ASTM A563 specification covers the requirement for carbon and alloy steel nuts. ASTM A563 Grade A Nut has carbon in it the more carbon it is added, harder and stronger it gets when heat treated. But A563 Nut also becomes less ductile, which means it loses strength when deformed and isn’t as malleable. With or without heat treatment, a higher carbon content in A563 Dh Nut makes the metal less weldable, and the more carbon there is, the lower the melting point. ASTM A563 Grade A Square Nut are designed to go with square head bolts, they have generally been replaced by the cheaper hexagon nut or the square pressed nut. It is used in conjunction with square bolts or is commonly used with pole line hardware.
ASTM A563 Grade B Heavy Hex Nut is thicker and heavier in weight. Its part has a larger diameter across the flats. It also needs larger wrenches and sockets when being installed. The load strength is higher as compared to standard hex nut and it can bear more weight very easily. ASTM A563 Grade C Lock Nut is a nut that will resist loosening under vibration and torque. There are many types of lock nut but they can be widely divided into those which use friction to stop loosening and those that have some form of positive locking device. ASTM A563 Grade DH Cap Nut serves to protect the bolt threads underneath, but also provides a cleaner appearance, and may improve safety on certain joints and applications. When the application needs a smooth finish, or all rough-edged fasteners and exposed threads must be covered than cap nuts offers an excellent solution for this kind of situation. A563 Hex Nut is a six sided general purpose fasteners with internal screw threads. It is one of the most common nuts available and it is used with anchors, bolts, screws, studs, threaded rods and on any other fastener that has machine screw threads.
ASTM A563 Grade A Nut
ASTM A563 Grade B Heavy Hex Nut
ASTM A563 Nut
A563 steel Nut Size Metric |
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Height of ASTM A563 Grade A Nuts |
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ASTM A563 Hex Nut Size Inch |
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Direction of Thread | Right hand |
ASTM A563 Grade A Nuts Sizes |
Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric ASTM A563 Nut |
ASTM A563 Nut Length | 3 mm to 200 mm |
Material Origin | ASTM A563 Nut are Western European. Eastern origin possible on request. |
Other ASTM A563 Nut manufacturers | Omni, APL, Kundan, Deepak Fasteners, Unbrako, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc. |
ASTM A563 Grade B Nuts types | Eye Nuts, Nuts, Insert Nuts, Cap Nut, Coupler Nuts, Custom Nuts High Crown Acorn Nuts, T Nuts, Dome Nuts, K Lock Nut, Flange Nuts, Heavy Hex Nuts, Self Locking Nuts, Flex Lock Nut, Captive Nuts, Dome Head Nuts, High Tensile Heavy Hex Nuts, Wing Nut, Wheel Nuts, Jam Nut, Rivet Nuts, Lock Nut, Cage Nuts, Dowel Nuts, 2 Way Lock Nut, Square Nut, Hex Weld Nuts, Flange Lock Nut, U Nuts, Half Nuts, Hex Nuts, Hex Rivet Nuts, Nylon Insert Nut, Slotted Nut, Weld Nuts, Lug Nuts, Castle Nut |
Why Jignesh Steel? |
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MOQ | 5 pieces |
Preferred ASTM A563 Grade A Nut Drawing Formats | JPEG, PDF, CAD, STP, IGS |
Payment Terms | T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping |
Ask for Test Certificates from ASTM A563 Nut manufacturers |
