Historical clue formulations

• Bit of threaded hardware — 2026-08-07
• Woodworking fastener — 2024-12-04
• Threaded fastener — 2024-11-12
• Fastener that's one letter ahead of "U-bolt" in the dictionary — 2024-09-22
• Letter-shaped fastener — 2023-03-28
• Bit of letter-shaped hardware — 2022-03-31
• Fastener that leaves a flush surface — 2021-05-23
• Certain bolt holder — 2020-12-27
• Threaded fastener — 2020-06-24
• Letter-shaped fastener — 2020-04-19
• Bit of letter-shaped hardware — 2020-03-29
• Hardware fastener — 2020-01-10
• Flanged fastener — 2019-09-15
• Letter-shaped fastener — 2019-06-30
• Fastener with a flange — 2018-11-25
• Letter-shaped fastener — 2018-11-14
• Fastener named for its shape — 2018-11-06
• Metal fastener — 2018-08-26
• Letter-shaped fastener — 2018-08-12
• Flush fastener — 2018-07-19
• Hardware bit — 2018-07-13
• Fastener with a flange — 2018-05-02
• Letter-shaped fastener — 2017-04-23
• Letter-shaped metal fastener — 2016-11-28
• Fastener designed to leave a flush surface — 2016-09-11
• Letter-shaped fastener — 2016-07-06
• Letter-shaped fastener — 2016-04-06
• Hardware bit — 2016-02-05
• Carpentry fastener — 2015-09-13
• Flanged fastener — 2015-07-01
• Letter-shaped fastener — 2015-06-01
• Letter-shaped bolt fastener — 2014-01-06
• Letter-shaped fastener — 2013-10-14
• Carpentry fastener — 2013-06-30
• Letter-shaped fastener — 2013-04-29
• Letter-shaped fastener — 2012-08-28
• Flanged fastener — 2011-10-13
• Hardware bit — 2011-05-12
• Wide-headed fastener — 2010-11-20
• Carpentry fastener — 2009-12-27
• Letter-shaped fastener — 2009-04-07
• Hardware fastener — 2008-10-12
• Letter-shaped fastener — 2008-09-12
• Construction bit — 2008-05-11
• Wide-headed fastener — 2008-03-16
• Threaded holder — 2007-07-14
• Bit of hardware — 2006-12-29
• Carpenter's metal piece — 2006-12-11
• Letter-shaped hardware item — 2006-10-04
• Bolt holder — 2006-09-17