ANSI/ASME B 18.21.1
No.2~3″
BS 1802
1/8″~3″
DIN 127 B DIN 7980
2.5mm~48mm
JIS B 1251
2mm~39mm
The other kinds of special & unusual spring washer.Spring washer made of special steel, stainless steel,copper.
Hex Bolts
GB 30-76 GB 5782-86 GB 5783-86
M6×(16~60) M8×(20~80) M10×(20~80) M12×(20~80) M16×(25~150) M20×(35~170)
JIS B 1180
DIN 558 DIN 931 DIN 601 DIN 933
ANSI/ASME B 18.2.1
1/4~20×(5/8~2 1/2) 5/16~18×(3/4~3″) 3/8~16×(3/4~3″) 1/2~13×(3/4″~3″) 5/8~11×(1″~6″) 3/4~10×(1 3/8~7″)
The other kinds of special & unusual bolts
hex socket cap screw
HEX SOCKET CAP SCREWS
GB 70-85(76)
M6×(16~50) M8×(20~65) M10×(20~75) M12×(25~100) M16×(35~150) M20×(40~150)
JISB 1176
DIN 912
ANSI/ASME B 18.3
1/4~20×(5/8~2″) 5/16~18×(3/4~2 1/2″) 3/8~16×(3/4~3″) 1/2~13×(1″~4″) 5/8~11×(1 3/8~6″) 3/4~10×(1 5/8~6″)