Houston, TX Industrial District
Product Category 02 • High-Strength Industrial Fasteners

ASTM A193 Grade B7 Stud Bolts

Enviro Industrial supplies ASTM A193 Grade B7 stud bolts for demanding industrial and construction applications. Manufactured from chromium-molybdenum alloy steel and heat-treated for increased tensile and yield strength.

Material StandardASTM A193 Grade B7AISI 4140/4142 Cr-Mo Steel
Tensile Strength125,000 PSI MinYield: 105,000 PSI Min
Matching NutsASTM A194 Grade 2HHeavy Hex Pattern
Typical ApplicationsPiping, Flanges & ValvesPressure vessels & wellheads
Color Coated PTFE & Xylan ASTM A193 B7 Stud Bolts

PTFE & Fluoropolymer Coatings

High-visibility colored Xylan / PTFE coating systems

Industrial Coated B7 Fastener Assemblies

Severe-Duty Coated Studs

Custom anti-corrosion barrier finishes with 2H nuts

Plain Bare Alloy & Zinc Plated B7 Stud Bolts

Plain & Zinc Plated Finish

Bare alloy, clear zinc, and galvanized stud stock

Available Finishes & Coatings

Select the optimal coating to prevent environmental corrosion, thread galling, and facilitate rapid disassembly

Standard

Plain Finish (Bare Alloy)

Uncoated, heat-treated chromium-molybdenum alloy steel studs suitable for standard temperature industrial service where external coating is not specified.

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Electro-Plated

White Zinc Plated

Provides clear or blue-bright zinc electroplated sacrificial corrosion protection for atmospheric indoor or moderate outdoor installations.

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Severe-Duty

Yellow Cadmium Plated

Specialized cadmium coating offering high corrosion resistance, lubricity to prevent galling during torque-up, and chemical compatibility in harsh marine atmospheres.

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Low-Friction & Marine

Blue Xylan / PTFE Fluorocarbon Coated

Resin-bonded PTFE fluorocarbon coating providing superior chemical resistance, low friction coefficient for accurate make-up torque, and easy breakout during plant maintenance.

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Heavy Corrosion Barrier

Hot-Dip Galvanized

Thick metallurgical zinc layer for maximum outdoor weathering resistance, offshore platforms, wastewater treatment, and exposed industrial infrastructure.

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Your Trusted Source for B7 Stud Bolts

Enviro Industrial provides dependable B7 stud solutions to support industrial maintenance, construction, turnaround, and piping applications. Contact our Houston team to discuss available diameters (1/2" up to 4"+), custom cut lengths, coatings, and bundled 2H nuts.

  • Complete Material Test Reports (MTRs) provided with heat lot traceability
  • Domestic and approved import options available for client AML specs
  • Full stud packs with matching 2H heavy hex nuts pre-bagged on request
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