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Hex Head bolts

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.

  • 304 SS Hex Bolt ASME B18.2.1

    304 SS Hex Bolt ASME B18.2.1DetailDimension Table

    Known for its excellent corrosion resistance and mechanical properties, AYA Fasteners 304 stainless steel is suitable for a wide range of applications. The hex head design ensures easy installation and removal, while the polished finish adds a sleek and professional appearance.

    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
  • 18-8 Stainless Steel Hex Bolts ASME B18.2.1

    18-8 Stainless Steel Hex Bolts ASME B18.2.1DetailDimension Table

    Provides excellent corrosion resistance, strength, and durability, making these stainless steel bolts suitable for a wide range of applications. The hex head design ensures easy installation and removal, while the polished finish adds an aesthetic appeal, making them ideal for both functional and decorative purposes.

    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
  • Stainless Steel Heavy Hex Bolts DIN 6914

    Stainless Steel Heavy Hex Bolts DIN 6914DetailDimension Table

    AYA Fasteners’ Stainless Steel Heavy Hex Bolts are designed for heavy-duty applications that demand high strength and reliability. Featuring a larger hex head and thicker shank, these bolts provide increased load-bearing capacity and resistance to shear forces. Made from high-quality stainless steel, they offer excellent corrosion resistance, making them suitable for use in harsh environments.

    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
  • A2-70 Stainless Steel Hex Head Bolts DIN 601

    A2-70 Stainless Steel Hex Head Bolts DIN 601DetailDimension Table

    AYA Fasteners’ A2-70 Stainless Steel Hex Head Bolts are high-performance fasteners designed for a wide range of industrial applications. Made from A2-70 grade stainless steel, these bolts provide high strength and corrosion resistance for industrial applications. The A2-70 designation indicates a minimum tensile strength of 700 MPa, making these bolts suitable for medium to high-stress applications.

    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
  • 316 Stainless Steel Hex Head Bolts DIN 931

    316 Stainless Steel Hex Head Bolts DIN 931DetailDimension Table

    AYA Fasteners’ 316 stainless steel hex bolts are engineered for extreme environments, offering exceptional corrosion resistance and durability. Made from 316 stainless steel, these bolts are well-known for their exceptional corrosion resistance, particularly against chlorides and acidic substances. This makes them an ideal choice for industries where exposure to harsh chemicals, saltwater, or extreme weather conditions is common. The hex head design ensures easy installation and removal, providing a secure and reliable connection for critical applications.

    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
  • Stainless Steel Hex Bolts

    Stainless Steel Hex 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.

    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
  • Stainless Steel Hex Head Bolts

    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 Bolts

    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