SCREWS, MACHINE, PAN HEAD, CROSS-RECESSED, SELF-SEALING, INTEGRAL FLUOROSILICONE O-RING, PLAIN AND SELF-LOCKING
(a) SCREW: CORROSION-RESISTING STEEL (CRES) IN ACCORDANCE WITH MIL-S-82496.
(b) 0-RING: FLUOROSILICONE RUBBER, COMPOSITION B IN ACCORDANCE WITH MIL-S-82496 (RESISTANT TO MIL-H-5606 HYDRAULIC FLUID AND TYPE III FUEL OF TT-S-735).

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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