| BLACK ALLOY STEEL ROUNDS (METRIC SIZES) |
| DIAM | EN19 | EN19T | 4140 | 4145 | EN24 | EN24T | EN36 |
25 | | | | . | | | . |
28 | | | | . | | | . |
32 | | | | . | | |
|
35 | . | . | | . | | . | |
38 | | | | . | | | |
40 | . | . | | . | | . | . |
45 | | | | . | | | |
48 | . | . | | . | | . | . |
51 | | | | . | | | |
57 | | | | . | | | |
64 | | | | . | | | |
70 | | | | | | | |
75 | | | | | | | |
80 | | | | | . | . | . |
85 | | | | | | | |
90 | | | | | | | |
95 | | | | | | | |
105 | | | | | | | |
110 | | | | | | | |
115 | | | | | | | |
120 | | | | | | | |
130 | | | | | | | |
135 | | | | | | | . |
140 | | | | | | | |
150 | | | | | . | . | . |
155 | | | | | | | |
160 | | | | | . | . | . |
165 | | | | | | | |
170 | | | | | . | . | . |
180 | | | | | | | |
190 | | | | | | | |
200 | | | | | | | |
205 | | | | | . | | |
210 | | | | | | . | . |
215 | | | | | . | . | . |
230 | | | | | | . | . |
240 | | | | | | . | . |
255 | | | | | | . | . |
270 | | | | | . | . | . |
280 | | | | | . | . | . |
305 | | | | | . | . | . |
330 | | | | | . | . | . |
355 | | | | | . | . | . |
380 | | | | | . | . | . |
405 | | | | | . | . | . |
430 | | | | | . | . | . |
455 | | | | | . | . | . |