A square around the NW digit in the quadrant of a fastner would indicate
- interference fit fastener.
- hi-lock to be used
- fluid tight fastner.
Explanation from PART66Online
A square drawn around the digit in the north-west quadrant of the fastener code is a convention flagging a fluid-tight fastener, alerting the technician that the installation must seal against fluid. It does not by itself denote an interference fit or a specific Hi-Lok part.
L
Leehenson asked · 18 Sep 2016
Can someone help explain quadrants of fasteners please? Thanks.
Community Comments (1)
L
Leehenson
18 Sep 2016
Understand now.
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