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Hex Bolt Dimensions
| Bolt Diameter | D | F | C | H | |||||
|---|---|---|---|---|---|---|---|---|---|
| Body Diameter | Width Across Flats | Width Across Corners | Height | ||||||
| Max | Basic | Max | Min | Max | Min | Basic | Max | Min | |
| 1⁄2 | 0.515 | 3⁄4 | 0.750 | 0.725 | 0.866 | 0.826 | 11⁄32 | 0.364 | 0.302 |
| 5⁄8 | 0.642 | 15⁄16 | 0.938 | 0.906 | 1.083 | 1.033 | 27⁄64 | 0.444 | 0.378 |
| 3⁄4 | 0.768 | 11⁄8 | 1.125 | 1.088 | 1.299 | 1.240 | 1⁄2 | 0.524 | 0.455 |
| 7⁄8 | 0.895 | 15⁄16 | 1.312 | 1.269 | 1.516 | 1.447 | 37⁄64 | 0.604 | 0.531 |
| 1 | 1.022 | 11⁄2 | 1.500 | 1.450 | 1.732 | 1.653 | 43⁄64 | 0.700 | 0.591 |
| 11⁄8 | 1.149 | 111⁄16 | 1.688 | 1.631 | 1.949 | 1.859 | 3⁄4 | 0.780 | 0.658 |
| 11⁄4 | 1.277 | 17⁄8 | 1.875 | 1.812 | 2.165 | 2.066 | 27⁄32 | 0.876 | 0.749 |
| 13⁄8 | 1.404 | 21⁄16 | 2.062 | 1.994 | 2.382 | 2.273 | 29⁄32 | 0.940 | 0.810 |
| 11⁄2 | 1.531 | 21⁄4 | 2.250 | 2.175 | 2.598 | 2.480 | 1 | 1.036 | 0.902 |
| 15⁄8 | 1.658 | 27⁄16 | 2.438 | 2.356 | 2.815 | 2.616 | 13⁄32 | 1.116 | 0.978 |
| 13⁄4 | 1.785 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 15⁄32 | 1.196 | 1.054 |
| 17⁄8 | 1.912 | 213⁄16 | 2.812 | 2.719 | 3.248 | 3.099 | 11⁄4 | 1.276 | 1.130 |
| 2 | 2.039 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 111⁄32 | 1.388 | 1.175 |
| 21⁄4 | 2.305 | 33⁄8 | 3.375 | 3.262 | 3.897 | 3.719 | 11⁄2 | 1.548 | 1.327 |
| 21⁄2 | 2.559 | 33⁄4 | 3.750 | 3.625 | 4.330 | 4.133 | 121⁄32 | 1.708 | 1.479 |
| Dimensions per ASME B18.2.1 2010 | |||||||||
Stock Domestic Hex Bolts
Stock Domestic Hex Bolts
| Length | Diameter | |||||||
|---|---|---|---|---|---|---|---|---|
| 5/8" | 3/4" | 7/8" | 1" | |||||
| Black | Galv. | Black | Galv. | Black | Galv. | Black | Galv. | |
| 12 | - | 18001 | - | 18010 | - | - | - | - |
| 14 | - | - | - | 18014 | - | - | - | - |
| 16 | - | - | 18017 | 18018 | - | 18040 | - | 18054 |
| 18 | - | 18003 | 18021 | 18022 | - | 18041 | 18055 | 18056 |
| 20 | - | - | - | 18024 | - | 18042 | - | 18058 |
| 24 | - | 18005 | 18027 | 18028 | - | 18043 | 18061 | 18062 |
| 26 | - | - | - | 18030 | - | - | - | - |
| 30 | - | - | - | 18034 | - | 18045 | - | 18872 |
| 36 | - | - | - | - | - | - | - | 18877 |
| Other sizes and finishes available on request. | ||||||||
Stock Import Hex Bolts
| Length (in.) | Diameter | |||||
|---|---|---|---|---|---|---|
| 1/2" | 5/8" | 3/4" | ||||
| Black | Galv. | Black | Galv. | Black | Galv. | |
| 1 | 10235 | 10236 | - | - | - | - |
| 11⁄2 | 10239 | 10240 | 10339 | 10340 | - | - |
| 2 | 10243 | 10244 | 10343 | 10344 | 10481 | 10482 |
| 21⁄2 | 10247 | 10248 | 10347 | 10348 | - | - |
| 3 | 10251 | 10252 | - | - | 10489 | 10490 |
| 31⁄2 | 10253 | 10254 | - | - | 10493 | 10494 |
| 4 | 10255 | 10256 | - | - | 10497 | 10498 |
| 41⁄2 | 10257 | 10258 | 10361 | 10362 | 10499 | 10500 |
