The holding-down bolts of twelve boilers and three triple-expansion engines, unintended to hold such weights from a perpendicular flooring, snapped, and down through a maze of ladders, gratings and fore-and-after bulkheads came these giant masses of steel and iron, puncturing the sides of the ship .

NEWYORKER: Unsinkable

In contrast, B2B marketing has long emphasized the nuts-and-bolts, behind-the-scenes work of marketing (the latter three items in my list).

FORBES: B2B Marketing: the Orphaned Stepchild