Screw, 64mm long

Made:
1927-01-23
maker:
Sherard Osborn Cowper-Coles
Screw, 64mm long

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Screw, 64mm long
Science Museum Group
© The Board of Trustees of the Science Museum

Screw, 64mm long, sherardized by Cowper Coles on 23/1/27 using a mixture of zinc dust, pumice, and 0.3% resin.

Details

Category:
Metallurgy
Object Number:
2002-149
Materials:
steel (metal) and zinc (metal)
Measurements:
: 2.5197 in.; 64 mm
type:
sherardized screw
credit:
Mr. Peter Cowper-Coles.