| 5 | 10259 | 10260 | 10363 | 10364 | 10501 | 10502 |
| 51⁄2 | - | - | - | - | 10503 | 10504 |
| 6 | 10263 | 10264 | 10367 | 10368 | 10505 | 10506 |
| 61⁄2 | 10265 | 10266 | 10369 | 10370 | 10507 | 10508 |
| 7 | 10267 | 10268 | 10371 | 10372 | 10509 | 10510 |
| 71⁄2 | - | - | 10373 | 10374 | 10511 | 10512 |
| 8 | 10271 | 10272 | 10375 | 10376 | 10513 | 10514 |
| 81⁄2 | - | - | - | - | 10515 | 10516 |
| 9 | 10275 | 10276 | 10379 | 10380 | 10517 | 10518 |
| 10 | 10279 | 10280 | 10383 | 10384 | 18320 | 18321 |
| 11 | - | - | 10387 | 10388 | 18324 | 18325 |
| 12 | 10287 | 10288 | 18310 | 18311 | 18326 | 18327 |
| 13 | - | - | - | - | 18409 | 19223 |
| 14 | 10295 | 10296 | 18312 | 18313 | 19227 | 19228 |
| 15 | - | - | - | - | 19229 | 19230 |
| 16 | - | - | 18314 | 18315 | 18410 | 19231 |
| 18 | 18777 | 18778 | - | - | - | - |
Machine Screw Diameters
| Size | Thread Diameter | |
|---|---|---|
| Decimal | Nearest Fractional | |
| #0 | 0.06" | 1/16" |
| #1 | 0.07" | 5/64" |
| #2 | 0.08" | 3/32" |
| #3 | 0.09" | 7/64" |
| #4 | 0.11" | 7/64" |
| #5 | 0.12" | 1/8" |
| #6 | 0.13" | 9/64" |
| #8 | 0.16" | 5/32" |
| #10 | 0.19" | 3/16" |
| #12 | 0.21" | 7/32" |
| #14 | 0.24" | 1/4" |
General
Fastener length is generally measured from the point where the surface of the material will be when the fastener is installed to the end of the fastener. Thus, fasteners with heads that sit above the surface are measured from under the head to the end of the fastener, while fasteners that sit flush with the surface are measured from the top of the head to the end of the fastener.
Head Above Surface / Countersunk Head / Oval Head
Specific Fasteners
There are some 'oddball' fasteners like U-bolts, hanger bolts, and shoulder bolts where length is measured differently. Throughout our catalog you will find detailed drawings indicating where measurements are taken when selecting a fastener.
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Types of Bolts | ||||
Machine Bolts Application Industries
Sunflex Metal Industries are engaged in manufacturing of robust quality of Machine Bolts. These Machine Bolts are widely used in the following industries:
Mining Industries Transport Industries- Rail and Road Construction Industries / Building Systems Manufacturing Industries Agriculture Industries Energy Industries Water Industries Automotive Industries Ship Building Industries Nuclear Power Plant Paper & Pulp Industries Sugar Industries Engineering Cement Industries Petro-Chemical Industries Food Industries Oil & Gas Industries Chemical & Pharmaceutical Industries
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Keywords : Machine Bolt / machine bolt and stud bolt / machine bolt definition / machine bolt vs stud bolt / machine bolt material / machine bolt dimensions / define machine bolt / types of machine screws heads / machine bolt sizes
