Nice stainless steel bulkhead SMA (F) to N (M) DC-18 GHz feedthru panel fittings, perfect for building equipment, mount like standard N flange connector.  Very high quality, marked SM4257, made by Fairview Microwave, current list price is 110.00, attractive style on the N barrel nut, would look really good on a project! Handy to make insertable devices when teamed with a standard N(f) to SMA(f) bulkhead.

Please see my other auctions for more microwave goodies! Remember, I combine items to save on shipping!