WASHER, LOCK, FLAT-INTERNAL TOOTH
MATERIAL: Carbon Steel, Grade 1050 to 1064. hardness 40 to 50 HRC or equivalent.
Corrosion-Resistant Steel, Composition 410.
Corrosion-resistant Steel, 300 series (UNS S300XX), hardness 35-43HRc.
Phosphor Bronze, Composition A in accordance with QQ-P-750.
Tin-brass, CDA Alloy 425 (UNS CA42500).

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Slotted countersunk head screws with full dog point
Mechanical properties of fasteners made of carbon steel and alloy steel — Part 5 : Set screws and similar threaded fasteners not under tensile stresses
METRIC MULTI-GRIP FLUSH BREAK PULL MANDREL SELF-PLUGGING BLIND RIVETS
Overview of European Standards for fasteners
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