GB900-88 stud bm = 2d
Standard classification: size standard standard system: national standard (GB) shape classification: stud details: mechanical performance grade steel has 4.8 grade, 5.8 grade, 6.8 grade, 8.8 grade, 10.9 grade, 12.9 grade; Stainless steel has A2-50 and A2-70. Can be used 40Cr,35CrMoA,45#,304 and other materials to make the stud. Double-end stud with thread diameter M12 ~ M48,bm = 2d.
Standard Classification: | Size Standard |
standard system: | National Standard(GB) |
Shape classification: | Stud |
Detailed Description: | Mechanical properties of grade steel are4.8Class,5.8Class,6.8Class,8.8Class,10.9Class,12.9Grade; stainless steel hasA2-50,A2-70。 Can be adopted40Cr,35CrMoA,45#,304Materials such as manufacturing studs. Thread diameter isM12~M48, bm=2d of the double-headed studs. |
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