Heavy Hex Nuts

Heavy Hex Nut Specifications

Fastener Solutions’ heavy hex nuts are available in a wide range of material options to suit your industry's and project’s exact specifications. View our various options by material below.

Steel

Fastener Solutions’ heavy hex nuts are offered in a variety of different steel grades and can be used in numerous applications. We offer the following options:

• 2H Heavy Hex Nut, A194 / Sa 194, Plain (Inch)
• 2H Heavy Hex Nut, Taiwan / Korea, A194 / Sa 194, Plain (Inch)
• USA 2H Heavy Hex Nut, A194 / Sa 194, Plain (Inch)
• Heavy Hex Nut, A563 A, Plain (Inch)
• Grade C Heavy Hex Nut, A563, Plain (Inch)
• USA Grade C Heavy Hex Nut, A563, Plain
• Grade Dh Heavy Hex Nut, A563, Plain (Inch)
• USA Grade Dh Heavy Hex Nut, A563, Plain (USA)(Inch)

Zinc Plated

Zinc electroplated steel fasteners provide enhanced corrosion resistance and are used for a broad range of industrial and outdoor applications. Zinc plated steel nuts are also less expensive than stainless steel heavy hex nuts for non-specialized applications.

• 2H Heavy Hex Nut, A194 / Sa 194, Zinc Cr+3 (Inch)
• A563 A, Zinc Cr+3 (Inch)
• A563 A, Zinc Yellow (Inch)

Hot Dipped Galvanized

Hot dipped galvanized steel utilizes zinc as a sacrificial coating layer. The difference between galvanized and standard zinc coating is that a thicker layer can be applied through the galvanization process, adding increased corrosion resistance.

• 2H Heavy Hex Nut, A194 / Sa 194, Hot-Dip Galvanization (Inch)
• A563 A, Hot-Dip Galvanization (Inch)

Hot Dipped Galvanized Wax & Blue Dye

Wax and blue dyed heavy hex nuts are hot dipped galvanized and then treated with an additional wax lubricant. The blue dye makes the lubricated nuts easy to identify, eliminating potential confusion.

• USA 2H Heavy Hex Nut, A194 / Sa 194, Hot-Dip Galvanization Blue Dye & Wax (Inch)
• Grade Dh Heavy Hex Nut, A563, Hot-Dip Galvanization/Wax & Blue Dye (Inch)
• USA Grade Dh Heavy Hex Nut, A563, Hot-Dip Galvanization / Wax & Blue Dye (Inch)

Heavy Hex Nut vs Standard Hex Nut

The main factor that differentiates a heavy hex nut from a standard one is size. Heavy hex nuts are large, heavy, and visibly thicker than their standard counterparts. Heavy hex nuts also provide increased load strength compared to standard nuts, making them ideal for more demanding applications or critical structural functions.

Differences Between ASTM A194 2/2H & ASTM A563 A/DH Heavy Hex Nuts

ASTM A194 carbon and alloy steel structural nuts are commonly utilized for high pressure and temperature applications. Conversely, ASTM A194 2/2H heavy hex nuts are regularly used in applications that display lower temperatures and pressures. ASTM A563 is the most referenced ASTM specification for carbon and alloy steel nuts. It includes 8 grades and covers sizes from 1/4" to 4".

Contact Fastener Solutions with Your Heavy Hex Nut Specifications

For more information regarding our heavy hex nut options, get in touch with our sales team, or request a quote for direct pricing today. Fastener Solutions is your trusted source for wholesale and bulk fastener products.