Countersunk Machine Screw with Allen Key Socket

Free UK DeliveryShipping from £3.99 or FREE to the UK if you spend over £50*
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  • Countersunk Machine Screw  with Allen Key Socket

    This countersunk Stainless Steel machine Screw has an allen key socket and is a very versatile screw which comes comlete with nuts and washers. It can be used for multiple tasks and is easy to remove and replace using a standard allen key and pliers.

    Available in various sizes and lengths.

    Quantity Per Pack

    Part Dia mm Length (mm) Quantity per Packet
    ST-Y0306 M3 6 10
    ST-Y0308 M3 8 8
    ST-Y0310 M3 10 6
    ST-Y0408 M4 8 8
    ST-Y0412 M4 12 6
    ST-Y0416 M4 16 4
    ST-Y0420 M4 20 3
    ST-Y0425 M4 25 3
    ST-Y0512 M5 12 4
    ST-Y0516 M5 16 4
    ST-Y0520 M5 20 3
    ST-Y0525 M5 25 3
    ST-Y0612 M6 12 4
    ST-Y0616 M6 16 4
    ST-Y0620 M6 20 3
    ST-Y0625 M6 25 2
  • Delivery and Costs

    We try to treat delivery as a pass through cost and keep the cost to you as low as possible, on top of our already competitive product prices.

    We offer free UK standard delivery for orders over £50, this does exclude boats, masts, booms and large items which can't be sent via standard mail.

    Any order placed by midday will leave us the same day unless there is a lead time which we detail on the product page. Items which require a courier may leave the next day.

    Delivery Costs

    UK 2nd Class Small Packet - £3.99

    UK 1st Class Small Packet - £4.50

    UK 1st Class Small Packet - Over 1KG - £5.99

    Courier - £8.99

    Courier - Long Items - £40

    Close to England - £10

    Europe - £12.50

    Europe - Over 1KG - £15

    Rest of the World - £75

  • Frequenty Asked Questions

    What is the quantity for ropes?

    The quantity is meters. If you order 5 items you will receive one 5 meter continuous length of that specific rope.

    How do I claim my first order discount?

    Simply sign up to our newsletter and we'll send your unique first order discount code.

    Do you ship to other locations?

    We are always happy to provide you with a quote for shipping, simply drop us an email to with the items you are planning on ordering and your address.

    Who are Sailing Chandlery?

    We're a team of sailors who are passionate about keeping you sailing and providing an excellent service first time. Find out more.

    I have another question?

    You can call the team on 07793 953564 or email us