Boltport Fasteners is a manufacturer of ASTM A194 Grade 2H nuts as standard hex or heavy hex. We offer imperial, metric sized hex nuts and heavy hex nuts. Grade 2H nuts can be supplied with plain black phosphate, plain zinc, cadmium or hot dip galvanizing. Metric hex nuts are produced as per DIN 934, ASME B18.2.4.1M and B18.2.4.2M and imperial hex nuts are produced to ASME B18.2.2 Table 4, IS-1363-3 and IS 1364-3 standards. Imperial sized heavy hex nuts are produced to ASME B18.2.2 Table 10 whereas Metric heavy hex nuts are produced as per ASME B18.2.4.6M standard. Grade 2H nuts are available from M6 to M180 in metric and from 1/4 to 7 inches, in imperial. Boltport uses EN8, EN8D or AISI 1045 carbon Steel as a starting raw material for manufacturing A194 Grade 2H nuts.
Find information on ASTM A194 Grade 2H specification, chemical composition, hardness, proof load requirement, dimensional standards and surface coatings. For a quick quote on A194 Grade 2H Nuts, please contact our sales team at estimation@ferrobend.com
| Metric Sizes | M6 to M180 |
| Inch Sizes | 1/4" to 8" |
| Metric Standards | DIN, ISO, ASME, UNI |
| Imperial Standards | ASME, BS |
| Thread Standards | ISO 68-1, ISO 268, ISO 724, ASME B1.1, ASME B1.13M, BS 84, BS 3643 |
| Elements | Range |
|---|---|
| Carbon, min | 0.40 % |
| Manganese, max | 1.00 % |
| Phosphorus, max | 0.040 % |
| Sulfur, max | 0.040 % |
| Silicon, max | 0.40 % |
| Diameter mm | Brinell Hardness | Rockwell C (HRC) | Rockwell B (HRB) |
|---|---|---|---|
| 1-1/2 in. or M36, incl | 248 to 327 | 24 to 35 | ... |
| over 1-1/2 in. or M36 | 212 to 327 | 35 max | 95 min |
| Nominal Size, Inch | Threads per Inch | Stress Area Inch² | Heavy Hex Nuts (lbf) | Hex Nuts (lbf) |
|---|---|---|---|---|
| 1/4 | 20 | 0.0316 | 5 570 | 4 470 |
| 5/16 | 18 | 0.0524 | 9 170 | 7 860 |
| 3/8 | 16 | 0.0774 | 13 560 | 11 620 |
| 7/16 | 14 | 0.1063 | 18 600 | 15 940 |
| 1/2 | 13 | 0.1419 | 24 830 | 21 280 |
| 9/16 | 12 | 0.182 | 31 850 | 27 300 |
| 5/8 | 11 | 0.226 | 39 550 | 33 900 |
| 3/4 | 10 | 0.334 | 58 450 | 50 100 |
| 7/8 | 9 | 0.462 | 80 850 | 69 300 |
| 1 | 8 | 0.606 | 106 000 | 90 900 |
| 1 1/8 | 8 | 0.790 | 138 200 | 118 500 |
| 1 1/4 | 8 | 1.000 | 175 000 | 150 000 |
| 1 3/8 | 8 | 1.233 | 215 800 | 185 000 |
| 1 1/2 | 8 | 1.492 | 261 100 | 223 800 |
| Nominal Size, mm | Threads Pitch | Stress Area mm² | Heavy Hex Nuts (kN) | Hex Nuts (kN) |
|---|---|---|---|---|
| M6 | 1.0 | 20.1 | 29.2 | 20.8 |
| M8 | 1.25 | 36.6 | 44.1 | 37.9 |
| M10 | 1.5 | 58.0 | 69.9 | 60.0 |
| M12 | 1.75 | 84.3 | 101.6 | 87.3 |
| M14 | 2.0 | 84.3 | 138.6 | 119.0 |
| M16 | 2.0 | 115.0 | 189.2 | 162.5 |
| M20 | 2.5 | 245.0 | 295.2 | 253.6 |
| M22 | 2.5 | 303.0 | 365.1 | 313.6 |
| M24 | 3.0 | 353.0 | 425.4 | 365.4 |
| M27 | 3.0 | 459.0 | 553.4 | 475.1 |
| M30 | 3.5 | 561.0 | 676.0 | 580.6 |
| M36 | 4.0 | 817.0 | 984.5 | 845.6 |
| Type | DIN | ISO | ASME | UNI | |
|---|---|---|---|---|---|
| Imperial | Metric | ||||
| Hex Nut | 934 | 4032 | ASME B18.2.2 Table 4 | B18.2.4.1M | 5588 |
| Heavy Hex Nut | 6915 | 4775 | ASME B18.2.2 Table 10 | ASME B18.2.4.6M | |
| Hex Jam Nut | 439 | 4035 | ASME B18.2.2 | ASME B18.2.4.5M | UNI 5589 |