ASTM A193 Grade B7 Specification for high tensile bolts, screws, stud bolts, threaded rods, anchor bolts and other externally threaded fasteners, made from chromium-molybdenum alloy steel.

Grade B7 is the most common grade of A-193 B7 alloy steel bolt material that is regularly utilized within the construction industry. ASTM A-193 B7 stud bolts are manufactured from chromium-molybdenum steel and are heat treated to provide increased strength and reliability.

Choose from our selection of grade B7 steel bolts, including hex head screws, socket head screws, and more. Same and Next Day Delivery.

A193 Grade B7 is the most commonly used Bolt specification coupled with A194 Grade 2H Nuts for Bolting Carbon Steel pipeline. A193 B7 bolting is available in metric sizes from M6 to M180 and imperial sizes from 1/4 to 7 inches, in diameter.

The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature or high-pressure service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings.

Grade B7 bolts are commonly used in pipe flange connections. These bolts are typically bought and sold in a plain, bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated, or otherwise coated for corrosion resistance.

As an ISO 9001:2008 certified manufacturer, we supply ASTM A-193 grade B7 stud bolts to industrial projects all over the world. Known for their adequate strength while also being commercially available, we carry A-193 B7 threaded bar up to 6″ in diameter. In addition, we carry metric B7 studs too.

Feb 20, 2025 · Explore the ASTM A193 Grade B7 bolts and fasteners, their composition, mechanical properties, manufacturing process, applications, and best practices for selection and maintenance in high-temperature and high-pressure environments.

ASTM A193 Grade B7 stud bolts are high strength fasteners manufactured from a chromium-molybdenum steel and are quenched and tempered. Dimensional specifications are governed by ASME B18.31.2. Grade markings consists of both the grade symbol "B7" and the manufacturer's identification mark on one end of each stud 3/8" diameter and larger.

Stud Bolts - B7 Metric and 2 x 2H Nuts - Cadmium + PTFE Green. 2 Variations . Stud Bolts - B7 Metric and 2 x 2H Nuts - Galvanised. 10 Variations . Stud Bolts - B7 Metric and 2 x 2H Nuts - Plain. 25 Variations . Stud Bolts - B7 UN8 and 2 x 2H Nuts - BREMKOTE XX. 27 Variations .