Description	Heavy Hex Bolts Nuts Washers ASTM A307 ASTM A325 ASTM A490
Size	M16,M20,M22,M24,M27,M30
Length	50mm-250mm
Grade	10.9S, 8.8S
Standards	GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS etc
Material	20MnTiB,ML20MnTiB,35VB,35CrMo,etc
Surface	Black, or according to customers' requirement
Usage	Steel structures,multi-floor,high-rise steel structure, buildings,industrial buildings,high-way,railway,steel steam,tower,power station,and other structure workshop frames
Samples	Free.

OUR  ADVANTAGES:

1.Offer professional items to meet customer's demand 

2.High quality and strict quality control to our products .

3.Factory directly sale with favorable price.

4.Great variety of products and good after-sales service.

a Variety of Design.

6.Small Order Acceptable.

7.ODM Accepted  OEM Accepted.