450 piece Steel Screw/Bolt Kit, M3, M4, M5

  • RS Stock No. 524-051
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Metric Cap Head & Grub Screw Kit

To DIN912
High tensile steel
Black oxide finish
Kit contains a total of 450 metric cap & grub screws
Supplied in hinged-lid storage box

Black Oxide Finished Steel Hexagonal Metric Cap & Socket Screw Kit

From the trusted RS PRO brand, this set of high-quality hexagonal metric cap and socket screws have a hexagonal drive and a black oxide finish. Socket screws are tightened using an Allan or Hex key, making them ideal for use in applications where externally wrenched fasteners are not practical because of a lack of space. Metric cap head screws have a larger head diameter than the screw shaft yet a smaller diameter than most machine screws, making them more appropriate for holding thin materials such as sheet metal guards while still being discreet.

In this kit, you will find a range of 450 socket screws with metric cap heads and hexagonal sockets for Allan or hex keys. The kit includes thread sizes of M3, M4 and M5 with lengths ranging from 6mm to 30mm.

Features and Benefits

  • Button head hexagonal socket screws to DIN912 standards

  • Steel with black oxide finish

  • Supplied in a polypropylene case with a hinged lid


The strength of steel due to its carbon content makes it a versatile component material that can withstand wear and tear. The black oxide finish provides a resistance to corrosion and wear, granting these screws the same qualities as their stainless steel counterparts.

Compared to ordinary fasteners, fewer socket screws of the same size can achieve an equal clamping force in a joint. As fewer screws are required for a given job, fewer holes are required to be drilled and tapped, as well as reducing the overall project weight as fewer, smaller screws are used.

  • Carpentry

  • Construction and roofing

  • DIY applications

  • Machinery applications

Frequently Asked Questions

What Does M2.5, M3, M3.5, M4, M5, etc. mean?

These measurements are found on metric screws, The 'M' stands for Metric. The number after the 'M' is the nominal outer diameter of the screw in mm.


RS PRO aims to be your go-to brand for reliability and value for money. We source great parts at great prices and test everything with our in-house experts to ensure the quality you need. When it comes to tools and fasteners, we know that versatility and dependability are what you need. As such, we stock a variety of mainstay and specialist fasteners and couplers to suit any application. Whether you're a professional electrician, plumber, builder or DIY enthusiast, RS PRO is here to support you.

Attribute Value
Number of Pieces 450
Screw/Bolt Type Grub Screw
Head Shape Hex Socket Cap
Drive Type Hex Socket
Screw/Bolts Lengths 6 → 30mm
Thread Size M3, M4, M5
Material Steel
Finish Black Oxide
Screw/Bolt Length Longest 30mm
Screw/Bolt Length Shortest 6mm
64 In stock for delivery within 4 working days
Price 1 Kit of 1
SGD 174.61
(exc. GST)
SGD 186.83
(inc. GST)
1 +
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