U-Bolt Hex Socket Cap Screw Stud bolt Hex Bolt Alloy 926 Nickel Alloy Fasteners
1.GB /T 70.1 - 2008 Hexagon Socket Head Cap Screws
Screw Thread d | (M14) | M16 | M20 | M24 | M30 | M36 | M42 | M48 | M56 | M64 | |
P | Pitch | b | dk | max | For plain head | For knurled heads | min | k | max | min | s | Nominal Size | max | min | t | min | | 2 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 40 | 44 | 52 | 60 | 72 | 84 | 96 | 108 | 124 | 140 | 21 | 24 | 30 | 36 | 45 | 54 | 63 | 72 | 84 | 96 | 21.33 | 24.33 | 30.33 | 36.39 | 45.39 | 54.46 | 63.46 | 72.46 | 84.54 | 96.54 | 20.67 | 23.67 | 29.67 | 35.61 | 44.61 | 53.54 | 62.54 | 71.54 | 83.46 | 95.46 | 14.00 | 16.00 | 20.00 | 24.00 | 30.00 | 36.00 | 42.00 | 48.00 | 56.00 | 64.00 | 13.57 | 15.57 | 19.48 | 23.48 | 29.48 | 35.38 | 41.38 | 47.38 | 55.26 | 63.26 | 12 | 14 | 17 | 19 | 22 | 27 | 32 | 36 | 41 | 46 | 12.212 | 14.212 | 17.23 | 19.275 | 22.275 | 27.275 | 32.33 | 36.33 | 41.33 | 46.33 | 12.032 | 14.032 | 17.05 | 19.065 | 22.065 | 27.065 | 32.08 | 36.08 | 41.08 | 46.08 | 7 | 8 | 10 | 12 | 15.5 | 19 | 24 | 28 | 34 | 38 | |
Weight of per 1000 steel products(≈kg) | | |
Screw Thread d | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | |
P | Pitch | b | dk | max | For plain head | For knurled heads | min | k | max | min | s | Nominal Size | max | min | t | min | | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 15 | 16 | 17 | 18 | 20 | 22 | 24 | 28 | 32 | 36 | 3 | 3.8 | 4.5 | 5.5 | 7 | 8.5 | 10 | 13 | 16 | 18 | 3.14 | 3.98 | 4.68 | 5.68 | 7.22 | 8.72 | 10.22 | 13.27 | 16.27 | 18.27 | 2.86 | 3.62 | 4.32 | 5.32 | 6.78 | 8.28 | 9.78 | 12.73 | 15.73 | 17.73 | 1.60 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 | 8.00 | 10.00 | 12.00 | 1.46 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.7 | 7.64 | 9.64 | 11.57 | 1.5 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 1.580 | 1.580 | 2.080 | 2.580 | 3.080 | 4.095 | 5.140 | 6.140 | 8.175 | 10.175 | 1.520 | 1.520 | 2.020 | 2.520 | 3.020 | 4.020 | 5.020 | 6.020 | 8.025 | 10.025 | 0.7 | 1 | 1.1 | 1.3 | 2 | 2.5 | 3 | 4 | 5 | 6 | |
Weight of per 1000 steel products(≈kg) | | |
2.JIS F 3022 - 1978 Steel Pipe U-Bolts for Ships

Screw Thread d | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | 700 | 750 | 800 | 850 | 900 | |
R | ds | d | H ① | Type A | Type B | Type C | b ② | Type A | Type B | Type C | B | t | L | P | s | d3 | | 137 | 163 | 181 | 207 | 233 | 259 | 284 | 310 | 335 | 361 | 387 | 413 | 439 | 464 | 20 | 24 | 24 | 24 | 30 | 30 | 30 | 36 | 36 | 36 | 36 | 42 | 42 | 42 | M20 | M24 | M24 | M24 | M30 | M30 | M30 | M36 | M36 | M36 | M36 | M42 | M42 | M42 | 300 | 357 | 394 | 444 | 505 | 556 | 606 | 663 | 713 | 764 | 818 | 875 | 926 | 977 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 60 | 70 | 70 | 70 | 85 | 85 | 85 | 100 | 100 | 100 | 100 | 115 | 115 | 115 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 75 | 90 | 90 | 90 | 100 | 100 | 100 | 130 | 130 | 130 | 130 | 130 | 150 | 150 | 9 | 10 | 10 | 10 | 13 | 13 | 13 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 372 | 448 | 484 | 536 | 622 | 675 | 725 | 805 | 855 | 910 | 960 | 1030 | 1085 | 1135 | 294 | 350 | 386 | 438 | 496 | 548 | 598 | 656 | 706 | 758 | 810 | 868 | 920 | 970 | 40 | 50 | 50 | 50 | 55 | 55 | 55 | 70 | 70 | 70 | 70 | 70 | 80 | 80 | 24 | 28 | 28 | 28 | 35 | 35 | 35 | 42 | 42 | 42 | 42 | 48 | 48 | 48 | |
Screw Thread d | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 90 | 100 | 125 | 150 | 175 | 200 | 225 | |
R | ds | d | H ① | Type A | Type B | Type C | b ② | Type A | Type B | Type C | B | t | L | P | s | d3 | | 12 | 15 | 18 | 23 | 26 | 32 | 40 | 46 | 52 | 59 | 72 | 85 | 98 | 111 | 124 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 16 | 16 | 16 | 16 | 20 | 20 | M10 | M10 | M10 | M10 | M10 | M10 | M12 | M12 | M12 | M16 | M16 | M16 | M16 | M20 | M20 | - | - | - | - | - | - | - | - | - | 141 | 167 | 192 | 218 | 249 | 274 | 39 | 45 | 52 | 60 | 66 | 78 | 98 | 110 | 123 | - | - | - | - | - | - | 47 | 53 | 60 | 68 | 74 | 86 | 108 | 120 | 133 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 50 | 50 | 50 | 50 | 60 | 60 | 20 | 20 | 20 | 20 | 20 | 20 | 25 | 25 | 25 | - | - | - | - | - | - | 30 | 30 | 30 | 30 | 30 | 30 | 35 | 35 | 35 | - | - | - | - | - | - | 40 | 40 | 40 | 40 | 40 | 40 | 50 | 50 | 50 | 65 | 65 | 65 | 65 | 75 | 75 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 9 | 9 | 82 | 88 | 94 | 104 | 110 | 122 | 152 | 164 | 176 | 202 | 228 | 254 | 280 | 320 | 346 | 34 | 40 | 46 | 56 | 62 | 74 | 92 | 104 | 116 | 134 | 160 | 186 | 212 | 242 | 268 | 22 | 22 | 22 | 22 | 22 | 22 | 30 | 30 | 30 | 35 | 35 | 35 | 35 | 40 | 40 | 12 | 12 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 19 | 19 | 19 | 19 | 24 | 24 | |
3.Applications
Heavy hex bolts can be used for many different applications that include fastening wood, steel, and other construction materials for projects such as docks, bridges, highway structures, and buildings. Heavy hex bolts with forged heads are also commonly used as headed anchor bolts.
Manufacturing
Portland Bolt manufactures heavy hex bolts from 1/2″ diameter through 2-1/2″ diameter in most ASTM, AASHTO, and SAE specifications. Special tooling can be created to produce nonstandard head dimensions or bolt heads with your company’s name and/or logo.