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Anchor Bolts & Fasteners with ASTM A307 Specification

B&B Electro-Mechanical (BBEM) maintains a huge inventory of ASTM A307-approved anchor bolts and fasteners. Request a quote on the ASTM A307 anchor bolts you need, or contact us for more information.

What is ASTM A307?

ASTM A307 is a specification from ASTM International for carbon steel bolts and studs between 1/4” and 4” in diameter. Anchor bolts specified by ASTM A307 are grouped into three “grades” based on tensile strength and intended use.
ASTM A307 Grade A anchor bolts have a minimum tensile strength of 60ksi, and are intended for “general” applications.
ASTM A307 Grade B anchor bolts have a tensile strength between 60ksi and 100ksi, and are intended for flanged joints in piping systems with cast iron flanges. These bolts have heavy hex-patterned heads.
ASTM A307 Grace C anchor bolts, also covered under ASTM F1554 Gr. 36, are manufactured from low carbon steel with tensile strength up to 36ksi and are intended to anchor structural supports in concrete foundations.

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