The phrase "affixed at a" is correct and usable in written English.
It can be used when describing something that is attached or secured to a specific location or object.
Example: "The label was affixed at a prominent location on the package for easy visibility."
Alternatives: "attached to a" or "secured at a".
Lieber fashioned a tip from a carbon nanotube and affixed at the end of it a molecular fragment called a carboxyl group.
affixed at the bottom to a ceramic plate that had been modified to allow insertion of the planar thick-film strip electrode.
Sensors affixed at predetermined spots en-route a stream or within vehicles moving along the stream, can be used for direct travel time measurements.
Tags should be affixed at access locations and should include a daily inspection log that is signed and dated each day.
Despite its bulging physique, jacketed in a brilliant shade called Rising Blue, the test car had a rather discreet presence, a result perhaps of its minimal badging: garden-variety VW emblems front and rear and two diminutive Rs, one embedded in the narrow slit of a grille, the other affixed at the lower edge of the deck lid.
The new wooden buildings constructed by Gros and Laborde transformed the tandrotrano of traditional aristocratic Merina homes into the a decoratively carved post affixed at each end of the gable peak.
Toward the evening's end, when the brothers decided they didn't want to go home empty-handed, they exchanged a knowing glance, and Alberto kept himself in the running for one of the last pieces long enough to win it — a small canvas with cigarette butts affixed — at £121,250.
A modern bullet consists of a tube (the cartridge case) with the bullet affixed at the front end, the percussion cap or primer at the base, and the propellant powder contained in the tube between.
Until recently the jazz pianist and singer Barbara Carroll was affixed at the Bemelmans Bar in the Carlyle Hotel, plying her dry, refined pianism for a saloon audience that was often oblivious.
The red Westfield logo is affixed at key points to the street's façade.
