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UNC机械螺丝规格表 |
UNC 机械螺丝 2A Q (60º) | 规格 | 牙 数T | 外径(D) | 辗造径 | MAX | MIN | MAX | MIN | | #1 | 64 | 1.838 | 1.743 | 1.58 | 1.56 | | #2 | 56 | 2.169 | 2.066 | 1.87 | 1.85 | | #3 | 48 | 2.496 | 2.383 | 2.14 | 2.11 | | #4 | 40 | 2.824 | 2.695 | 2.40 | 2.37 | | #5 | 40 | 3.154 | 3.026 | 2.72 | 2.69 | | #6 | 32 | 3.484 | 3.333 | 2.94 | 2.91 | | #8 | 32 | 4.142 | 3.991 | 3.60 | 3.57 | | #10 | 24 | 4.800 | 4.618 | 4.09 | 4.05 | | #12 | 24 | 5.461 | 5.279 | 4.75 | 4.70 | | 1/4 | 20 | 6.322 | 6.117 | 5.50 | 5.45 | | 5/16 | 18 | 7.907 | 7.687 | 6.98 | 6.93 | | 3/8 | 16 | 9.491 | 9.254 | 8.45 | 8.40 | | 7/16 | 14 | 11.076 | 10.816 | 9.89 | 9.83 | | 1/2 | 13 | 12.661 | 12.386 | 11.39 | 11.32 | | 9/16 | 12 | 14.246 | 13.958 | 12.87 | 12.80 | | 5/8 | 11 | 15.834 | 15.528 | 14.33 | 14.26 | | 3/4 | 10 | 19.004 | 18.677 | 17.34 | 17.27 | | 7/8 | 9 | 22.176 | 21.824 | 20.34 | 20.26 | | 1" | 8 | 25.349 | 24.969 | 23.28 | 23.20 | | 11/8 | 7 | 28.519 | 28.103 | 26.16 | 26.07 |
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