Hexagon head bolt/nut/flat pad
| Standard | Size | Grade | Surafce Treatment |
| GB/T5782 | M12-M64 | 5.6/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
| IS0 4014 | M12-M64 | 5.6/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
| DIN 931 | M12-M39 | 5.6/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
| AS1110.1 | M12-M64 | 5.6/8.8/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
| GOST 7798 | M12-64 | 5.6/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
| BS3692 | M12-M68 | 4.6/4.8/6.8/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
| BS4190 | M12-M68 | 4.6/4.8/6.8/8.8/10.9 | Black / HDG / Dacrome / Mechanical |
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