Heavy hex bolts are heavy profile hexagon bolts with large width across flats and high head height. Also known as heavy hex head bolts or heavy hex structural bolts, these heavy hex bolts are commonly manufactured in high tensile grade 5, 8, 8.8, 10.9, 12.9, a193 grade b7, b7m, b8, b8m, b16, a320 grade l7, l7m, stainless steel and other material. We also offer heavy hex bolts to structural grade ASTM a307, a325 and a490 specifications. These heavy hex bolts are produced to dimensions classified under ASME B18.2.1, B18.2.3.7M, DIN 6914, ISO 7412, DIN-EN 14399-4 and various other dimension standards.
Find complete information about inch and metric heavy hex bolt dimensions, standard, material, size chart, torque chart, thread data and weight chart. Heavy hex bolts are widely used for high strength structural applications.
ASME B18.2.1 | 3/8 inch to 3 inch |
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BS 1769 | ½ inch to 2 inch |
ASME B18.2.3.6M | M12 to M36 |
ASME B18.2.3.7M | M16 to M36 |
DIN 6914 | M12 to M36 |
ISO 7412 | M12 to M36 |
UNI 5712 | M12 to M36 |
DIN-EN 14399-4 | M12 to M36 |
SAE J429 | Grade 5 | Grade 8 | |||
ISO 898-1 | Grade 8.8 | Grade 10.9 | Grade 12.9 | ||
ASTM A193 | Grade B7 | Grade B7M | Grade B8 | Grade B8M | Grade B16 |
ASTM A307 | Grade A | Grade B | |||
ASTM A320 | Grade L7 | Grade L7M | Grade B8 | Grade B8M | |
ASTM A325 | Type 1 | Type 3 | |||
ASTM A354 | Grade BC | Grade BD | |||
ASTM A490 | Type 1 | Type 3 |