It's actually very hard to do in Photoshop because your bolt in certain areas has the same color as the background. If you reduce black levels in photo shop (or increase white levels), the background goes white but so does your bolt. In other words, you cannot manipulate the whole photo by playing around with black and white. You would have to isolate the bolt (which is also very difficult due to it's round shape). More time consuming than difficult.
I'm not so sure this pic would look as nice with a pure white background...
Manipulating white levels in the raw software, would also cause your bolt to be overexposed. I'm not a good photographer, so adding light to the background is obviously the only answer.