Hex Head bolts
Hex bolts, also known as hexagon head bolts or hex cap screws, are a common type of fastener with a hexagonal head and external threaded shaft. Hex bolts are graded based on their material strength. Common materials include SS201, SS304, and SS316 for stainless steel bolts, each with specific mechanical properties.
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Stainless Steel Hex Head BoltsDetailDimension Table
Stainless steel hex head bolts are a type of fastener with a hexagonal head designed to be tightened or loosened using a wrench or socket. They are made from stainless steel, which offers corrosion resistance, making them suitable for various applications in different industries. Available in a variety of sizes, lengths, and thread pitches to suit different applications and specifications.
Screw Thread M1.6 M2 M2.5 M3 (M3.5) M4 M5 M6 (M7) M8 M10 M12 (M14) M16 d P Pitch 0.35 0.4 0.45 0.5 0.6 0.7 0.8 1 1 1.25 1.5 1.75 2 2 a max 1.05 1.2 1.35 1.5 1.8 2.1 2.4 3 3 3.75 4.5 5.25 6 6 c min 0.1 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.2 max 0.25 0.25 0.25 0.4 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.8 da max 2 2.6 3.1 3.6 4.1 4.7 5.7 6.8 7.8 9.2 11.2 13.7 15.7 17.7 dw Grade A min 2.4 3.2 4.1 4.6 5.1 5.9 6.9 8.9 9.6 11.6 15.6 17.4 20.5 22.5 Grade B min - - - - - 5.7 6.7 8.7 9.4 11.4 15.4 17.2 20.1 22 e Grade A min 3.41 4.32 5.45 6.01 6.58 7.66 8.79 11.05 12.12 14.38 18.9 21.1 24.49 26.75 Grade B min - - - - - 7.5 8.63 10.89 11.94 14.2 18.72 20.88 23.91 26.17 k Nominal Size 1.1 1.4 1.7 2 2.4 2.8 3.5 4 4.8 5.3 6.4 7.5 8.8 10 Grade A min 0.98 1.28 1.58 1.88 2.28 2.68 3.35 3.85 4.65 5.15 6.22 7.32 8.62 9.82 max 1.22 1.52 1.82 2.12 2.52 2.92 3.65 4.15 4.95 5.45 6.56 7.68 8.98 10.18 Grade B min - - - - - 2.6 3.26 3.76 4.56 5.06 6.11 7.21 8.51 9.71 max - - - - - 3 3.74 4.24 5.04 5.54 6.69 7.79 9.09 10.29 k1 min 0.7 0.9 1.1 1.3 1.6 1.9 2.28 2.63 3.19 3.54 4.28 5.05 5.96 6.8 r min 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.25 0.25 0.4 0.4 0.6 0.6 0.6 s max=nominal size 3.2 4 5 5.5 6 7 8 10 11 13 17 19 22 24 Grade A min 3.02 3.82 4.82 5.32 5.82 6.78 7.78 9.78 10.73 12.73 16.73 18.67 21.67 23.67 Grade B min - - - - - 6.64 7.64 9.64 10.57 12.57 16.57 18.48 21.16 23.16 -
ASME B18.2.1 Stainless Steel Hex BoltsDetailDimension Table
304 stainless steel is known for its excellent corrosion resistance, making it suitable for various environments, including mildly corrosive and chemical environments.
