SCREW, CAP, SOCKET HEAD, FLAT COUNTERSUNK, 82°, CORROSION-RESISTING STEEL, UNC-3A
MATERIAL: STEEL CORROSION-RESISTING, IN ACCORDANCE WITH FED. STD No 66; AISI 302. 303. 304, 305. 316 OR 384 (DEVELOPED FOR COLD HEADING). MINIMUM ULTIMATE TENSILE STRENGTH SHALL BE 80.000 PSI FOR SIZES THRU 0.625 AND 70.000 PSI FOR SIZES OVER 0.625.

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Slotted countersunk head screws with full dog point
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Prevailing torque type hexagon thin nuts with nonmetallic insert
Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread (ISO 12125: 1997, modified) English version of DIN EN 1666