DIN7990 Hex Bolts For Steel Structures

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Hex head bolt is the most commonly used in the series of fasteners, used with nut.
The grades of bolts are 4.8, 5.6, 6.8, 8.8, 10.9, 12.9, etc. Among them, the bolts of grade 8.8 and above are made of medium carbon steel or alloy steel and heat treated, which are generally called high-strength bolts, and the rest are generally called ordinary bolts. 
About DIN7990, DIN7990 Hex Bolts For Steel Structures is usually made into high-strength hex bolt, such as grade 8.8, 10.9. The surface treatment is black. The bolt performance grade label consists of two parts of numbers, which respectively represent the nominal tensile strength value and yield ratio of the bolt material. 

Product Parameter (Specification)

Standard	DIN,ASTM/ANSI JIS EN ISO,AS	Material	medium carbon steel,  Alloy steel
Surface Treatment	Zinc Plated, Hop Dip Galvanized(HDG) phosphorization, Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated	Shank	Full thread, Half thread
Grade	8.8, 10.9, 12.9	Size	M5-M56
Unite	Piece	Head type	Hex Head
Packing	Bulk cartons with pallet, small boxes in cartons with pallet	Lead time	Busy season:20-30days,Slack season:10-20days

Product Application

DIN7990 Hex Bolts For Steel Structures is widely used in heavy Industry, mining, water treatment, healthcare, construction, general industry, Oil & Gas, automotive industry etc.

Product Details