Heavy Hex Bolts

Description

Description

Heavy Hex Bolts – ASTM A193 Grade B7 | MKM Fasteners

MKM Fasteners offers top-quality ASTM A193 Grade B7 Heavy Hex Bolts, designed for use in high-temperature and high-pressure applications. These bolts are manufactured from Chromium-Molybdenum Alloy Steel, making them ideal for critical industrial environments like oil & gas, petrochemical, power plants, and construction industries.

ASTM A193 B7 is one of the most commonly used bolt grades for medium to high-temperature service conditions. These bolts are quenched and tempered (heat-treated) to ensure excellent mechanical strength, durability, and corrosion resistance. They are suitable for applications up to 450°C (840°F) and meet the strict standards required for industrial fasteners.

ASTM A193 B7 Hex Bolt is a Bolting specification for medium-high temperature applications. Hence it is a heat treated Chromium Molybdenum steel and is considered for applications up to 450° Celsius (840° Fahrenheit). Likewise ASTM A193 Grade B7 bolts and threaded studs are manufactured from a chromium-molybdenum steel. Furthermore quenched and tempered (heat treated) to develop the desired mechanical properties (strength). Whereas Grade B7 is the most common grade of A193 bolts used in construction.
Vanadium is the main composition difference that separates B16 from B7. In Brief Allowing the higher temperature limits. Typically ASTM A194 Grade 4 Heavy Hex Nuts are specified with B16 studs & bolts, although Grade 7 is also fairly common.

Product Specifications:

• Product Name: Heavy Hex Bolt

• Category: Hexagon Bolt

• Material: Chromium-Molybdenum Alloy Steel

• Size Range: M5 to M42

• Strength Grade: Grade B7

• Standard Specification: ASTM A193 / A193M

• Thread Type: Metric or custom as per request

• Finish: Plain, Black, or Zinc-coated (available on demand)

Key Features:

• Excellent performance under high temperature and pressure

• Heat-treated for added strength

• Widely used in construction, pipeline, pressure vessels, and flange connections

• Compatible with ASTM A194 Grade 2H or Grade 7 heavy hex nuts

• Corrosion and oxidation resistant

Why Choose MKM Fasteners?
With in-house production and strict quality checks, MKM Fasteners ensures that each ASTM A193 B7 hex bolt meets international quality standards. We provide customized solutions for different industrial fastening needs, ensuring strength, safety, and long-lasting performance.

Choose MKM Fasteners for Reliable Heavy Hex Bolts – Built for Tough Conditions.