Location Pin Symbol
Location Pin Symbol
(OP)
Dear Friends
I am attaching a drawing, which has BLACK trangles in circle. some are 1/8 (SN 1 & 2), some are 1/4 ((SN 3 & 4), ), some 1/8 with a line in it ((SN 5 & 6). Any body can explain what is the meaning of this symbol. Is it location pin symbol?
Avinash Puri
I am attaching a drawing, which has BLACK trangles in circle. some are 1/8 (SN 1 & 2), some are 1/4 ((SN 3 & 4), ), some 1/8 with a line in it ((SN 5 & 6). Any body can explain what is the meaning of this symbol. Is it location pin symbol?
Avinash Puri





RE: Location Pin Symbol
RE: Location Pin Symbol
Different marks identify different holes; not necessarily different diameter, but possibly different fit, and/or positional tolerance.
This technique is beneficial for large parts with hundreds of holes, but could be used elsewhere.
Some time ago it was standard practice, but I don't see it in modern books.
Could someone point out to relevant ASME or ISO standard?
RE: Location Pin Symbol
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com
RE: Location Pin Symbol
Frank