Raks
3/8 by 20 is not a common thread size, coarse is 3/8 by 16 and fine is 3/8 by 24 - all the Soundanchor products I have use the coarse thread 3/8 by 16 for their spikes.
$ 14.50 for a set of four if they come with nuts and washers is a good deal, I think we pay about $50 for a box of 100, so with repackaging handling and all the rest not a bad deal.
Best of luck
Peter
3/8 by 20 is not a common thread size, coarse is 3/8 by 16 and fine is 3/8 by 24 - all the Soundanchor products I have use the coarse thread 3/8 by 16 for their spikes.
$ 14.50 for a set of four if they come with nuts and washers is a good deal, I think we pay about $50 for a box of 100, so with repackaging handling and all the rest not a bad deal.
Best of luck
Peter