Related Clues:

• Apply backspin (snooker)
• Head-turner's hardware?
• Eyeglass kit item
• *Hardware insertion point
• You might drive it right into a wall
• Common fastener
• Threaded hardware
• Stitch up something with a thread
• Threaded object
• Install, as a bulb, with 'in'
• Prison guard, slangily
• Tapered fastener
• Bookcase fastener
• Fastener, rivet
• Fastener made by special workers on ship