Stock photography, photos: Monkey wrench & nut Stock photos of Monkey wrench tightening a bolt nut Photograph: © Terry Why Click for a larger image and more information Keywords associated with this stock photo: nut, bolt, spanner, turn, tighten, loose, wrench, monkey wrench, loosen, tight, grip, tool, twist, industry, build, construct, engineer, mechanical, machanic, power, strength, strain, stress, fit, move, screw