
BA 6BA x 3/4", Countersink, Socket Screw (12.9). 10 pack.
BA 6BA x 3/4", Countersink, Screw/ Socket Screw/ Allen Bolts, High Tensile (12.9).
Fixaball.co.uk sells BA, countersink (csk/ countersunk) socket, cap screws at the best internet prices and free, first class delivery.
Orders placed before 2pm are usually dispatched same day (Mon-Fri).
Please make your size and pack quantity selection from the drop down menus at the top of the page.
BA screw threads, named after the British Association for Advancement of Science, were devised in 1884 and standardised in 1903. Screws were described as "2BA", "4BA" etc., BA threads are specified by British Standard BS 93:1951 "Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A." They are associated with metric units of measurement.
High Tensile – 12.9 Grade.
Available Materials: Plain/ Self Colour and A2 Stainless Steel.
Material/ Finish |
Appearance |
Level of Corrosion Resistance |
Typical Application |
High Tensile Steel |
Self-Colour (black with no surface treatment) |
Low, without further surface treatment |
· No exposure to moisture · Often Greased/ Oiled |
A2 Stainless Steel |
Dull Shine |
External |
· Intermittent weathering |
Stock Sizes Available at Fixaball
0BA x 13/4"
1BA x 1"
2BA x 5/16"
2BA x 1/4"
2BA x 1/2"
2BA x 5/8"
2BA x 3/4"
2BA x 7/8"
2BA x 1"
2BA x 11/4"
2BA x 11/2"
2BA x 2"
2BA x 21/4"
3BA x 5/8"
4BA x 7/32"
4BA x 1/4"
4BA x 3/8"
4BA x 1/2"
4BA x 5/8"
4BA x 3/4"
4BA x 1"
4BA x 11/4"
4BA x 11/2"
6BA x 3/16"
6BA x 1/4"
6BA x 5/16"
6BA x 1/2"
6BA x 3/4"
6BA x 1"
7BA x 1/2"
8BA x 3/16"
8BA x 1/4"
8BA x 5/16"
Image is for illustrative purposes only.
These are not mixed packs.
Please choose from the following for technical and/ or sales enquiries.
- Fill out the website enquiry form
- Click on the CHAT icon on the website
- Call: 01242 522244
- Email: sam@fixaball.co.uk