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Free Samples | Yes |
Port of Dispatch | Mumbai or Kalamboli ports in Maharashtra state of India |
Delivery time | Regular product is about 7-15 days |
Surface Finish & Coating of ASTM A563 Nuts |
All A563 steel Nuts surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE. |
SA 563 gr a Nuts Application and Uses | Industrial, Wind tower, Railway, Nuclear power, Construction, Electronic, and Automotive industry |
Standard | Manufacturer of ASTM A563 Nut as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards
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ISO - International Organization for Standardization |
ASTM A563 Grade B Heavy Hex Nut Dimensions in mm
ISO ASTM A563 Grade A Hex Nut NB | Across Corners | MAX Thickness | MIN Thickness | MAX Across Flats | MIN Across Flats |
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M 8 | 14.38 | 6.8 | 6.44 | 13 | 12.73 |
M 10 | 17.77 | 8.4 | 8.04 | 16 | 15.73 |
M 12 | 20.03 | 10.8 | 10.37 | 18 | 17.73 |
M 14 | 23.35 | 12.8 | 12.1 | 21 | 20.67 |
M 16 | 26.75 | 14.8 | 14.1 | 24 | 23.67 |
M 18 | 29.56 | 15.8 | 15.1 | 27 | 26.16 |
M 20 | 32.95 | 18 | 16.9 | 30 | 29.16 |
M 22 | 37.29 | 19.4 | 18.1 | 34 | 33 |
M 24 | 39.55 | 21.5 | 20.2 | 36 | 35 |
M 27 | 45.2 | 23.8 | 22.5 | 41 | 40 |
M 30 | 50.85 | 26.6 | 24.3 | 46 | 45 |
M 33 | 55.37 | 28.7 | 27.4 | 50 | 49 |
M 36 | 60.79 | 31 | 29.4 | 55 | 53.8 |
M 39 | 66.44 | 33.4 | 31.8 | 60 | 58.8 |
M 42 | 71.3 | 34 | 32.4 | 65 | 63.1 |
M 45 | 76.95 | 36 | 34.4 | 70 | 68.1 |
M 48 | 82.6 | 38 | 39.4 | 75 | 73.1 |
M 52 | 88.25 | 42 | 40.4 | 80 | 78.1 |
M 56 | 93.56 | 45 | 43.4 | 85 | 82.8 |
M 60 | 99.21 | 48 | 46.4 | 90 | 87.8 |
M 64 | 104.86 | 51 | 49.1 | 95 | 92.8 |
M 68 | 110.51 | 54 | 52.1 | 100 | 97.8 |
M 72 x 6 | 116.16 | 58 | 56.1 | 105 | 102.8 |
M 76 x 6 | 121.81 | 61 | 59.1 | 110 | 107.8 |
M 80 x 6 | 127.46 | 64 | 62.1 | 115 | 112.8 |
A563 steel Hex Nut
ASTM A563 Grade B Weld Nut
SA 563 gr a Pinion Nut
ASTM A563 Grade A Heavy Hex Nut
SA563 gr B Slotted Flange Nut
ASTM A563 Grade DH M10 Hexagon Nut
ASTM A563 Grade A Lock Nut
Fine Thread ASTM A563 grade a steel Hex Nut
Nominal Nut Size in Inch and Pitch | Oversizing Allowances, in. | Pitch Dia. | |
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Min | Max | ||
0.250 - 20 | 0.016 | 0.2335 | 0.2384 |
0.312 - 18 | 0.017 | 0.2934 | 0.2987 |
0.375 - 16 | 0.017 | 0.3514 | 0.3571 |
0.437 - 14 | 0.018 | 0.4091 | 0.4152 |
0.500 - 13 | 0.018 | 0.4680 | 0.4745 |
0.562 - 12 | 0.020 | 0.5284 | 0.5352 |
0.625 - 11 | 0.020 | 0.5860 | 0.5932 |
0.750 - 10 | 0.020 | 0.7050 | 0.7127 |
0.875 - 9 | 0.022 | 0.8248 | 0.8330 |
1.000 - 8 | 0.024 | 0.9428 | 0.9516 |
1.125 - 8 | 0.024 | 1.0678 | 1.0768 |
1.125 - 7 | 0.024 | 1.0562 | 1.0656 |
1.250 - 8 | 0.024 | 1.1928 | 1.2020 |
1.250 - 7 | 0.024 | 1.1812 | 1.1908 |
1.375 - 8 | 0.027 | 1.3208 | 1.3301 |
1.375 - 6 | 0.027 | 1.2937 | 1.3041 |
1.500 - 8 | 0.027 | 1.4458 | 1.4553 |
1.500 - 6 | 0.027 | 1.4187 | 1.4292 |
1.750 - 5 | 0.050 | 1.6701 | 1.6817 |
2.000 - 4.5 | 0.050 | 1.9057 | 1.9181 |
2.250 - 4.5 | 0.050 | 2.1557 | 2.1683 |
2.500 - 4 | 0.050 | 2.3876 | 2.4011 |
2.750 - 4 | 0.050 | 2.6376 | 2.6513 |
3.000 - 4 | 0.050 | 2.8876 | 2.9015 |
3.250 - 4 | 0.050 | 3.1376 | 3.1517 |
3.500 - 4 | 0.050 | 3.3876 | 3.4019 |
3.750 - 4 | 0.050 | 3.6376 | 3.6521 |
4.000 - 4 | 0.050 | 3.8876 | 3.9023 |
Hex Nuts Grade Identification Marking |
