Welcome Back

Sign in to your PART66Online account

or use email
Forgot password?

Don't have an account? Register here

Module 6. Materials & hardware

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

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.

Leehenson asking:

Can someone help explain quadrants of fasteners please? Thanks.

Community Comments (1)

L
Leehenson Posts: 2 18.09.2016 / 17:00
Understand now.

Please Sign In to post a comment.

We use essential cookies to keep you signed in, plus anonymous analytics to understand how the site is used. Cookie-based analytics is set only with your consent. See our Privacy & Cookie Policy.