Best current price£7.74from eBay
Shopping.co.uk recommended and popular offers
eBay£7.74Visit shop Unifix Grade 10.9 Socket Button Head Screws M6 x 10 - Box of 200
Visit shop
Debenhams£7.78Visit shop Unifix Unisex Silver Grade 10.9 Socket Button Head Screws - Box Of 200 In
Visit shop7 offers from £7.74 - £14.14
View price history by clicking the chart icon.
Unifix Grade 10.9 Socket Button Head Screws are high-tensile fasteners engineered for industrial and heavy-duty mechanical applications where strength and a low-profile finish are required. These screws are ideal for engineers, fabricators, and DIY enthusiasts who need reliable holding power that meets ISO 7380-1 standards. While these screws provide exceptional durability, they are intended for specific high-torque applications and require the correct hex key size for proper installation to avoid stripping the internal drive.
| Colour | Grey |
|---|---|
| Model Part Number | 1261549 |
| Brand | Unifix |
The 10.9 grade indicates the tensile strength of the fastener. The '10' represents a nominal tensile strength of 1000 MPa, and the '.9' indicates the yield point is 90% of the nominal tensile strength.
No, these are high-tensile steel screws. They are treated for durability but do not possess the same level of inherent corrosion resistance as stainless steel.
They are primarily designed for industrial and mechanical use. If used outdoors, they should be protected from direct moisture to prevent rust.
Socket button head screws are typically measured from under the head to the tip of the threads.
ISO 7380-1 is the international standard that specifies the dimensions, thread size, and head style for button head screws with internal hex sockets.
Ensure the hex key size matches the socket perfectly and is not rounded. If the screw is partially installed, use a screw extractor or file a slot to use a flathead driver.
Check the hole for debris or metal shavings. Ensure the thread pitch matches your nut or tapped hole. If it is a blind hole, ensure the screw length is not too long for the depth of the hole.
For installation, ensure you have a set of metric hex keys that match the socket size of your specific screw diameter. Always thread by hand initially to prevent cross-threading, especially when fastening into pre-tapped metal holes. While these screws are made of durable high-tensile steel, they should be kept in a dry location to prevent moisture build-up. If used in outdoor or damp conditions, consider applying a light coating of machine oil or a suitable corrosion inhibitor. Always verify the screw length ensures full thread engagement in your substrate to maintain the integrity of the 10.9-grade tensile rating.
