Bright Bolting Grade – ASTM A193 B7 / ASTM A320 L7 (Metric Sizes)

At our Wolverhampton facility, Midland Bright Steels stock a comprehensive range of bright bolting grade materials in metric sizes, compliant with ASTM A193 B7 and ASTM A320 L7 standards. These materials are designed to provide exceptional strength, durability, and resistance to extreme temperatures, making them ideal for demanding applications across industries such as construction, petrochemical, engineering, power generation, and heavy machinery manufacturing.

Extensive Stock Availability – No Minimum Order!

We understand the importance of having the right materials readily available to keep your projects moving. That’s why we maintain a large stock of metric-sized bright bolting grades, ensuring that our customers have access to high-quality, precision-engineered materials when they need them.

Below, you’ll find a list of the metric sizes and grades we currently stock. If your required size or grade isn’t listed, don’t worry—we can source additional stock on request.

No minimum order quantity – Whether you need a single piece or a bulk order, we are here to help!
Custom orders available – Let us know your specific requirements, and we’ll do our best to supply exactly what you need.

Available Sizes & Grades – Bright Bolting Grade ASTM A193 B7 / ASTM A320 L7 (Metric)

8mm	•
8.90mm	•
10mm	•
10.77mm	•
12mm	•
14mm	•
14.32mm	•
16mm	•
18mm	•
20mm	•
24mm	•
25mm	•
27mm	•
30mm	•
33mm	•
36mm	•
40mm	•
42mm	•
45mm	•
48mm	•
60mm	•
65mm	•
70mm	•
75mm	•
80mm	•
85mm	•
90mm	•
100mm	•
110mm	B7 ONLY •
120mm	B7 ONLY •
135mm	B7 ONLY – BLACK •

If you require a size or grade that is not listed, we encourage you to contact us, as we may be able to source or manufacture a solution tailored to your project needs.

Why Choose ASTM A193 B7 & ASTM A320 L7 Bright Bolting Materials?

These industry-standard bolting materials are used in high-pressure, high-temperature, and cryogenic environments, offering reliability and performance under extreme conditions.

Key Features & Benefits:

Exceptional Strength – Designed for high-tensile and high-yield applications.
Corrosion & Heat Resistance – Suitable for use in harsh industrial environments.

Precision Engineering – Manufactured to tight tolerances for consistent quality.
Versatile Applications – Used across engineering, construction, petrochemical plants, and energy sectors.
Readily Available Stock – With our extensive inventory, we can fulfil orders quickly and efficiently.

Common Applications of Bright Bolting Grade Materials

These high-performance bolting materials are used in various industries where strength, reliability, and resistance to extreme temperatures are critical. Some of the key applications include:

Oil & Gas Industry – Essential for pipeline infrastructure, valves, and offshore drilling platforms.

Energy & Power Generation – Used in steam turbines, boilers, and power stations.

Heavy Machinery & Engineering – Ideal for structural supports, machinery assembly, and industrial frameworks.

Petrochemical & Chemical Processing Plants – Perfect for use in corrosive and high-pressure environments.

Cryogenic Applications – ASTM A320 L7 is specifically designed for low-temperature applications.

If you’re unsure which grade is best for your specific application, our expert team is here to offer advice and help you make an informed decision.

Why Buy from Us?

At our Wolverhampton-based facility, we are dedicated to providing high-quality bolting solutions that meet industry standards and exceed customer expectations. Here’s why we’re a trusted supplier:

• Extensive Stock Range – A wide selection of metric sizes available for immediate dispatch.
• Fast & Reliable Delivery – We understand the importance of timely supply for your projects.
• No Minimum Order – Buy only what you need—whether it’s one bolt or a full bulk order.
• Special Orders Available – We can source, customise, or manufacture bolts to your requirements.
• Knowledgeable & Supportive Team – Our experts are available to offer guidance and assistance.

How to Place an Order

Ordering from us is simple and hassle-free. If you need further details about our stock, availability, or delivery options, please reach out to us:

Call us on: 01902 341705
Email us at: enquiries@midlandbrightsteels.co.uk

We are committed to providing top-quality materials with a fast turnaround, ensuring you have the right bolts for your project, exactly when you need them.

Contact us today to check stock availability, request a quote, or discuss your specific requirements!