It resists rust and oxidation, which makes it a popular choice for applications where exposure to moisture and harsh conditions is a concern.Nominal Size or Basic Product Diameter Full-Size Body Diameter, E (See Paras. 3.4 and 3.5) Width Across Flats, F (See Para. 2.1.2) Width Across Corners, G Head Height, H Radius of Fillet, R Nominal Thread Length for Bolt Lengths, LT(See Para. 3.7) Max. Min. Basic Mаx. Min. Max. Min. Basic Max. Min. Max. Min. 6 in. and Shorter Over 6 in. 1/4 0.2500 0.260 0.237 7/16 0.438 0.425 0.505 0.484 11/64 0.188 0.150 0.03 0.01 0.750 1.000 5/16 0.3125 0.324 0.298 1/2 0.500 0.484 0.577 0.552 7/32 0.235 0.195 0.03 0.01 0.875 1.125 3/8 0.3750 0.388 0.360 9/16 0.562 0.544 0.650 0.620 1/4 0.268 0.226 0.03 0.01 1.000 1.250 7/16 0.4375 0.452 0.421 5/8 0.625 0.603 0.722 0.687 19/64 0.316 0.272 0.03 0.01 1.125 1.375 1/2 0.5000 0.515 0.482 3/4 0.750 0.725 0.866 0.826 11/32 0.364 0.302 0.03 0.01 1.250 1.500 5/8 0.6250 0.642 0.605 15/16 0.938 0.906 1.083 1.033 27/64 0.444 0.378 0.03 0.02 1.500 1.750 3/4 0.7500 0.768 0.729 1-1/8 1.125 1.088 1.299 1.240 1/2 0.524 0.455 0.06 0.02 1.750 2.000 7/8 0.8750 0.895 0.852 1-5/16 1.312 1.269 1.516 1.447 37/64 0.604 0.531 0.06 0.02 2.000 2.250 1 1.0000 1.022 0.976 1/1/2 1.500 1.450 1.732 1.653 43/64 0.700 0.591 0.06 0.03 2.250 2.500 1-1/8 1.1250 1.149 1.098 1-11/16 1.688 1.631 1.949 1.859 3/4 0.780 0.658 0.09 0.03 2.500 2.750 1-1/4 1.2500 1.277 1.223 1-7/8 1.875 1.812 2.165 2.066 27/32 0.876 0.749 0.09 0.03 2.750 3.000 1-3/8 1.3750 1.404 1.345 2-1/16 2.062 1.994 2.382 2.273 29/32 0.940 0.810 0.09 0.03 3.000 3.250 1-1/2 1.5000 1.531 1.470 2-1/4 2.250 2.175 2.598 2.480 1 1.036 0.902 0.09 0.03 3.250 3.500 1-5/8 1.6250 1.685 1.591 2-7/16 2.438 2.356 2.815 2.616 1-3/32 1.116 0.978 0.09 0.03 3.500 3.750 1-3/4 1.7500 1.785 1.716 2-5/8 2.625 2.538 3.031 2.893 1-5/32 1.196 1.054 0.12 0.04 3.750 4.000 1-7/8 1.8750 1.912 1.839 2-13/16 2.812 2.719 3.248 3.099 1-1/4 1.276 1.130 0.12 0.04 4.000 4.250 2 2.0000 2.039 1.964 3 3.000 2.900 3.464 3.306 1-11/32 1.388 1.175 0.12 0.04 4.250 4.500 2-1/4 2.2500 2.305 2.214 3-3/8 3.375 3.262 3.897 3.719 1-1/2 1.548 1.327 0.19 0.06 4.750 5.000 2-1/2 2.5000 2.559 2.461 3-3/4 3.750 3.625 4.330 4.133 1-21/32 1.708 1.479 0.19 0.06 5.250 5.500 2-3/4 2.7500 2.827 2.711 4-1/8 4.125 3.988 4.763 4.546 1-13/16 1.869 1.632 0.19 0.06 5.750 6.000 3 3.0000 3.081 2.961 4-1/2 4.500 4.350 5.196 4.959 2 2.060 1.815 0.19 0.06 6.250 6.500 3-1/4 3.2500 3.335 3.210 4-7/8 4.875 4.712 5.629 5.372 2-3/16 2.251 1.936 0.19 0.06 6.750 7.000 3-1/2 3.5000 3.589 3.461 5-1/4 5.250 5.075 6.062 5.786 2-5/16 2.380 2.057 0.19 0.06 7.250 7.500 3-3/4 3.7500 3.858 3.726 5-5/8 5.625 5.437 6.495 6.198 2-1/2 2.572 2.241 0.19 0.06 7.750 8.000 4 4.0000 4.111 3.975 6 6.000 5.800 6.928 6.612 2-11/16 2.764 2.424 0.19 0.06 8.250 8.500
