From the Pinhead icon set
A round manhole cover with visible bolt pattern around its edge.
You may copy, modify, and use this icon commercially without a copyright attribution requirement. Trademark, privacy, publicity, and other third-party rights can still apply.
View CC0 licenseA round manhole cover with visible bolt pattern around its edge. This solid icon belongs to Pinhead, a source set with 2,753 SVG records. Its recorded source grid is 15px. It is indexed under manhole cover, bolt pattern, infrastructure, access, bolted manhole, secured grate.
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