ranging from 1/4 inch up to 1 and 1/2 inches. That mix is well thought out. Pan heads sit flush to the surface and are good for general fixing. Countersunk heads sit below the surface where a cleaner finish is needed. Flange heads spread the load a little, which is useful on thinner material that might otherwise pull through.
The sizes are weighted towards the most commonly used combinations, so you won’t find yourself burning through the 8 x 3/4 countersunks and left with nothing but the obscure sizes that sit untouched for months. If you do regular sheet metal work, ductwork, cladding or electrical enclosures, this mixed zinc self tappers tray is a practical addition to the toolkit.
Pro Tip: Always pre-drill a pilot hole fractionally smaller than the screw shank before driving self tappers into sheet metal, as forcing them in without one risks splitting or deforming the material and makes removal near impossible if you need to adjust.
Self tapping screws from this tray are used wherever metal needs to be joined to metal or fixed to thin sheet. Common uses include ductwork and HVAC pipework connections, electrical enclosure assembly, cladding and roofing sheet fixings, steel framing ties and general light fabrication work. The mix of sizes suits trade work across electrical, mechanical and building services applications, as well as general maintenance and repair on site.
Best For
Stitching sheet metal
Ductwork and HVAC fixings
Electrical enclosure assembly
Cladding and roofing sheet attachment
General light metalwork fabrication
On-site maintenance and repair
Compatible Surfaces
Steel
Thin sheet metal
Key Specifications
1,305 screws per tray
Gauges: 6, 8 and 10
Lengths: 1/4 inch to 1 1/2 inches
Head types: pan, countersunk, flange
Pozi PZ2 recess
AB point
60° self-tapping thread
Zinc and clear Cr3 finish
Manufactured to BS 4174:1972
Not suitable for: Not suitable for use in damp, humid or outdoor exposed environments due to a corrosion rating of 1. Not designed for use in timber, masonry or plastics.
A pre-drilled pilot hole is required before driving these screws. The pilot should be sized to suit the screw shank, not the thread. Position the screw, engage the AB point in the hole and drive at a moderate speed using a PZ2 bit. Avoid over-torquing, particularly on thin sheet, as the threads can strip or the material can deform.
Select the head type to suit the job: pan head for general surface fixing, countersunk where the head needs to sit flush or below the surface, and flange head where load spread on thinner material is needed.
Select the appropriate screw size and head type for the application
Pre-drill a pilot hole sized to match the screw shank diameter
Fit a PZ2 driver bit to your drill or screwdriver
Position the screw and engage the AB point in the pilot hole
Drive at a controlled speed, applying steady pressure
Stop driving once the head seats correctly and avoid over-torquing
Do these self tapping screws need a pilot hole?
Yes. Despite the name, these are not self-drilling. A pilot hole fractionally smaller than the screw shank is required before driving. The AB point helps locate the screw in the hole cleanly, but it will not drill through the material itself.
Are these screws suitable for outdoor use?
No. The zinc and clear Cr3 finish carries a corrosion rating of 1, meaning it is only suited to clean, dry and low humidity environments. For outdoor or exposed applications you would need a higher corrosion rated finish such as A2 stainless or a hot dip galvanised option.
Manufactured from carbon steel with a Zinc and Trivalent Chromium (Cr3) finish, these screws meet the requirements of BS 4174:1972. The 60° self-tapping thread is designed to cut into pre-drilled steel and thin sheet metal. The AB point provides a tapered tip for positive hole engagement. Suitable for clean, dry indoor environments with a corrosion rating of 1.
Brand
TIMCO
SKU
STSTRAY
Total Quantity
1,305 pieces
Material
Carbon Steel
Finish
Zinc and Clear Cr3
Thread Type
60° Self-Tapping
Point Type
AB Point
Recess Type
Pozi
Driver Bit Size
PZ2
Head Types
Pan, Countersunk, Flange
Gauges
6, 8, 10
Lengths
1/4 inch to 1 1/2 inches
Substrates
Steel, Thin Sheet Metal
Corrosion Rating
1 - Clean, dry and low humidity environments
Standard
BS 4174:1972
Pack Type
Tray
Pack Weight
2.49 kg
Pack Dimensions (mm)
298 x 168 x 42
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