Dia/Thread Size: 1/4″-20
Thread: Coarse
Grade: 18-8
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Finish: Plain
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This bare metal surface has no finish for improving appearance or corrosion resistance, which is very low if the material is steel. Often the surface has been oiled, which improves lubricity. Plain finish fasteners can be used indoors or in outdoor environments where corrosion protection is not an issue.
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