The ASTM A563 specification provides the chemical and mechanical specifications of carbon and alloy steel nuts that are used in conjunction with the bolts, studs, and other externally threaded fasteners. The standard gives specifications on over-tapping allowance of the hot-dip galvanized nuts, marking to grade, and mechanical specifications and further details are given through a Nut Compatibility Chart.
One of the major provisions in the A563 specification is that the suppliers may replace a stronger grade of nut than is indicated, as long as the purchaser is notified and the replacement is not expressly prohibited by the order. This is necessary due to the flexibility of the fact that not every grade of nut will be immediately available in every size and finish. Besides, the specification also allows using ASTM A194 Grade 2H nuts in place of A563 Grade DH nuts with nominal sizes higher than 3/4 inch to overcome Grade DH availability challenges.
In the case of nuts that are held in a hot-dip galvanizing process, the nuts have to be oversized to fit the thickness of the zinc coating on the outer threads of the mating fastener. ASTM specification also includes different designs of nuts such as hex, heavy hex, square, jam, coupling, and sleeve and the type of nut required is usually determined by the grade of the nut.
ASTM A563 Carbon Steel Nuts, ASTM A563 Carbon Steel Heavy Hex Nuts, ASTM A563 Alloy Steel Nuts Supplier and Exporter in India
Jade Special Metals is one of the leading manufacturers, suppliers, and exporters of ASTM A563 Nuts of high quality. This standard encompasses an enormous number of products as the major specification of carbon and alloy steel nuts and has an enormous number of applications in structural, industrial, and general-purpose purposes. We have the whole range of ASTM nuts and A563 nuts with the most popular types such as A, C, and DH so that we can offer certified quality, competitive price, and timely delivery of any project. ASTM A563 Fasteners are used in nuts, although they are supplied as a complete, reliable assembly of bolts.
ASTM A563 Grades
| O |  |
Carbon steel, hex or heavy hex |
| A |  |
Carbon steel, hex or heavy hex |
| B |  |
Carbon steel, hex or heavy hex |
| C |  |
Carbon steel, hex or heavy hex |
| D |  |
Carbon steel, hex or heavy hex |
| DH |  |
Carbon steel, hex or heavy hex |
| C3 |  |
Carbon steel, hex or heavy hex |
| DH3 |  |
Carbon steel, hex or heavy hex |
Table of Contents
- Types of ASTM A563 Fasteners
- ASTM A563 Nut Specification
- Chemical Composition ASTM A563 Nut
- A563 Mechanical Properties
- Equivalent material grade of ASTM A563
- Dimensions Standard of ASTM A563 Hex Nuts
- Dimension chart of ASTM A563 Heavy Hex Nuts
- Size Chart of ASTM A563 Bolt
- ASTM A563 Nuts Inventory
- Applications of ASTM A563 Nuts
Types of ASTM A563 Fasteners
ASTM A563 Heavy Hex Nuts
ASTM A563 Hex Nuts
ASTM A563 Jam Nuts
ASTM A563 Square Nuts
ASTM A563 Coupling Nuts
ASTM A563 Cap Nuts
ASTM A563 Lock Nuts
ASTM A593 Wing Nuts
ASTM A563 Nut Specification
| Standards | Designation |
|---|---|
| ASTM | F563 |
| Astm F563 Nuts Delivery time | custom product will according to special requirement, Regular product is about 7-15 days |
