3/8-16 Grade 2 Finished Hex Nut – Hot-Dip Galvanized

3/8-16 Grade 2 Finished Hex Nut Hot Dipped Galvanized . Grade 2 Finished Hex Nuts are manufactured from low carbon steel, 1008-1010 for diameters up to 1 inch (cold-formed) and 1045 steel for diameters over 1 inch (hot-formed). Material is manufactured to meet or exceed ASTM A563 Grade A. Zinc plated material will meet or exceed ASTM F1941. Hot-Dip Galvanized material will meet or exceed ASTM A563. Hot-Dip Galvanized nuts are over tapped per ASTM A563. Hardness requirements of HRB 68 - HRC 32 are met or exceeded. Proof load strength of 90,000 psi minimum is met for plain or zinc plated material, 68,000 psi for Hot-Dip Galvanized material.

Spec information for 3/8 inch finished hex nuts:

Material - Grade 2 Steel:

• Low carbon steel
• Carbon: 0.47% max
• Phosphorus: 0.12% max
• Sulfur: 0.23% max

Hardness - Grade 2 Steel:

• Rockwell B68 - C32

Proof Load - Grade 2 Steel:

• Coarse thread: 90,000 psi
• Fine thread: 80,000 psi

General Characteristics:

• Type: Six-sided threaded fastener.

• Size: 3/8 inch nominal diameter.

Dimensions:

• Thickness: Approximately (0.875D) (where (D) is the nominal size). For a 3/8" nut, this translates to approximately 0.337 inches.

• Width Across Flats: (1.5D), which is about 0.562 inches.

For 3/8 inch hex nut:

• Basic Major Diameter: 0.3750 inches

• Width Across Flats: Max 0.562 inches, Min 0.551 inches

• Width Across Corners: Max 0.650 inches, Min 0.628 inches

• Thickness: Max 0.337 inches, Min 0.320 inches

Mechanical Properties:

• Tensile Strength: Minimum of 74,000 psi.

• Hardness: Rockwell hardness ranges from B68 to C32.

Plating:

• Hot-dip galvanized coating provides enhanced corrosion resistance, making these nuts suitable for outdoor applications and environments exposed to moisture and corrosive elements