Hex Nuts Specification | Hex Nuts Material | Nominal Size ub Inches | Hex Nuts Proof Load Stress ksi |
Hardness Rockwell |
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Min | Max | |||||
![]() No Mark |
ASTM A563 Grade O | Carbon Steel | 1/4 thru 1-1/2 | 69 | B55 | C32 |
ASTM A563 Grade A | Carbon Steel | 1/4 thru 1-1/2 | 90 | B68 | C32 | |
ASTM A563 Grade B | Carbon Steel | 1/4 thru 1 | 120 | B69 | C32 | |
over 1 thru 1-1/2 | 105 | |||||
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ASTM A563 Grade C | Carbon Steel May be Quenched and Tampered |
1/4 thru 4 | 144 | B78 | C38 |
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ASTM A563 Grade C3 | Atmospheric Corrosion Resistant Steel May be Quenched and Tampered |
1/4 thru 4 | 144 | B78 | C38 |
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ASTM A563 Grade D | Carbon Steel May be Quenched and Tampered |
1/4 thru 4 | 150 | B84 | C38 |
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ASTM A563 Grade DH | Carbon Steel Quenched and Tampered |
1/4 thru 4 | 175 | C24 | C38 |
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ASTM A563 Grade DH3 | Atmospheric Corrosion Resistant Steel,Quenched and Tampered |
1/4 thru 4 | 175 | C24 | C38 |
ASTM | Group | Material |
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A563 | A | Carbon steel, hex nut or heavy hex |
A563 | B | Carbon steel, hex nut or heavy hex |
A563 | C | Carbon steel, quenched and tempered, heavy hex |
A563 | D | Carbon steel, quenched and tempered, heavy hex |
A563 | DH | Carbon steel, quenched and tempered, heavy hex |
A563 | C3 | Weathering steel, quenched and tempered, heavy hex |
A563 | DH3 | Weathering steel, quenched and tempered, heavy hex |
SA 563 gr a Finished Hex Nuts sizes as per ANSI/ASME B18.2.2
Nominal or Basic Major Diameter of Nut Thread |
ASTM A563 Grade A Nuts Width Across Flats (F) |
Width Across Corners (G) | Thickness of A563 steel Hex Nuts (H) | ||||||
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Basic | Max | Min | Max | Min | Basic | Max | Min | ||
1/4 | 0.2500 | 7/16 | .438 | .428 | .505 | .488 | 7/32 | 0.226 | 0.212 |
5/16 | 0.3125 | 1/2 | .500 | .489 | .577 | .557 | 17/64 | 0.273 | 0.258 |
3/8 | 0.3750 | 9/16 | .562 | .551 | .650 | .628 | 21/64 | 0.337 | 0.320 |
7/16 | 0.4375 | 11/16 | .688 | .675 | .794 | .768 | 3/8 | 0.385 | 0.365 |
1/2 | 0.5000 | 3/4 | .750 | .736 | .866 | .840 | 7/16 | 0.448 | 0.427 |
9/16 | 0.5625 | 7/8 | .875 | .861 | 1.010 | .982 | 31/64 | 0.496 | 0.473 |
5/8 | 0.6250 | 15/16 | .938 | .922 | 1.083 | 1.051 | 35/64 | 0.559 | 0.535 |
3/4 | 0.7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 41/64 | 0.665 | 0.617 |
7/8 | 0.8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 3/4 | 0.776 | 0.724 |
1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 55/64 | 0.887 | 0.831 |
1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 31/32 | 0.999 | 0.939 |
1-1/4 | 1.2500 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 1-1/16 | 1.094 | 1.030 |
1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 1-11/64 | 1.206 | 1.138 |
1-1/2 | 1.5000 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 1-9/32 | 1.317 | 1.245 |
1-5/8 | 1.6250 | 2-7/16 | 2.438 | 2.356 | 2.815 | 2.686 | 1-25/64 | 1.429 | 1.353 |
1-3/4 | 1.7500 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 1-1/2 | 1.540 | 1.460 |
2 | 2.000 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-23/32 | 1.763 | 1.675 |