| ASTM F563 Nuts Coatings | Cadmium, Black Oxide, Teflon, Galvanized, Zinc, Xylan, Otders Upon Request |
| Astm F563 Nuts Dimensions | ASME B18.3, B18.2.1 |
| Melt Origin | Soutd America/East Europe/Japan/Korea |
| Product Origin | Made in India |
| Astm F563 Nuts Threads Configuration | B1.13M 6h Metric Coarse Threads and ASME B1.1 2A/3A Inch Unified Threads |
| Astm F563 Nuts Certification | Dual Certified As per ASME & ASTM Codes |
| Additional Certifications | Merkblatt AD 2000 W2 Certified, PED 97/23/EC Certified |
| Mandatory Requirements | Free from Radioactive & Mercury Contamination |
| Additional Requirements | NACE MR0175 / MR0103 /ISO 15156 Compliance |
| Astm F563 Nuts Samples | Yes |
| Payment Terms | Western Union, T/T, Paypal, Trade Assurance 30% deposit & balance before shipping or L/C |
Chemical Composition ASTM A563 Nut
| Element | Grades O, A, B, C | D** | DH** |
|---|---|---|---|
| Carbon | 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% |
A563 Mechanical Properties
| Grade | Style | Size, in. | Proof Load, ksi | Hardness, HBN | |
|---|---|---|---|---|---|
| Plain | Galvanized | ||||
| A | Hex | 1/4 – 1-1/2 | 90 | 68 | 116 – 302 |
| Heavy Hex | 1/4 – 4 | 100 | 75 | 116 – 302 | |
| B | Heavy Hex | 1/4 – 1 | 133 | 100 | 121 – 302 |
| Heavy Hex | 1-1/8 – 1-1/2 | 116 | 87 | 121 – 302 | |
| C / C3 | Heavy Hex | 1/4 – 4 | 144 | 144 | 143 – 352 |
| D | Heavy Hex | 1/4 – 4 | 150 | 150 | 248 – 352 |
| DH / DH3 | Heavy Hex | 1/4 – 4 | 175 | 150 | 248 – 352 |
| For UNC, 8UN, 6UN, and Coarse Pitch Threads | |||||
Equivalent material grade of ASTM A563
| Alloy Group | Alloy Designation | Alloy Type |
|---|---|---|
| 1 | 303, 304, 304L, 305, 384, XM1, 18-9LW, 302HQ, 303Se | Austenitic |
| 2 | 316, 316L | Austenitic |
| 3 | 321, 347 | Austenitic |
| 4 | 430, 430F | Ferritic |
| 5 | 410, 416, 416Se | Martensitic |
| 6 | 431 | Martensitic |
| 7 | 630 (17-4) | Precipitation Hardening |
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Dimensions Standard of ASTM A563 Hex Nuts
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNEASTM A563 | ACROASTM A563 THE FLATS | ACROASTM A563 CORNERS | ||||
|---|---|---|---|---|---|---|---|---|
| D (MAX) | D (MIN) | H (MAX) | H (MIN) | F (MAX) | F (MIN) | C (MAX) | C (MIN) | |
| m10 | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
| m12 | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
| m14 | 14.00 | 13.73 | 9.09 | 8.51 | 22.00 | 20.67 | 24.25 | 23.35 |
| m16 | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
| m20 | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
| m24 | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
| m30 | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
| m36 | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
| m42 | 42.00 | 41.38 | 26.97 | 25.03 | 65.00 | 62.90 | 75.06 | 71.71 |
| m48 | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
| m56 | 56.00 | 55.26 | 36.2 | 33.80 | 85.00 | 82.20 | 98.15 | 93.71 |
| m64 | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
| m72 | 72.00 | 71.26 | 46.45 | 43.55 | 105.00 | 101.40 | 121.24 | 115.60 |
| m80 | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
| m90 | 90.00 | 89.13 | 57.74 | 54.26 | 130.00 | 125.50 | 150.11 | 143.07 |
| m100 | 90.00 | 99.13 | 63.9 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
