Materials - Carbon Steel Bolts in ASTM A307 (Grades A and B ) Scope ASTM A307 is the standard specification for carbon steel bolts , studs, and threaded rods of 60000 PSI tensile strength in sizes from inch to 4 inches in diameter. B : Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges. C* Nonheaded anchor bolts , either bent or straight, intended for structural anchorage purposes. The end of a grade C anchor bolt intended to project from the concrete will … ASTM A307 Bolts Materials – Carbon Steel Bolts in ASTM A307 (Grades A and B ) ASTM A307 is the standard specification for carbon steel bolts , studs, and threaded rods of 60000 PSI tensile strength in sizes from inch to 4 inches in diameter.

Grade C: Replaced by Specification F1554 Gr .36-The term studs includes stud stock, sometimes referred to as threaded rod.-This specification does not cover requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors or similar externally threaded fasteners .- A307 Grade B headed bolts have a heavy hex pattern head ASTM A307 specification covers the chemical and mechanical requirements for three grades (Grades A, B , and C) of carbon steel bolts , studs, threaded rods with minimum tensile requirement of 60 ksi. However Grade C has been replaced by ASTM F1554 Grade 36 Specification. Grade B , A307 heavy hex bolts are externally threaded fasteners made of carbon steel. Bolts designated as heavy hex bolts are very similar to standard hex bolts however the head size across the flats and across the corners is larger providing a broader bearing surface.

The ASTM A307 specification covers carbon steel. Bolts manufactured under this specification are very similar heremonly used specification Grade 2. Grade 2 is governed by the specification J429 by SAE International. Types. The types refer to the physical specification of the bolt – Hex Head, Heavy Hex Head, L-Shaped Anchor, DER, or ATR. Both A307 and F1554 grade 36 bolts are frequently manufactured using A36 steel. ASTM A307 is a specification that covers mild steel bolts . There are two grades within the ASTM specification. A307 grade A covers bolts for general applications, while A307 grade B covers heavy hex bolts and studs for cast iron flanges. ASTM A307 Scope - This specification covers carbon steel bolts and studs ranging from 1/4 through 4 diameter. This is your everyday, run of the mill bolt specification often manufactured using A36 . Nuts Spec/ Grade A307 Grades A A307 Grade B Washers Spec/ Grade 1/4 - 1-1/2 1-5/8 - 4 1/4 - 4

A307 -14e1 Standard Specification for Carbon Steel Bolts , Studs, and Threaded Rod 60 000 PSI Tensile Strength bolts ~ studs~ . Grade B . Bolts , studs, and threaded rod A having a tensile strength of 60 to 100 ksi and intended for flanged joints in piping systems with cast iron flanges, and.