2-1/4 | 2.2500 | 3-3/8 | 3.375 | 3.263 | 3.897 | 3.719 | 1-15/16 | 1.986 | 1.890 |
2-1/2 | 2.5000 | 3-3/4 | 3.750 | 3.625 | 4.330 | 4.133 | 2-5/32 | 2.209 | 2.105 |
2-3/4 | 2.7500 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.456 | 2-3/8 | 2.431 | 2.319 |
3 | 3.000 | 4-1/2 | 4.500 | 4.350 | 5.196 | 4.959 | 2-19/32 | 2.654 | 2.534 |
Element | ASTM A563 O, A, B, Grade C | D | DH |
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Carbon (C) | 0.55% max | 0.55% max | 0.20 - 0.55% |
Manganese, min | 0.30% | 0.60% | |
Phosphorus, max | 0.12% | 0.04% | 0.04% |
Sulfur, max | 0.15%* | 0.05% | 0.05% |
Element | ASTM A563 Grade C3 | DH3 | ||||||
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A | B | C | D | E | F | N | ||
Carbon (C) | 0.33 - 0.40% | 0.38 - 0.48% | 0.15 - 0.25% | 0.15 - 0.25% | 0.20 - 0.25% | 0.20 - 0.25% | 0.20 - 0.53% | |
Manganese | 0.90 - 1.20% | 0.70 - 0.90% | 0.80 - 1.35% | 0.40 - 1.20% | 0.60 - 1.00% | 0.90 - 1.20% | 0.40% min | |
Phosphorus | 0.040% max | 0.06 - 0.12% | 0.035% max | 0.040% max | 0.040% max | 0.040% max | 0.07 - 0.15% | 0.046% max |
Sulfur, max | 0.050% | 0.050% | 0.040% | 0.050% | 0.040% | 0.040% | 0.050% | 0.050% |
Silicon | 0.15 - 0.35% | 0.30 - 0.50% | 0.15 - 0.35% | 0.25 - 0.50% | 0.15 - 0.35% | 0.15 - 0.35% | 0.20 - 0.90% | |
Copper | 0.25 - 0.45% | 0.20 - 0.40% | 0.20 - 0.50% | 0.30 - 0.50% | 0.30 - 0.60% | 0.20 - 0.40% | 0.25 - 0.55% | 0.20% min |
Nickel (Ni) | 0.25 - 0.45% | 0.50 - 0.80% | 0.25 - 0.50% | 0.50 - 0.80% | 0.30 - 0.60% | 0.20 - 0.40% | 1.00% max | 0.20% min |
Chromium | 0.45 - 0.65% | 0.50 - 0.75% | 0.30 - 0.50% | 0.50 - 1.00% | 0.60 - 0.90% | 0.45 - 0.65% | 0.30 - 1.25% | 0.45% min |
Vanadium | 0.020% min | |||||||
Molybdenum | 0.06% max | 0.10% max | 0.15% min | |||||
Titanium | 0.05% max |
Grade | Nut Type | Sizes in inch | Nut Proof Load, ksi | Hardness, HBN | |
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Plain | Galvanized | ||||
A563 A | Hex | 1/4 - 1-1/2 | 90 | 68 | 116 - 302 |
Heavy Hex | 1/4 - 4 | 100 | 75 | 116 - 302 | |
A563 B | Heavy Hex | 1/4 - 1 | 133 | 100 | 121 - 302 |
Heavy Hex | 1-1/8 - 1-1/2 | 116 | 87 | 121 - 302 | |
A563 C / C3 | Heavy Hex | 1/4 - 4 | 144 | 144 | 143 - 352 |
A563 D | Heavy Hex | 1/4 - 4 | 150 | 150 | 248 - 352 |
A563 DH / DH3 | Heavy Hex | 1/4 - 4 | 175 | 150 | 248 - 352 |
For UNC, 6UN, 8UN, and Coarse Pitch Threads |
Products | FOB Price US $ |
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M6 M8 M10 M12 M21 M25 M60 M64 ASTM A563 hex nuts | US $0.01/ Piece |
Galvanized DIN934 A563 Heavy Duty Hex Nut | US $0.01/ Piece |
ANSI B18.2.2 A563 Hex Hexagon Heavy Nut | US $0.015-$0.25/ Piece |
M6 ANSI 18.2.4.6M ASTM A563 Hex Heavy Nut | US $0.05-$0.50/ Piece |
Astm A563 Carbon Steel Plain Finished Heavy Hex Nut | US $0.01-$0.50/ Piece |
A563 Inch Xylan Heavy Hex Nuts | US $0.10/ Piece |
1/4"-4" ASTM A563 DH Heavy Hex Head Nut | US $0.01-$0.02/ Piece |
heavy hex nut ASTM A563 DIN6915 for structure with ISO | US $0.01-$0.03/ Piece |
ASTM a563 gr dh heavy hex nut & plain hex thin nut | US $0.03-$0.06/ Piece |
ANSI ASME B18.2.2 ASTM A563 Gr DH finish hex nuts carbon steel nut | US $0.75-$1.50/ Kilogram |
ASTM A563 grade dh heavy hex nut | US $0.10-$10.00/ Piece |
Galvanizing Grade 2H ASTM A563 Heavy Hex Nuts | US $0.05-$0.15/ Piece |
Call us or send us an email to sales@jigneshsteel.com for more details. Always compare our price with other ASTM A563 Nut manufacturers in India or China