A193 Grade B7M Bolts are manufactured from AISI 4140/4142 low Carbon Alloy Steel Grades followed by quencing & tempering. ASTM A93 B7M Bolts : A193 B7M Bolts,Grade B7M Bolts,A193 Grade B7M,SA 193 B7M bolts,B7M Studs,B7M Studs Material,B7M Threaded Rod,B7M Threaded Bar …
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