bolt

bolt

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Location
Currently not on view
Object Name
Bolt
Other Terms
Bolt; Tunnel-Lining-Ring, Hex Head
date made
1954
Physical Description
steel (overall material)
Measurements
overall: 4 1/2 in x 12 in x 5 1/8 in; 11.43 cm x 30.48 cm x 13.0175 cm
overall - from catalog card: 9 5/8 in x 1 1/2 in; x 24.4475 cm x 3.81 cm
ID Number
1987.0211.02
accession number
1987.0211
catalog number
1987.0211.02
Credit Line
Gift of James H. Reck
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Work and Industry: Civil Engineering
Data Source
National Museum of American History
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