Staybolt Tap
date: label: Date made
content: 1940s
label: date made
content: ca. 1940s
name: label: maker
content: unknown
notes: label: Description
content: Staybolt taps were used by boilermakers when installing or repairing the fireboxes of steam locomotives. Taps" are designed to cut threads into drilled holes, so that threaded bolts or threaded machine screws can be screwed in. The long tap was screwed into pre-drilled holes through the boiler's outer steel shell and into the steel firebox within the boiler. The tap cut threads into the hole in the outer boiler shell and also into a corresponding hole in the firebox. The tapped hole permitted a "staybolt" to be inserted and screwed into place; each staybolt held the boiler shell and the firebox firmly together."
label: Description
content: This tool is part of a collection of hand tools used in the inspection and repair of steam locomotives in Salisbury, North Carolina from the early- to the mid-20th century, roughly 1900-1955. Light repairs on steam locomotives were usually done in roundhouses at the many small locomotive terminals
topic: label: Subject
content: Railroads
setName: label: See more items in
content: Work and Industry: Transportation, Railroad
label: See more items in
content: Work
label: See more items in
content: America on the Move
label: See more items in
content: Transportation
label: Exhibition
content: America On The Move
label: Exhibition Location
content: National Museum of American History
creditLine: label: Credit Line
content: Gift of National Park Service
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2002.0075.02
label: catalog number
content: 2002.0075.02
label: accession number
content: 2002.0075
objectType: label: Object Name
content: Staybolt tap
physicalDescription: label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: 18 in; x 45.72 cm