Product Description：
Name: Countersunk Hex Socket
Material: Grade 10.9 Alloy Steel
Standard: UNC / UNF
Size: Thread Diameter – Threads Per Inch x Total Length
e.g..: 4#-40x3/16 (Thread Diameter 4#, Threads Per Inch 40, Total Length 3/16")
Thread Diameter:4#,4#,6#,8#,10#
Threads Per Inch(TPI): 32,40
Total Length: 3/16",1/4",5/16",3/8",1/2",5/8",3/4",1",1-1/4",1-1/2"
The product is manufactured from Grade 10.9 alloy steel, which offers high toughness, excellent cold and hot working properties, and superior machinability.
Wide range of applications:
Grade 10.9 bolts, commonly known as high-strength bolts, are suitable for connecting beams and columns in steel frame structures, connecting solid web beams, connecting heavy crane beams in industrial buildings, as well as for brake systems and critical structural connections subject to dynamic loads.
Customer service online time：
Our working hours are from 8:30 am to 17:30 pm Beijing time Monday to Saturday，(excluding Chinese holidays and special circumstances).
If the customer service does not reply to the message in time, please be patient, we will reply you immediately when we see the message.
Issue Resolution：
If you encounter any problems with your order, we are here to help. Please reach out to us, and we will do our best to address and resolve any issues in a timely manner.
