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Tapered threads on central crown stays
Cutting the tapered threads on a stay bolt


Tapered threads on central crown stays

Saturday, October 26, 2013 by MC

The central rows of crown stays have tapered threads on the firebox end and straight threads in the boiler. We are tapping the tapered threads from inside the firebox and then threading them in from below.

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Astoria Railroad Preservation Association
P.O. Box 541
446 W. Marine Dr.
Astoria, Oregon 97103
(503) 325-5323
e-mail: info@astoriarailroad.org

An Educational Non-Profit Corporation
Dedicated to Promoting Public Awareness of Railroad History
Through the Preservation and Operation of Vintage Railway Equipment.

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