The Trusted B7 Bolt Source

B7/2H Stud Bolt Kits - Quality Under Pressure

On the mine site, oil rig, gas refinery, water pipeline or anywhere industrial-grade fixings are required, there is much scrutiny around the properties of bolting materials. You need a supplier by whom this scrutiny is well-understood, in order to preserve a safe environment for contractors and maintain an efficient operation.

For infrastructure that requires fasteners for high temperature or high pressure service, trust Australasia’s premier B7 bolt provider, AF Industrial. Our materials and manufacturing partners are heavily-monitored and analysed for full compliance and effectiveness.

With decades of experience and a thorough understanding of all heavy industries and their requirements for fasteners, AF Industrial (AFI) offer a consultative and professional approach to helping major companies solve connection and safety issues around the worksite. And with a fast turnaround time on manufacture, many major players around Australasia look to AFI first for replacement fasteners during shutdowns, and for new solutions for projects being developed from the ground up.
Get in touch with AF Industrial.

On Hand, to Lend a Hand

With constant review of stud bolts, hold down bolts and more being standard regulatory procedure, AF Industrial is on hand to advise and develop customised solutions that will make sure that your infrastructure continues to operate and make money. If a bolt’s integrity is compromised, repair welding is strictly prohibited. The product needs replacing. All around Australasia, let AF Industrial help you get back up and running in no time, whether it’s about a B7 bolt or anything else.

Coating Option

Plain (U)
Galvanised (G)
Zinc (Z)
Zinc Nickel (ZN)

Inorganic Zinc Silicate (S)
Zinc Yellow (Y)
Cadmium (C)
Xylan (Blue) (XB)

Xyaln (Custom Colour)
Molybdenum ‘Moly’ Disulfide (MB)
Phosphate & Oil (PO)

Bolt Properties

AF Industrial are your destination for solid advice and technical data, so you know that your operations are safe and compliant. The correct chemical and mechanical properties are critical for the performance of the product and strict data-based proof that you are using the correct fastener for a given weight bearing.

A B7 bolt is classed as a high tensile bolt. Made from ferritic steel—high chromium, magnetic stainless steel with low carbon content—these bolts are a very common choice for the securing of pressure vessels, valves, fittings and flanges. They can withstand temperatures of up to 1100°F/600°C and extremely high pressures, and are commonly matched with 2H heavy hex nuts. Here are the properties:

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min	HBW	HRC
B7	Up to 2-1/2	125	105	16	50	321 max	35 max
	2-5/8 - 4	115	95	16	50
	4-1/8 - 7	100	75	16	50

B7 / 2H

Studbolt Kit

ASTM B7

A193/A193M

2H A194/A194M

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