1) Beds, less politely 2) Bits of hardware 3) Calaboose guards 4) Common automotive fasteners 5) Dorset slang for rheumatism 6) Grooved nails 7) Guards in a slammer 8) Hardware buys 9) Hardware store boxful 10) Hinge fasteners 11) Hockey skates parts 12) Hoosegow guards 13) Little bits of hardware 14) Physical coercion Found on https://www.crosswordclues.com/clue/screws
Metal screws with tapering, threaded bodies and slotted heads were first used during the early decades of the 18thC. Early threading was hand-filed; lathe-turned screws date from the second half of the 18thC, and sharp-pointed, machine-made screws from the mid-19thC. Found on http://www.encyclo.co.uk/visitor-contributions.php