Tabel 1 - Nut dimensions to cut - illustration 1
Model
A
number
(mm)
NC-1319
M6 - M12
NC-1924
M12 - M16
NC-2432
M-16 - M22
NC-3241
M22 - M27
NC-4150
M27 - M33
NC-5060
M33 - M39
NC-6075
M39 - M48
Tabel 2 - Nut class specifications
Nut Class
corresponding
DIN ISO 898
Bolt CLass
4 or 5
4.6
4 or 5
4.8
5
5.8
8
8.8
9
9.9
10 or 12
10.9
10 or 12
12.9
illustration 2
Spring washer
illustration 3
A
B
(inch)
(mm)
1 /4 - 1 /2
10 - 19
1 /2 - 5 /8
19 - 24
5 /8 - 7 /8
24 - 32
7 /8 - 1 1 /8
32 - 41
1 1 /8 - 1 3 /8
41 - 50
1 3 /8 - 1 1 /2
50 - 60
1 1 /2 - 1 7 /8
60 - 75
SAE J429
Grades
1
A193, B8, A307, Grade A
1
2
5
5+
A193, B7, GB16
8
A490, A354, Grade 8B
--
A540, B21 through B24
illustration 1
B
(inch)
.50 - .75
.75 - .94
.94 - 1.13
1.13 - 1.56
1.56 - 2.00
2.00 - 2.25
2.36 - 2.88
illustration 4
ASTM
Grades
---
---
A325, A449
3
Spring washer