Need Help ?

Having trouble trying to decide which fastener you require or having trouble finding the size you need? Please contact us if you need any help with your order.

We can make you any custom order to suit your needs please contact us with your requirements.

Shipping Information

We guarantee to dispatch all items within 24 hours of cleared payment monday to friday.

All orders placed before 3.00pm monday to friday will be dispatched same day.

Product Information

M3, M4, M5, M6 Pozi Countersunk Machine Screws

Zinc Plated with a Black Coating

DIN 965

Please Select Size And Quantity From Drop Down Options Above

Mobile Description Summary

M3, M4, M5, M6 Black Zinc Plated Pozi Countersunk Machine Screws

Dimensions M3 M4 M5 M6
Thread Diameter 3mm 4mm 5mm 6mm
Thread pitch 0.5mm 0.7mm 0.8mm 1.0mm
Head Height 1.65mm 2.2mm 2.5mm 3mm
Head Diameter 5.4mm 7.3mm 9.1mm 10.8mm
Driver Size PZ1 PZ2 PZ2 PZ3

Screw Length Includes Head

All orders placed before 3.00pm monday to friday will be dispatched same day.
We aim to have all orders placed before 10.30am saturday dispatched same day.
All items are free UK post and packaging and are always in stock, ready to post.

Please click on the link below to view our shop and full range of nuts, bolts and washers.

Black zinc plated explained

These screws are standard zinc plated screws with a decorative black coating applied.


The dip spin black coating offers a slightly increased level of protection against corrosion and is very thin so will not interfere with the threads, there is no build up in the threads or recess on the heads.


The coating is solvent based and is resistant to chemicals and is also RoHS2 compliant.


Please note though that due to the thin application on these screws, it is possible that the coating may scratch slightly.

UK Orders:

All UK orders will be shipped via royal mail 2nd class.

Higher value orders will be shipped via recorded delivery or courier to offer a little more security.

Next day delivery is available, please Contact Us for pricing.

International Orders:

If there is no shipping price for the item you require please either contact us or request total from seller.

All international order will be sent via royal mail small packets.

Please note orders over 2 kilo will be split into two packages due to a 2 kilo maximum weight allowance.

Higher value orders will be sent via a tracked service and may be sent via courier.

If payment is received by 3.00pm, goods will be dispatched same day.

At the moment we only accept payment from paypal.

No account necessary, You can make payment with any major credit or debit card.

1. Do you ship worldwide?

Yes we ship worldwide, if there is no price for shipping please contact us or request total from seller.

2. Why is there no shipping price for my country on some multi variation listings? Will you ship to me?

EBay do not offer a function to quote different shipping prices for different variations, please either contact us with the size of screw, washer or whatever you require plus pack size for a quote.
Alternatively please purchase then request total from seller before making payment.
We ship World Wide!

3. What service do you ship Uk orders on?

We ship all orders via royal mail 2nd class.

4. What is the estimated delivery time of 2nd class?

2nd class is estimated to take between 1-3 business days (Monday- Saturday), this however is not a guaranteed timescale.

5. Do you accept returns?

Yes we accept returns.
For items sent in error we will go out our way to resolve the issue and get the correct item out to you asap.
For items ordered in error, we are happy to refund or replace providing item is returned unused within 14 days of receipt.
For items ordered in error, buyer is responsible for return postage.

6. Do you offer combined shipping for international orders?

Yes we do, you can either contact us first for costs, or simply select the items you require then request total from seller.

7. I have ordered items from you but can not pay right now, can you wait a few days for payment?

We prefer to be paid as soon as possible.
However we are more than happy to wait if you could spare a minute to let us know roughly when to expect payment.
Unpaid item cases will be opened if there has been no contact made within 10 days, this is simply to claim back any final value fees associated with the order.

Coming Soon !!!

BoltBase is a family run business, established late 2009 and based in central Scotland.

We supply standard stainless steel fasteners in a huge range of sizes and pack quantities, our range is constantly increasing as we strive to become one of the best fastener suppliers online.

We are extremely customer focused, therefore our customer service is second to none, we will always go out our way to keep our customers happy and help them along the way in the unlikely event a problem may occur.

We always try to offer as much information as possible on our products, if however you have a question you would like answered on any of our products please do not hesitate to contact us.


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Business Hours

Monday to Friday 8.00am - 5.00pm
Saturday 9.00am - 12.00pm
Sunday Closed