よく調べる寸法をまとめました
- ねじ下穴径(JIS B 1004)
- 六角穴付きボルト(JIS B 1176)
- 十字穴付きなべ小ねじ(JIS B 1111)
- 十字穴付き皿小ねじ(JIS B 1111)
- ナット スタイル1(JIS B 1181)
- 平座金 等級A 第1選択(JIS B 1256)
- ベアリング( JIS B 1521)
ねじ下穴径(JIS B 1004)
| 呼び d | ピッチ P | 下穴径(引っ掛かり率90%) |
|---|---|---|
| M2 | 0.4 | 1.61 |
| M2.5 | 0.45 | 2.06 |
| M2.6 | ||
| M3 | 0.5 | 2.51 |
| M4 | 0.7 | 3.32 |
| M5 | 0.8 | 4.22 |
| M6 | 1 | 5.03 |
| M8 | 1.25 | 6.78 |
| M10 | 1.5 | 8.54 |
| M12 | 1.75 | 10.3 |
六角穴付きボルト(JIS B 1176)

| 呼び d | 頭径 dk | 頭高さ k | 穴の2面幅 s |
|---|---|---|---|
| M2 | 3.8 | 2 | 15 |
| M2.5 | 4.5 | 2.5 | 2 |
| M2.6 | |||
| M3 | 5.5 | 3 | 2.5 |
| M4 | 7 | 4 | 3 |
| M5 | 8.5 | 5 | 4 |
| M6 | 10 | 6 | 5 |
| M8 | 13 | 8 | 6 |
| M10 | 16 | 10 | 8 |
| M12 | 18 | 12 | 10 |
十字穴付きなべ小ねじ(JIS B 1111)

| 呼び d | 頭径 dk | ザグリ深さ k | 十字穴番号 |
|---|---|---|---|
| M2 | 3.2 | 1.6 | 0 |
| M2.5 | 4 | 2.1 | 1 |
| M2.6 | |||
| M3 | 5.6 | 2.4 | 1 |
| M4 | 8 | 3.1 | 2 |
| M5 | 9.5 | 3.7 | 2 |
| M6 | 12 | 4.6 | 3 |
| M8 | 16 | 6 | 4 |
| M10 | 20 | 7.5 | 4 |
十字穴付き皿小ねじ(JIS B 1111)

| 呼び d | 頭径 dk | ザグリ深さ k |
|---|---|---|
| M2 | 3.8 | 1.2 |
| M2.5 | 4.7 | 1.5 |
| M2.6 | ||
| M3 | 5.5 | 1.65 |
| M4 | 8.4 | 2.7 |
| M5 | 9.3 | 2.7 |
| M6 | 11.3 | 3.3 |
| M8 | 15.8 | 4.65 |
| M10 | 18.3 | 5 |
ナット スタイル1(JIS B 1181)

| 呼び D | 厚さ m | 2面幅 s | 対角距離 e |
|---|---|---|---|
| M2 | 1.6 | 4 | 4.6 |
| M2.5 | 2 | 5 | 5.8 |
| M2.6 | 2 | 5 | 5.8 |
| M3 | 2.4 | 5.5 | 6.4 |
| M4 | 3.2 | 7 | 8.1 |
| M5 | 4 | 8 | 9.2 |
| M6 | 5 | 10 | 12 |
| M8 | 6.5 | 13 | 15 |
| M10 | 8 | 17 | 20 |
| M12 | 10 | 19 | 22 |
平座金 等級A 第1選択(JIS B 1256)

| 呼び d | 内径 d1 | 外径 d2 | ||
|---|---|---|---|---|
| 共通 | 小形 | 並形 | 大形 | |
| M2 | 2.2 | 4.5 | 5 | - |
| M2.5 | 2.7 | 5 | 6 | - |
| M3 | 3.2 | 6 | 7 | 9 |
| M4 | 4.3 | 8 | 9 | 12 |
| M5 | 5.3 | 9 | 10 | 15 |
| M6 | 6.4 | 11 | 12 | 18 |
| M8 | 8.4 | 15 | 16 | 24 |
| M10 | 10.5 | 18 | 20 | 30 |
| M12 | 13 | 20 | 24 | 37 |
ベアリング( JIS B 1521)

【基本形】左側← | →右側【フランジ付き】
| 呼び | 内径 | 外径 | 幅 | 面取りR | シール | シールド | | | D1 | C1 | シール | シールド |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 673 | 3 | 6 | 2 | 0.08 | − | − | | | 7.2 | 0.6 | − | − |
| 683 | 3 | 7 | 2 | 0.1 | − | − | | | 8.1 | 0.5 | − | − |
