Buy Brand Brighton-Best International 1/4-20 Grade 2 Finished Hex Nut Zinc Plated, Model 1685001 online. Grade 2 Finished Hex Nuts Zinc Plated
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1/4-20 Grade 2 Finished Hex Nut Zinc Plated . 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.
Nominal Size: 1/4 inch
Basic Major Diameter: 0.2500 inches
Width Across Flats:
Maximum: 0.438 inches
Minimum: 0.428 inches
Thickness:
Maximum: 0.505 inches
Minimum: 0.488 inches
Steel Type: Low carbon steel
Chemical Composition:
Carbon: Maximum 0.47%
Phosphorus: Maximum 0.12%
Sulfur: Maximum 0.23%
Tensile Strength: Minimum of 74,000 psi
Hardness: Rockwell hardness ranges from B68 to C32
Proof Load:
Coarse thread: 90,000 psi
Fine thread: 80,000 psi
Zinc plating provides additional protection against moisture, salt, and other corrosive conditions, enhancing the durability and lifespan of the nut in various environments.
This combination of features makes the 1/4-20 Grade 2 finished hex nut zinc plated an excellent choice for various fastening needs.