Related Clues:

• It's groovy
• Fastener, one on prison door?
• Fastener with threading
• Fastener with a twist
• Fastener twisted into wood
• Casual wages of small gang
• It has a head and a thread
• First in sewing team, one has a thread
• 'Righty tighty, lefty loosey' subject
• You may drive one in a garage
• Fastener tightened by rotating
• Helical thread
• Fastener with a ridge
• What propels boat south -- oarsmen?
• Twisted-in metal fastener