| 693 | 3 | 8 | 3 | 0.15 | − | − | | | 9.5 | 0.7 | − | − |
| 603 | 3 | 9 | 3 | 0.15 | − | − | | | 10.5 | 0.7 | − | − |
| 623 | 3 | 10 | 4 | 0.15 | ○ | ○ | | | 11.5 | 1 | − | ○ |
| 633 | 3 | 13 | 5 | 0.2 | − | ○ | | | 15 | 1 | − | ○ |
| 674 | 4 | 7 | 2 | 0.08 | − | − | | | 8.2 | 0.6 | − | − |
| 684 | 4 | 9 | 2.5 | 0.1 | − | − | | | 10.3 | 0.6 | − | − |
| 694 | 4 | 11 | 4 | 0.15 | ○ | ○ | | | 12.5 | 1 | − | ○ |
| 604 | 4 | 12 | 4 | 0.2 | ○ | ○ | | | 13.5 | 1 | − | ○ |
| 624 | 4 | 13 | 5 | 0.2 | ○ | ○ | | | 15 | 1 | − | ○ |
| 634 | 4 | 16 | 5 | 0.3 | − | ○ | | | 18 | 1 | − | ○ |
| 675 | 5 | 8 | 2 | 0.08 | − | − | | | 9.2 | 0.6 | − | − |
| 685 | 5 | 11 | 3 | 0.15 | − | − | | | 12.5 | 0.8 | − | − |
| 695 | 5 | 13 | 4 | 0.2 | ○ | ○ | | | 15 | 1 | ○ | ○ |
| 605 | 5 | 14 | 5 | 0.2 | ○ | ○ | | | 16 | 1 | − | ○ |
| 625 | 5 | 16 | 5 | 0.3 | ○ | ○ | | | 18 | 1 | ○ | ○ |
| 635 | 5 | 19 | 6 | 0.3 | ○ | ○ | | | 22 | 1.5 | ○ | ○ |
| 676 | 6 | 10 | 2.5 | 0.1 | − | − | | | 11.2 | 0.6 | − | − |
| 686 | 6 | 13 | 3.5 | 0.15 | − | − | | | 15 | 1 | − | − |
| 696 | 6 | 15 | 5 | 0.2 | ○ | ○ | | | 17 | 1.2 | ○ | ○ |
| 606 | 6 | 17 | 6 | 0.3 | ○ | ○ | | | 19 | 1.2 | ○ | ○ |
| 626 | 6 | 19 | 6 | 0.3 | ○ | ○ | | | 22 | 1.5 | ○ | ○ |
| 636 | 6 | 22 | 7 | 0.3 | ○ | ○ | | | 25 | 1.5 | ○ | ○ |
| 677 | 7 | 11 | 2.5 | 0.1 | − | − | | | 12.2 | 0.6 | − | − |
| 687 | 7 | 14 | 3.5 | 0.15 | − | − | | | 16 | 1 | − | − |
| 697 | 7 | 17 | 5 | 0.3 | ○ | ○ | | | 19 | 1.2 | ○ | ○ |
| 607 | 7 | 19 | 6 | 0.3 | ○ | ○ | | | 22 | 1.5 | ○ | ○ |
| 627 | 7 | 22 | 7 | 0.3 | ○ | ○ | | | 25 | 1.5 | ○ | ○ |
| 637 | 7 | 26 | 9 | 0.3 | ○ | ○ | | | 29 | 2 | − | ○ |
| 678 | 8 | 12 | 2.5 | 0.1 | − | − | | | 13.2 | 0.6 | − | − |
| 688 | 8 | 16 | 4 | 0.2 | − | − | | | 18 | 1 | − | − |
| 698 | 8 | 19 | 6 | 0.3 | ○ | ○ | | | 22 | 1.5 | ○ | ○ |
| 608 | 8 | 22 | 7 | 0.3 | ○ | ○ | | | 25 | 1.5 | ○ | ○ |
| 628 | 8 | 24 | 8 | 0.3 | ○ | ○ | | | 26 | 2 | ○ | ○ |
| 638 | 8 | 28 | 9 | 0.3 | ○ | ○ | | | 30.25 | 2.25 | − | ○ |
| 679 | 9 | 14 | 3 | 0.1 | − | − | | | 15.5 | 0.8 | − | − |
| 689 | 9 | 17 | 4 | 0.2 | − | − | | | 19 | 1 | − | − |
| 699 | 9 | 20 | 6 | 0.3 | ○ | ○ | | | 23 | 1.5 | ○ | ○ |