Dimension chart of ASTM A563 Heavy Hex Nuts
| Diameter (D) | Body Diameter (D) | Across the Flats (F) | Across the Corners © | Head Height (H) | Thread Lengths (T) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | <6” | >6” | |
| 1/2 | 0.515 | 0.482 | 0.875 | 0.85 | 1.01 | 0.969 | 0.364 | 0.302 | 1.25 | 1.5 |
| 5/8 | 0.642 | 0.605 | 1.062 | 1.031 | 1.227 | 1.175 | 0.444 | 0.378 | 1.5 | 1.75 |
| 3/4 | 0.768 | 0.729 | 1.25 | 1.212 | 1.443 | 1.383 | 0.524 | 0.455 | 1.75 | 2 |
| 7/8 | 0.895 | 0.852 | 1.438 | 1.394 | 1.66 | 1.589 | 0.604 | 0.531 | 2 | 2.25 |
| 1 | 1.022 | 0.976 | 1.625 | 1.575 | 1.876 | 1.796 | 0.7 | 0.591 | 2.25 | 2.5 |
| 1 1/8 | 1.149 | 1.098 | 1.812 | 1.756 | 2.093 | 2.002 | 0.78 | 0.658 | 2.5 | 2.75 |
| 1 1/4 | 1.277 | 1.223 | 2 | 1.938 | 2.309 | 2.209 | 0.876 | 0.749 | 2.75 | 3 |
| 1 3/8 | 1.404 | 1.345 | 2.188 | 2.119 | 2.526 | 2.416 | 0.94 | 0.81 | 3 | 3.25 |
| 1 1/2 | 1.531 | 1.47 | 2.375 | 2.3 | 2.742 | 2.622 | 1.036 | 0.902 | 3.25 | 3.5 |
| 1 3/4 | 1.785 | 1.716 | 2.75 | 2.662 | 3.175 | 3.035 | 1.196 | 1.054 | 3.75 | 4 |
| 2 | 2.039 | 1.964 | 3.125 | 3.025 | 3.608 | 3.449 | 1.388 | 1.175 | 4.25 | 4.5 |
| 2 1/4 | 2.305 | 2.214 | 3.5 | 3.388 | 4.041 | 3.862 | 1.548 | 1.327 | 4.75 | 5 |
| 2 1/2 | 2.559 | 2.461 | 3.875 | 3.75 | 4.474 | 4.275 | 1.708 | 1.479 | 5.25 | 5.5 |
| 2 3/4 | 2.827 | 2.711 | 4.25 | 4.112 | 4.907 | 4.688 | 1.869 | 1.632 | 5.75 | 6 |
| 3 | 3.081 | 2.961 | 4.625 | 4.475 | 5.34 | 5.102 | 2.06 | 1.815 | 6.25 | 6.5 |
Size Chart of ASTM A563 Bolt
| Nominal Basic | Size or Screw | Body | D Diameter | Head | A Diameter | Head | H Height | $ Head Side Height | J Hex Socket Size | T Key Engagmt | G Wall Thkns | K Chamfer or Radius |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diameter | Max | Min | Max | Min | Max | Min | Max | Nominal | Min | Min | Max | |
| 0 | 0.0600 | 0.0600 | 0.0568 | 0.096 | 0.091 | 0.060 | 0.057 | 0.054 | 0.050 | 0.025 | 0.020 | 0.003 |
| 1 | 0.0730 | 0.0730 | 0.0695 | 0.118 | 0.112 | 0.073 | 0.070 | 0.066 | 1/16 0.062 | 0.031 | 0.025 | 0.003 |
| 2 | 0.0860 | 0.0860 | 0.0822 | 0.140 | 0.134 | 0.086 | 0.083 | 0.077 | 5/64 0.078 | 0.038 | 0.029 | 0.003 |
| 3 | 0.0990 | 0.0990 | 0.0949 | 0.161 | 0.154 | 0.099 | 0.095 | 0.089 | 5/64 0.078 | 0.044 | 0.034 | 0.003 |
| 4 | 0.1120 | 0.1120 | 0.1075 | 0.183 | 0.176 | 0.112 | 0.108 | 0.101 | 3/32 0.094 | 0.051 | 0.038 | 0.005 |
| 5 | 0.1250 | 0.1250 | 0.1202 | 0.205 | 0.198 | 0.125 | 0.121 | 0.112 | 3/32 0.094 | 0.057 | 0.043 | 0.005 |
| 6 | 0.1380 | 0.1380 | 0.1329 | 0.226 | 0.218 | 0.138 | 0.134 | 0.124 | 7/64 0.109 | 0.064 | 0.047 | 0.005 |
| 8 | 0.1640 | 0.1640 | 0.1585 | 0.270 | 0.262 | 0.164 | 0.159 | 0.148 | 9/64 0.141 | 0.077 | 0.056 | 0.005 |
| 10 | 0.1900 | 0.1900 | 0.1840 | 0.312 | 0.303 | 0.190 | 0.185 | 0.171 | 5/32 0.156 | 0.090 | 0.065 | 0.005 |
| 1/4 | 0.2500 | 0.2500 | 0.2435 | 0.375 | 0.365 | 0.250 | 0.244 | 0.225 | 3/16 0.188 | 0.120 | 0.095 | 0.008 |
| 5/16 | 0.3125 | 0.3125 | 0.3053 | 0.469 | 0.457 | 0.312 | 0.306 | 0.281 | 1/4 0.250 | 0.151 | 0.119 | 0.008 |
| 3/8 | 0.3750 | 0.3750 | 0.3678 | 0.562 | 0.550 | 0.375 | 0.368 | 0.337 | 5/16 0.312 | 0.182 | 0.143 | 0.008 |
| 7/16 | 0.4375 | 0.4375 | 0.4294 | 0.656 | 0.642 | 0.438 | 0.430 | 0.394 | 3/8 0.375 | 0.213 | 0.166 | 0.010 |
