| Classification | Standard Code | Specification | Length | Property Grade | Surface |
| Hexagon Head Bolt | GB30 | M5-M48 | 6-600 | 4.8 5.6 6.8 8.8 9.8 10.9 12.9 | Plain Black White Zinc Blue Zinc Yellow Zinc HDG |
| GB21 |
| GB5780-5786 |
| ANSI | | | 2 |
| A-6 | 1/4" - 2" | 3/8" - 25" | 5 |
| A-10 | | | 8 |
| DIN | | | 4.8 5.6 6.8 8.8 9.8 10.9 12.9 |
| 931 933 | M5-M48 | 6-600 |
| 601 558 603 | | |
| Internal Hex Screw | GB70 | M4-M48 | 6-600 | 4.8 8.8 10.9 |
| ANSI G-4 | 1/4" - 2" | 5/16" - 25" | 2 5 8 |
| DIN912 78984 | M4-M48 | 6-600 | 4.8 8.8 10.9 |
| Double End Bolt | GB897 898 900 901 | M4-M56 | 12-1000 | 4.8 8.8 10.9 (Grade-2) |
| ANSI C-6 | 1/4" - 2" | 1/2" - 40" |
| DIN938 939 835 | M4 - M56 | 12 - 1000 |
| Others | Standard Bolts Hexagon head bolt, internal hexagonal screw, double end bolt, stud bolt, carriage bolt, U bolt, Eye boltT bolt, adjusting bolt and irregular bolts, full thread stud, half thread screw |
| Classification | Standard Code | Specification | Length | Property Grade | Surface |
| Hex Head Nut | GB51 52 53 54 | M3 - M48 | | 5 8 10 | Plain Black White Zinc Blue Zinc Yellow Zinc HDG |
| GB6170 - 6174 |
| ANSI D - 6 | 1/4" - 2" | | 2 5 8 |
| DIN 934 555 | M6 - M48 | | 5 6 10 |
| Others | Standard Nuts Hexagon Head Nut, Hex flange nut, Stopping nut, Hex Slotted nut, stainless steel nut, and other nut |
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| Washers | Standard wahser, flat wahser, square wahser, thickness wahser, spring washer |
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| Other Fasteners | And other fasteners and special shaped parts used in Expressway guardrail, Steel structure, Construction, Automobile, Farm machinery, Mining fitting and others |