| 609 | 9 | 24 | 7 | 0.3 | ○ | ○ | | | 27 | 1.5 | ○ | ○ |
| 629 | 9 | 26 | 8 | 0.3 | ○ | ○ | | | 28 | 2 | ○ | ○ |
| 639 | 9 | 30 | 10 | 0.6 | − | ○ | | | 32.5 | 2.5 | − | ○ |
| 6800 | 10 | 19 | 5 | 0.3 | ○ | ○ | | | ||||
| 6900 | 10 | 22 | 6 | 0.3 | ○ | ○ | | | ||||
| 6000 | 10 | 26 | 8 | 0.3 | ○ | ○ | | | ||||
| 6200 | 10 | 30 | 9 | 0.6 | ○ | ○ | | | ||||
| 6300 | 10 | 35 | 11 | 0.6 | ○ | ○ | | | ||||
| 6801 | 12 | 21 | 5 | 0.3 | ○ | ○ | | | ||||
| 6901 | 12 | 24 | 6 | 0.3 | ○ | ○ | | | ||||
| 16001 | 12 | 28 | 7 | 0.3 | − | − | | | ||||
| 6001 | 12 | 28 | 8 | 0.3 | ○ | ○ | | | ||||
| 6201 | 12 | 32 | 10 | 0.6 | ○ | ○ | | | ||||
| 6301 | 12 | 37 | 12 | 1 | ○ | ○ | | | ||||
| 6802 | 15 | 24 | 5 | 0.3 | ○ | ○ | | | ||||
| 6902 | 15 | 28 | 7 | 0.3 | ○ | ○ | | | ||||
| 16002 | 15 | 32 | 8 | 0.3 | − | − | | | ||||
| 6002 | 15 | 32 | 9 | 0.3 | ○ | ○ | | | ||||
| 6202 | 15 | 35 | 11 | 0.6 | ○ | ○ | | | ||||
| 6302 | 15 | 42 | 13 | 1 | ○ | ○ | | | ||||
| 6803 | 17 | 26 | 5 | 0.3 | ○ | ○ | | | ||||
| 6903 | 17 | 30 | 7 | 0.3 | ○ | ○ | | | ||||
| 16003 | 17 | 35 | 8 | 0.3 | − | − | | | ||||
| 6003 | 17 | 35 | 10 | 0.3 | ○ | ○ | | | ||||
| 6203 | 17 | 40 | 12 | 0.6 | ○ | ○ | | | ||||
| 6303 | 17 | 47 | 14 | 1 | ○ | ○ | | | ||||
| 6804 | 20 | 32 | 7 | 0.3 | ○ | ○ | | | ||||
| 6904 | 20 | 37 | 9 | 0.3 | ○ | ○ | | | ||||
| 16004 | 20 | 42 | 8 | 0.3 | − | − | | | ||||
| 6004 | 20 | 42 | 12 | 0.6 | ○ | ○ | | | ||||
| 6204 | 20 | 47 | 14 | 1 | ○ | ○ | | | ||||
| 6304 | 20 | 52 | 15 | 1.1 | ○ | ○ | | | ||||
| 60/22 | 22 | 44 | 12 | 0.6 | ○ | ○ | | | ||||
| 62/22 | 22 | 50 | 14 | 1 | ○ | ○ | | | ||||
| 63/22 | 22 | 56 | 16 | 1.1 | ○ | ○ | | | ||||
| 6805 | 25 | 37 | 7 | 0.3 | ○ | ○ | | | ||||
| 6905 | 25 | 42 | 9 | 0.3 | ○ | ○ | | | ||||
| 16005 | 25 | 47 | 8 | 0.3 | − | − | | | ||||
| 6005 | 25 | 47 | 12 | 0.6 | ○ | ○ | | | ||||
| 6205 | 25 | 52 | 15 | 1 | ○ | ○ | | | ||||
| 6305 | 25 | 62 | 17 | 1.1 | ○ | ○ | | | ||||
| 60/28 | 28 | 52 | 12 | 0.6 | ○ | ○ | | | ||||
| 62/28 | 28 | 58 | 16 | 1 | ○ | ○ | | | ||||
| 63/28 | 28 | 68 | 18 | 1.1 | ○ | ○ | | | ||||
| 6806 | 30 | 42 | 7 | 0.3 | ○ | ○ | | | ||||