| 1/2 | 0.5000 | 0.5000 | 0.4919 | 0.750 | 0.735 | 0.500 | 0.492 | 0.450 | 3/8 0.375 | 0.245 | 0.190 | 0.010 |
| 5/8 | 0.6250 | 0.6250 | 0.6163 | 0.938 | 0.921 | 0.625 | 0.616 | 0.562 | 1/2 0.500 | 0.307 | 0.238 | 0.010 |
| 3/4 | 0.7500 | 0.7500 | 0.7406 | 1.125 | 1.107 | 0.750 | 0.740 | 0.675 | 5/8 0.625 | 0.370 | 0.285 | 0.010 |
| 7/8 | 0.8750 | 0.8750 | 0.8647 | 1.312 | 1.293 | 0.875 | 0.864 | 0.787 | 3/4 0.750 | 0.432 | 0.333 | 0.015 |
| 1 | 1.0000 | 1.0000 | 0.9886 | 1.500 | 1.479 | 1.000 | 0.988 | 0.900 | 3/4 0.750 | 0.495 | 0.380 | 0.015 |
| See Notes | 1 | 2,15 | 3 | 4 | 21 | 6 |
Applications of ASTM A563 Nuts
- Specialty Chemicals
- Pharmaceutical Equipment
- Pharmaceuticals
- Spiral Welded tube for burner pipes and flues
- Aircraft Exhaust Manifolds
- Petrochemicals
- Sea Water Equipment
- Gas Processing
- Off-Shore Oil Drilling Companies
- Power Generation
- Heat Exchangers
Related Products
ASTM A563 Nuts Price List
| Product Description | Price Range (USD) | Unit |
|---|---|---|
| ASTM A563 Grade C Hex Heavy Nut | $900.00 – $1,400.00 | Per Ton |
| Hot Dip Galvanized ASTM A563 Grade C Heavy Hex Nut | $0.05 – $2.00 | Per Piece |
| ASTM A563 Carbon Steel Hex Socket Nut with Groove | $0.971 – $1.44 | Per Kilogram |
| Alloy Steel Black Heavy ASTM A563 Hex Nut | $0.02 – $3.00 | Per Piece |
| Grade DH A563 Heavy Hex Teflon Nut | $0.01 – $0.50 | Per Piece (Min. order: 1 piece) |
| Black ASTM A563 Gr DH Heavy Hex Nut M64 | $0.08 – $1.00 | Per Piece |
| ASTM A563 Grade C3 Heavy Hex Nut | $0.005 – $2.00 | Per Piece |
| ASTM A563 Fasteners | $0.02 – $3.00 | Per Piece |
| ASTM A563 Grade DH Heavy Hex Nut | $0.39 | Per Piece |
Frequently Asked Questions About ASTM A563 Nuts
What is the ASTM A563 nut?
ASTM A563 specification gives the specifications of carbon and alloy steel nuts to be used as general structural and mechanical applications. These nuts are compatible with bolts, studs and other externally threaded components and can be used in a broad range of applications than A194 nuts.
What is the ASTM A563 nut equivalent?
ASTM A194 Grade 2H nut is specifically allowed to be replaced with an A563 Grade DH nut. Grade DH itself is acceptable in this substitution, which is sometimes because of the scarcity of Grade DH of particular sizes.
What is the torque on ASTM A563?
Certain values of torque are determined by the bolt/nut assembly and diameter, though in the case of A563 material, typical minimum tensile strength is approximately 34.200 lbf, and a recommended value of torque of 210 ft lb is frequently quoted as a typical assembly size.
What is the hardness of ASTM A563?
According to ASTM A563 Grade A, the tensile strength of the nuts in flat form should not fall short of 90 ksi. In the case of galvanized steel nuts, the maximum proof load should be 68 ksi. Hardness of this grade is in most cases 116 to 302 HBN which is sufficient to maintain its durability and reliability in its structural use.
What is the difference between Grade A and Grade C A563?
Grade A nuts include normal carbon steel that can be applied in the broad engineering applications. Grade C nuts are manufactured using quenched and tempered carbon steel, which is designed to achieve much higher strength need than Grade A.
