D186、D188、D261
20/12、28/15、38/17、40/25、50/30
customers' prints
CLASS: 4.6、5.6、8.8、10.9/12.9、A2、A4

DIN7504、SAE J78
ROOFING SCREWS、SANDWICH SCREWS、WINDOW SCREWS
customer's prints
CLASS: STEEL、AISI 410SS、A2/A4 (BI-METAL)、
             ALUMINIUM T-6

Sph. Short Hex Wheel Bolts
Sph. Hex Wheel Bolts
Sph. Long Hex Wheel Bolts
Round Bolts w/ Ribbed Neck
CLASS: 8.8、10.9/12.9

Hex Conic Wheel Nuts 
Flat Head Hex Wheel Nuts
Long Flat Head Hex Wheel Nuts
Expanded Flat Head Hex Wheel Nuts
CLASS: 8、10

D908、D910、SAE 090109B
customers' prints
CLASS: 4.6、5.6、8.8、10.9/12.9、A2

D938、D939、IFI 136
D6921、IFI 111
D603、D604、D605、D607、D608、ANSI 、B18.5
D444
D908、ANSI B18.3
customers' prints
CLASS: 4.6、4.8、5.6、8.8、10.9/12.9、A2、A4