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02-05-23 | 07:22 PM

#8

dedhed

SE Wis

Joined: Apr 2005

Posts: 11,548

Likes: 4,329

From: Milwaukee, WI

Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970

Gas and water utilities use pentagon bolts (13/16") for access boxes and certain automotive applications as well.

https://www.amazon.com/CTA-Tools-275...A%3D%3D&sr=8-9

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