These are a set of four Stainless Steel BSA sump filter plate stud, nuts and washers.  They are 1"" long with 3/8" long threads each end, one end being Cycle (CEI) 26tpi and the other Whitworth. These fit the standard steel filter plate, NOT the alloy after market plates. They are supplied together with Stainless nuts and rectangular section lock washers. The studs have slightly domed ends which can easily be polished to look great as they slightly protrude through the nuts. The nuts have a single sided chamfer and are machined back and front to leave a nicely machined finish, each side of the nuts have been linished to leave a bright finish rather than the dull finish normally found on hex bar.

All nuts are semi polished so they can easily be polished to a mirror finish or bead blasted to give that original cadmium look. Please note all stainless parts should be assembled with copa slip (copper slip), which we also list on ebay.


These items are Made in England.

Delivery to Portugal, Greece, Turkey and Spain is unreliable and cannot be guaranteed, if you order from these countries you do so at your own risk.  It is not uncommon for delivery to take 30 days or more.

W1-06 x 4 ok