Description
Description
Heavy Hex Nut | Stainless Steel and Alloy Steel Fasteners – MKM Fastener IND LLC
MKM Fastener IND LLC offers premium Heavy Hex Nuts, designed to provide superior strength and durability in a variety of industrial applications. These heavy-duty nuts are engineered for high-performance use in combination with bolts, ensuring secure connections for critical assembly operations.
Manufactured from stainless steel grades SS 304 / SS 304L and SS 316 / SS 316L, these nuts deliver exceptional corrosion resistance, making them perfect for outdoor, marine, and high-humidity environments.
Compliant with ASME B 18.2.4.6 M and ASTM F 836 standards, these nuts meet high mechanical requirements, ensuring safety and reliability.
Product Specifications:
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Product Name: Heavy Hex Nut
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Thread Type: Metric & Inch
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Dimensional Standard: ASME B 18.2.4.6 M, ANSI B18.2.2
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Mechanical Standard: ASTM F 836
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Marking Grades & Proof Stress:
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F836 B: Min 500 MPa (SS 304 / SS 304L)
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F836 C: Min 500 MPa (SS 304 / SS 304L)
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F836 E: Min 550 MPa (SS 316 / SS 316L)
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F836 F: Min 550 MPa (SS 316 / SS 316L)
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8: 90 – 110 ksi (SS 304 / SS 304L)
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8M: 90 – 110 ksi (SS 316 / SS 316L)
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Size Range:
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Metric: M5 to M52
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Inches: 1/4” to 2”
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Key Features:
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Heavy-duty design ensures enhanced strength and durability
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Corrosion-resistant stainless steel grades suitable for various harsh environments
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Available in multiple sizes, ensuring compatibility with various bolt and screw types
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High tensile strength for secure and long-lasting fastening
Choose MKM Fastener IND LLC for Heavy Hex Nuts that provide superior quality and performance in critical applications.
| THREAD TYPE | DIMENSIONAL STANDARD | MECHANICAL STANDARD | MARKING | PROOF STRESS | MATERIAL | SIZE RANGE |
|---|---|---|---|---|---|---|
| METRIC | ASME B 18.2.4.6 M | ASTM F 836 | F836 B | Min 500 Mpa | SS 304 / SS 304L | Range: M5–M52 1/4″ to 2″ |
| F836 C | Min 500 Mpa | |||||
| F836 E | Min 550 Mpa | SS 316 / SS 316L | ||||
| F836 F | Min 550 Mpa | |||||
| INCHES | ANSI B18.2.2 | ASTM A194 | 8 | 90 – 110 ksi | SS 304 / SS 304L | |
| 8M | 90 – 110 ksi | SS 316 / SS 316L |



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