HIGH HEAD HEX CAP SCREW
10.9 Grade / 1040 MPa / 151Ksi / Rc- C hardness 33-39.
Thread Size HEAD HEIGHT Regular GR8 Bolts
3/8” 7.37MM 6.00mm
7/16” 8.59MM
1/2" 9.80MM
9/16” 11MM
5/8” 12.22MM
3/4" 14.66 MM
7/8” 17.07MM
1” 17.93 MM
Hex Cap Screws,Grade 8
· Typical Material:Medium Carbon Alloy Steel
· Material and Mechanical Properties:1/4 to 1-1/2 are purchased to meet SAE J429 Grade 8.
· Diameters over 1-1/2 are purchased to meet ASTM A354 Grade BD.
· Dimensions:ASME B18.2.1
· Typical Hardness:HRC 33-39 on sizes 1/4 to 2-1/2 inches;HRC 31-39 on sizes over 2-1/2 inches.
· Tensile Strength:150,000 PSI Minimum on sizes 1/4 to 2-1/2 inches;140,000 PSI Minimum on sizes over 2-1/2 inches.
Metric Hex Bolts DIN931 Class 10.9 & 12.9 20% High thickness head.
