Description
BA, Imperial External Shakeproof Washer, Zinc BZP or Self Colour, DIN 6798A, Overlapping Serrated Teeth
Fixaball sells all diameters of B.A, Imperial External, Serrated,Shakeproof Washers.
A Shakeproof washeris used as a way to lock nuts in place and withstand movement caused by the environment and vibrations. Therefore, a shakeproof washer makes the fastening more secure and reliable.
Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminium surfaces.
Zinc Plating
Zinc coated and plain steel shakeproof washers are for indoor use as outside they will corrode and eventually failin wet conditions.
BA Sizes
British Association (BA), imperial sized, shake proof, overlapping internal washers. The closest metric equivalent has also been added in brackets.
| Description BA and Imperial External Shakeproof Washers |
| External Serrated Washers DIN 6798A SELF COLOUR M3.5 4BA |
| External Serrated Washers DIN 6798A BZP – M4 (4.3mm) 3BA |
| External Serrated Washers DIN 6798A BZP – M5 (5.3mm) 2BA |
| External Serrated Washers DIN 6798A BZP – M6 (6.4mm) 0BA |
| External Serrated Washers DIN 6798A BZP – M8 (8.4mm) 5/16 |
| External Serrated Washers DIN 6798A BZP – M10 (10.5mm) 3/8 |
| External Serrated Washers DIN 6798A BZP – M12 (13mm) |
| External Serrated Washers DIN 6798A BZP – M14 (15mm) 9/16 |
| External Serrated Washers DIN 6798A BZP – M16 (17mm) 5/8 |
| External Serrated Washers DIN 6798A BZP – M20 (21mm) |
External Teeth
The locking teeth are on the outside, leaving a rounded, internal edge
Overlapping Teeth
As the teeth overlap, when the fastener is tightened the teeth are harder to squash, so a deeper indent occurs, creating a more secure lock. These are best used when the joint is intended to be permanent.
Orders placed before 2pm are dispatched same day (Mon-Fri).
Standard, Free Delivery is Royal Mail, 2nd Class (2-5 days, most likely 2 days). For a faster delivery time, select 1st class or courier at checkout.
Please choose your, ‘No. of Items in Pack’, ‘Diameter‘, and, ‘Quantity‘ of packs from the drop down menus.
Washer Size Equivalents: Metric – Imperial/ BA
M4 3BA
M5 2BA
M6 0BA
M8 5/16
M16 5/8
Some items are zinc plated and some are not. Please check if this is a crucial feature.
Image is for illustrative purposes only.
