Answer: screws

AnswerCrossword Clue
SCREWS

Ship's propellers.

SCREWS

Assembly needs, frequently

SCREWS

Uses a Phillips driver

SCREWS
Threaded nails
SCREWS
Twists to tighten
SCREWSBeds, less politely
SCREWSHardware store binful
SCREWSThings driven on construction sites
SCREWSHardware store boxful
SCREWSPressure, metaphorically
SCREWSHardware items
SCREWSFasteners
SCREWSGuards in a slammer
SCREWSPropellers on ships
SCREWSThreaded fasteners
SCREWSPropellers.
SCREWSSkinflints.
SCREWSContorts.
SCREWSRelatives of bolts
SCREWSHardware buys
SCREWSTwisty items
SCREWSPhysical coercion
SCREWSHoosegow guards
SCREWSCalaboose guards
SCREWSPrison guards, slangily
SCREWSThey have threads and heads
SCREWSCarpenter's supplies
SCREWSMesses (up)