20 |
|
din 603 - 2017
cup head square neck bolts
|
|
21 |
|
gb 12 - 1976
semi-round head square neck bolts
|
|
22 |
|
gb /t 3632 (s) - 1995
torshear type high strength bolt for steel structures
|
|
23 |
|
gb 835 - 1988
knurled screws
|
|
24 |
|
asme b 18.10 - 2006 (r2016)
elliptic neck track bolts [table 2] (a449, a354)
|
|
25 |
|
ansi/asme b 18.5 - 2012
round head bolts,(inch series) [table1] (a307, sae j429, f468, f593)
|
|
26 |
|
bs 325 - 1947
black cup aquare neck bolts
|
|
|