​A hand-drawn vector asset sheet of individual, highly detailed engineering primitives arranged in rows on a solid white background. ​Objects include: ​Hardware: wood screws, rivets, flat-head fasteners, Phillips screw heads, threaded bolts, washers, small mechanical springs. ​Clocks & Gears: hour, minute, second clock hands, miniature clockwork gears, curved rotation arrows, spiral gears. ​Graphics: technical drawings of human hands writing with a pen, inkwells, drafting dividers, mini compasses. ​Formulas: "E=mc²", "∫f(x)dx", "ω=const", dimensions "15mm", "Ø8mm", "±0.1". ​Style: Hand-drawn line art aesthetic with crisp sketchy textures, solid dark sepia lines (#3a2408). All icons are isolated with wide white space between them, zero overlap, perfect for vector export.

The image shows a set of black and white gears and screws on a white background. The gears are arranged in a neat pattern and the screws are of various sizes and shapes. The text accompanying the image provides further details about the gears.