Sex bolts & Mating screws

Sex bolts resemble machine screws, but with internal threads, and can be used with either specialized mating screws or standard machine screws. Also known as barrel nuts and Chicago bolts.
Sex bolts & Mating screws |
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![]() Sex boltsSex bolts, also known as Chicago bolts, resemble machine screws, but with internal threads. |
![]() Mating screwsMating screws have an unthreaded shoulder that is the same diameter as the outside of the sex bolts they are used with. |