| Company | City | Country | Company profile |
|---|---|---|---|
| TOP LUSAVOUGA - Hardware and Tools | Cacia | Portugal | See Detail |
| TOP Jiaxing Haina Fastener Co.,Limited | JIAXING | China | See Detail |
| TOP WENZHOU XIONGLIAN HARDWARE MECHANICAL CO., LTD. | Wenzhou | China | See Detail |
| TOP Shanghai Tengri Metal Products Co., Ltd | Shanghai | China | See Detail |
| TOP GC PRECISION | Ghaziabad | India | See Detail |
| TOP Hanshin Neji Co.,Ltd. | Osaka | Japan | See Detail |
| TOP Maruti Metal Industries | Jamnagar | India | See Detail |
| Inox 秘密研究所 Ltd | Co Tipperary | Ireland | |
| Mahaveer Overseas | Mumbai | India | |
| KOVO ROP脕K s.r.o. | Byst艡ice nad Pern拧tejnem | Czech Republic |
d1 - pin diameter
d2 - the nominal diameter of the thread
b - length of the thread
a - taper
L - pin length
t - the depth of the hole (is not less than)
Steel: 125 - 245 HV
Stainless: -
Plastic: -
Non Ferrous: -
Thread: 6H
Notes:
Type A - ground Ra = 0,8碌m, Type B - turned Ra = 3
| d | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| d2 | M 4 |
M 5 |
M 6 |
M 8 |
M 8 |
M 10 |
M 12 |
| t | 6 | 8 | 10 | 12 | 12 | 16 | 18 |
| f | 0,8 | 1 | 1,2 | 1,6 | 1,6 | 2 | 2,5 |