What are Metric Socket Cap Screws DIN 912?
Metric socket cap screws are a type of socket screw that is driven by an Allen key or hex key. The Allen key is inserted into a hex recess in the centre of the cylindrical head and turned to tighten or loosen the screw.
Socket cap screws can be called many different things by different people. Some of these include names like cap heads, cap bolts, Allen bolts or socket cap head screws to name a few.
These screws are manufactured to the exacting standards of the DIN 912 & ISO 4762 specs and are readily available in a huge range of sizes and materials. The metric threads are also created to the strict tolerances of the ISO 965-1 spec.
Socket Cap Screws Spec – The DIN 912 Specifications
If you need to know specific dimensions or the full spec of DIN 912 socket head cap screws, we have a handy DIN 912 PDF for you.
To gain a full understanding of what hex socket cap screws are and to see their full spec, you can read our article, Socket Cap Screws Your Complete Guide To DIN 912
Difference Between Socket Cap Head Screws & Socket Cap Head Bolts
The general name for din 912 screws is socket cap head screws, this is what most people will refer to them as. Some others would call the partially threaded version socket cap head bolts.
Socket cap head screws come fully threaded as standard in shorter lengths but then start to become partially threaded the longer they get. If you were to look at partially threaded lengths, the actual thread length will stay the same but the plain shank will increase as the socket cap head bolts get longer.
The simple formula to work out the threaded section on longer lengths of socket cap head bolts is 2x thread diameter + 12mm.
Although not standard, fully threaded lengths are available in most sizes, if you give us a shout, we can source what you need.
Metric Socket Cap Screws Materials
A few of the stock types that we hold are A2 stainless steel socket cap screws, A4 stainless steel socket cap head screws and self colour high tensile cap screws.
We are also able to source you any size in any other material that we do not hold in stock of other materials like zinc plated socket cap screws.
Socket Cap Head Screws Sizes
Cap screws are a very commonly used type of fastener and as such, they come in a huge range of sizes. Typically you can find them from around m1.4 straight off the shelf. At Bolt Base, we stock a range from m1.6 up to m12, in lengths up to 300mm.
If there is a size you require but cannot find, get in touch and we will easily source it for you. Whether it is a metric course pitch or metric fine pitch, we can even source certain lengths of left hand thread socket cap screws for you.
If imperial socket cap screws are what you require, speak to us, we do not hold any in stock but we are able to easily source what you need when you need it.
Custom Socket Cap Screws?
Do you need a bespoke size socket cap screw produced to your specific spec? If you do, we can help! Feel free to contact us with your drawings or spec, we will get you a quote sent over as soon as possible.
At Bolt Base, we are not restricted to our online stock range. We are well known for our abilities to source socket head cap screws and also other fixings and fasteners that other suppliers simply can’t, or even won’t.
If you have any questions you would like us to answer on hex socket caps, feel free to contact us and one of our friendly team will be happy to help you out.
