Also known as / standards: Button Head Cap Screw · BHCS · ISO 14580 · ISO 14581 · ISO 14583 · TORX · HEXALOBULAR · 6-LOBE · SIX LOBE · STAR DRIVE · ISO 14579 · ISO 10664 · JIS B 1107 · JIS B 1136
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Button head socket screws have a low domed head that looks tidy and will not snag — typical on covers, handles and any surface people touch. Lower profile than a cap screw, but lower torque capacity too.
Also known as Button Head Cap Screw · BHCS
Standards ISO 7380-1 · ISO 7380-2 · DIN 7380 · JIS B 1174
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