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Allen Key Bolt

High Tensile Bolt
High Tensile Hex Bolt also known as structural bolts is used in applications which are having high stress on the fasteners. The mail  differenceof  high strength bolt from the mild steel grade is the form of strees  not the strength of the material used.  There raw materials can be EN8D wire or boron wire  that have higher tensile strength to produce these bolts and are usually usually stocked in plain finish,hot dip galvanized  or zinc plated. High strength bolts are generally grade 8.8 and grade 10.9, most of which are grade 8.8. The design strength of high-strength bolt in tension and shear is lower in comparison to that of ordinary bolt. The strength of high-strength bolt is due to its large rigidity, high safety performance and strong anti-damage ability not due to its design value of bearing capacity.
 
Size: Dia M8 to 40 mm; Inch 3/8" to 7.1/2"
Grades: Grade 10.9, Grade 8.8, Grade 12.9  DIN 933 ,DIN 931
Standard: IS 1364 / IS 1363 & DIN EN ISO 4014 

Product
Allen Key Bolt