| 6906 | 30 | 47 | 9 | 0.3 | ○ | ○ | | | ||||
| 16006 | 30 | 55 | 9 | 0.3 | − | − | | | ||||
| 6006 | 30 | 55 | 13 | 1 | ○ | ○ | | | ||||
| 6206 | 30 | 62 | 16 | 1 | ○ | ○ | | | ||||
| 6306 | 30 | 72 | 19 | 1.1 | ○ | ○ | | | ||||
| 60/32 | 32 | 58 | 13 | 1 | ○ | ○ | | | ||||
| 62/32 | 32 | 65 | 17 | 1 | ○ | ○ | | | ||||
| 63/32 | 32 | 75 | 20 | 1.1 | ○ | ○ | | | ||||
| 6807 | 35 | 47 | 7 | 0.3 | ○ | ○ | | | ||||
| 6907 | 35 | 55 | 10 | 0.6 | ○ | ○ | | | ||||
| 16007 | 35 | 62 | 9 | 0.3 | − | − | | | ||||
| 6007 | 35 | 62 | 14 | 1 | ○ | ○ | | | ||||
| 6207 | 35 | 72 | 17 | 1.1 | ○ | ○ | | | ||||
| 6307 | 35 | 80 | 21 | 1.5 | ○ | ○ | | | ||||
| 6808 | 40 | 52 | 7 | 0.3 | ○ | ○ | | | ||||
| 6908 | 40 | 62 | 12 | 0.6 | ○ | ○ | | | ||||
| 16008 | 40 | 68 | 9 | 0.3 | − | − | | | ||||
| 6008 | 40 | 68 | 15 | 1 | ○ | ○ | | | ||||
| 6208 | 40 | 80 | 18 | 1.1 | ○ | ○ | | | ||||
| 6308 | 40 | 90 | 23 | 1.5 | ○ | ○ | | | ||||
| 6809 | 45 | 58 | 7 | 0.3 | ○ | ○ | | | ||||
| 6909 | 45 | 68 | 12 | 0.6 | ○ | ○ | | | ||||
| 16009 | 45 | 75 | 10 | 0.6 | − | − | | | ||||
| 6009 | 45 | 75 | 16 | 1 | ○ | ○ | | | ||||
| 6209 | 45 | 85 | 19 | 1.1 | ○ | ○ | | | ||||
| 6309 | 45 | 100 | 25 | 1.5 | ○ | ○ | | | ||||
| 6810 | 50 | 65 | 7 | 0.3 | ○ | ○ | | | ||||
| 6910 | 50 | 72 | 12 | 0.6 | ○ | ○ | | | ||||
| 16010 | 50 | 80 | 10 | 0.6 | − | − | | | ||||
| 6010 | 50 | 80 | 16 | 1 | ○ | ○ | | | ||||
| 6210 | 50 | 90 | 20 | 1.1 | ○ | ○ | | | ||||
| 6310 | 50 | 110 | 27 | 2 | ○ | ○ | | | ||||
| 6811 | 55 | 72 | 9 | 0.3 | ○ | ○ | | | ||||
| 6911 | 55 | 80 | 13 | 1 | ○ | ○ | | | ||||
| 16011 | 55 | 90 | 11 | 0.6 | − | − | | | ||||
| 6011 | 55 | 90 | 18 | 1.1 | ○ | ○ | | | ||||
| 6211 | 55 | 100 | 21 | 1.5 | ○ | ○ | | | ||||
| 6311 | 55 | 120 | 29 | 2 | ○ | ○ | | | ||||
| 6812 | 60 | 78 | 10 | 0.3 | ○ | ○ | | | ||||
| 6912 | 60 | 85 | 13 | 1 | ○ | ○ | | | ||||
| 16012 | 60 | 95 | 11 | 0.6 | − | − | | | ||||
| 6012 | 60 | 95 | 18 | 1.1 | ○ | ○ | | | ||||
| 6212 | 60 | 110 | 22 | 1.5 | ○ | ○ | | | ||||
| 6312 | 60 | 130 | 31 | 2.1 | ○ | ○ | | | ||||
| 6813 | 65 | 85 | 10 | 0.6 | ○ | ○ | | | ||||
| 6913 | 65 | 90 | 13 | 1 | ○ | ○ | | | ||||
| 16013 | 65 | 100 | 11 | 0.6 | − | − | | | ||||
