Tel:+(86)150-3002-9626
Email: wins@keqifastener.com
The Grade 12.9 Hex Head Bolts specification exceeds the standard 10.9 grade bolts.
The minimum ultimate tensile strength of the Grade 12.9 Metric Hex Head Bolts is about 1242 Mpa or 180,000 PSI, making them the highest grade of bolts produced.In fact, the Grade 12.9 Nuts is known for their high tensile strength.

Add:No.21 ofqixinzhai,Yongnian,Handan,Hebei, China
Tel:+(86)150-3002-9626
E-mail:wins@keqifastener.com Website:www.kegifastener.com