track bolts and nuts for undercarriage parts like sprocket , segment.
Techquenic
| Grade | Strength | Hardness | | 8.8grade | 800Mpa | HRC24~30 | | 10.9Grade | 1000Mpa | HRC32~40 | | 12.9Grade | 1200Mpa | HRC36~42 | |
| product list |
| 2A3223 | 1/2" ×20UNF×47 | | 7H3596 | 9/16" ×18UNF×51 | | 7H3597 | 5/8" ×18UNF×54 | | 5H8756 | 5/8" ×18UNF×57 | | 1S1859 | 3/4" ×16UNF×55 | | 7H3598 | 3/4" ×16UNF×61 | | 6V1792 | 3/4" ×16UNF×61D | | 7H3599 | 7/8" ×14UNF×67 | | 6V1723 | 7/8" ×14UNF×87 | | 2M5657 | 1" ×14UNS×75 | | 3T6308 | 1" ×14UNS×80 | | 6T2638 | 1" ×14UNS×90 | | 6V1726 | 1" ×14UNS×101 | | 7T1000 | 1-1/8×18unf ×96 | | 6S3419 | 1/2" ×20UNF×(19×15) | | 7K2017 | 9/16" ×18UNF×(22×18) | | 1M1408 | 5/8" ×18UNF×(25×18) | | 1S1860 | 3/4" ×16UNF×(28.6×19) | | 2S2140 | 7/8" ×14UNF×(33×22.5) | | 1S6421 | 1" ×14UNS×(38×25) | | 2M5656 | 1" ×14UNS×(35×25) | | 7G6442 | 7/8" ×14UNF×(33×34.5) | | 7G0343 | 1" ×14UNS×(38×40) | | 5P8221 | 1 1/8" ×12UNF×(42×43) | | | 101-32-11210 | M12×1.5×40 | | 79039443 | M18×1.5×55F | | 79004259 | M18×1.5×60 | | 20Y-32-11210 | M20×1.5×56F | | 9W3619 | M20×1.5×55D | | 71401179 | M20×1.5×62F | | 6Y0846 | M20×1.5×63 | | 71401192 | M20×1.5×65F | | 154-32-31210 | M20×1.5×70 | | 207-32-51210 | M22×1.5×56F | | 71428357 | M22×1.5×62F | | 6Y6024 | M22×1.5×67D | | 76007851 | M22×1.5×70F | | 208-32-51210 | M24×1.5×65F | | 21M-32-11260 | M24×1.5×72 | | 175-32-11210 | M24×1.5×78 | | 195-32-61210 | M27×1.5×82 | | 6Y7432 | M27×1.5×90 | | 195-32-11210 | M30×1.5×96 | | M12*1.5NUT | M12×1.5×(19×15) | | 4982325 | M18×1.5×(27×19) | | 9W3361 | M20×1.5×(28.6×22) | | 170-32-11222 | M22×1.5×(32×22) | | 178-32-11220 | M24×1.5×(35×24) | | 195-32-11221 | M27×1.5×(41×27) | | 195-32-61221 | M30×2.0×(46×38) | | 01803-02026 | M20×1.5×(30×24) | | 01803-02430 | M24×2.0×(36×24) | | Package details   |

