Grade 10.9 Flange Bolt
DIN6921 Grade 10.9
Size M12-1.75X70mm
DIN Standard specifications
Class 8.8, 10.9, 12.9 optional
Surface Treatment: Ruspert Coating or Dacromet
ANSI B18.2.1 and other standard specifications available!

Contact us at hexbolts. Cn for full catalogue and price list!


Hex flange bolt is a one-piece forged bolt with a hex washer head. The washer head always in 2 types, serrated flange and smooth flange, the so called flat bearing surface. Hex flange bolts always made by medium carbon steel, alloy steel and stainless steel.
Metric series carbon steel hex flange bolts generally supplied in class 8.8, class 10.9 and class 12.9 as perDIN6921 and ISO standard. Surface treatment could be in black oxide, galvanizing, dacromate. Stainless steel hex flanged bolts also available in SS304 and SS316, Class A2-70 and A4-80.
Inch series as per ANSI B18.2.1 dimensions always supplied in Grade 5 and Grade 8 according to SAE standard in carbon steel and alloy steel. 18-8 stainless steel hex flanged screws also available.


Transhow Fasteners, manufacture various bolts, hex bolts, round head bolts, square head bolts,
T head bolts, dog head bolts and other customized bolts, special use bolts.
Metric standard bolts as DIN, EN, ISO, GB, JIS, AS, UNI, etc.
Inch standard bolts as ASME/ANSI, ASTM/SAE/IFI, BS, etc.
Material used for producing the bolt could be carbon steel, alloy steel, stainless steel and brass.
Headed bolts for size below M24 (or 1 inch) generally Cold forged and bigger sizes will be hot forged.
For various corrosion resistant and strength purpose, our bolts could be further treated such as heating, black oxide, zinc coating, hot dipper galvanizing, black zinc coating, brass coating, nickle and chrome plating, dacomate, etc. Interested buyers please contact us now!