| 6013 | 65 | 100 | 18 | 1.1 | ○ | ○ | | | ||||
| 6213 | 65 | 120 | 23 | 1.5 | ○ | ○ | | | ||||
| 6313 | 65 | 140 | 33 | 2.1 | ○ | ○ | | | ||||
| 6814 | 70 | 90 | 10 | 0.6 | ○ | ○ | | | ||||
| 6914 | 70 | 100 | 16 | 1 | ○ | ○ | | | ||||
| 16014 | 70 | 110 | 13 | 0.6 | − | − | | | ||||
| 6014 | 70 | 110 | 20 | 1.1 | ○ | ○ | | | ||||
| 6214 | 70 | 125 | 24 | 1.5 | ○ | ○ | | | ||||
| 6314 | 70 | 150 | 35 | 2.1 | ○ | ○ | | | ||||
| 6815 | 75 | 95 | 10 | 0.6 | ○ | ○ | | | ||||
| 6915 | 75 | 105 | 16 | 1 | ○ | ○ | | | ||||
| 16015 | 75 | 115 | 13 | 0.6 | − | − | | | ||||
| 6015 | 75 | 115 | 20 | 1.1 | ○ | ○ | | | ||||
| 6215 | 75 | 130 | 25 | 1.5 | ○ | ○ | | | ||||
| 6315 | 75 | 160 | 37 | 2.1 | ○ | ○ | | | ||||
| 6816 | 80 | 100 | 10 | 0.6 | ○ | ○ | | | ||||
| 6916 | 80 | 110 | 16 | 1 | ○ | ○ | | | ||||
| 16016 | 80 | 125 | 14 | 0.6 | − | − | | | ||||
| 6016 | 80 | 125 | 22 | 1.1 | ○ | ○ | | | ||||
| 6216 | 80 | 140 | 26 | 2 | ○ | ○ | | | ||||
| 6316 | 80 | 170 | 39 | 2.1 | ○ | ○ | | | ||||
| 6817 | 85 | 110 | 13 | 1 | ○ | ○ | | | ||||
| 6917 | 85 | 120 | 18 | 1.1 | ○ | ○ | | | ||||
| 16017 | 85 | 130 | 14 | 0.6 | − | − | | | ||||
| 6017 | 85 | 130 | 22 | 1.1 | ○ | ○ | | | ||||
| 6217 | 85 | 150 | 28 | 2 | ○ | ○ | | | ||||
| 6317 | 85 | 180 | 41 | 3 | ○ | ○ | | | ||||
| 6818 | 90 | 115 | 13 | 1 | ○ | ○ | | | ||||
| 6918 | 90 | 125 | 18 | 1.1 | ○ | ○ | | | ||||
| 16018 | 90 | 140 | 16 | 1 | − | − | | | ||||
| 6018 | 90 | 140 | 24 | 1.5 | ○ | ○ | | | ||||
| 6218 | 90 | 160 | 30 | 2 | ○ | ○ | | | ||||
| 6318 | 90 | 190 | 43 | 3 | ○ | ○ | | | ||||
| 6819 | 95 | 120 | 13 | 1 | ○ | ○ | | | ||||
| 6919 | 95 | 130 | 18 | 1.1 | ○ | ○ | | | ||||
| 16019 | 95 | 145 | 16 | 1 | − | − | | | ||||
| 6019 | 95 | 145 | 24 | 1.5 | ○ | ○ | | | ||||
| 6219 | 95 | 170 | 32 | 2.1 | ○ | ○ | | | ||||
| 6319 | 95 | 200 | 45 | 3 | ○ | ○ | | | ||||
| 6820 | 100 | 125 | 13 | 1 | ○ | ○ | | | ||||
| 6920 | 100 | 140 | 20 | 1.1 | ○ | ○ | | | ||||
| 16020 | 100 | 150 | 16 | 1 | − | − | | | ||||
| 6020 | 100 | 150 | 24 | 1.5 | ○ | ○ | | | ||||
| 6220 | 100 | 180 | 34 | 2.1 | ○ | ○ | | | ||||
| 6320 | 100 | 215 | 47 | 3 | ○ | ○ | | |