Buy Brand Stelfast, Inc. 1/4-20 Grade 2 Finished Hex Nut Hot Dipped Galvanized, Model 1685002 online. Grade 2 Finished Hex Nuts Hot Dipped Galvanized
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1/4-20 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.
General Characteristics:
Type: Six-sided threaded fastener.
Size: 1/4 inch nominal diameter.
Dimensions:
Thickness: Approximately (0.875D) (where (D) is the nominal size). For 1/4" nuts, this translates to approximately 0.219 inches.
Width Across Flats: (1.5D), which is about 0.375 inches for a 1/4" nut.
For 1/4 inch hex nut:
Basic Major Diameter: 0.2500 inches
Width Across Flats: Max 0.438 inches, Min 0.428 inches
Width Across Corners: Max 0.505 inches, Min 0.488 inches
Thickness: Max 0.226 inches, Min 0.212 inches
Material Composition:
Made from low carbon steel with the following chemical composition:
Carbon: Maximum 0.47%
Phosphorus: Maximum 0.12%
Sulfur: Maximum 0.23%
Mechanical Properties:
Tensile Strength: Minimum of 74,000 psi.
Hardness: Rockwell hardness ranging from B68 to C32.
Proof Load:
Coarse thread: 68,000 psi
Fine thread: 60,000 psi
Plating:
Hot-dip galvanized coating for enhanced corrosion resistance, making these nuts suitable for outdoor and harsh environments where moisture and salt exposure are concerns