Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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permanently
Unified Thread Identification
1.
Bolts:
A circular recess is stamped in the upper surface of the bolt head.
2.
Nuts:
A continuous line of circles is indented on one of the flats of the hexagon, parallel to the axis of the nut.
3.
Studs, Brake Rods, etc.:
The component is reduced to the core diameter for a short length at its extremity.