UN 美制螺纹及尺寸表

3A 4.1656
0.19（#10） 10-24UNC 24 0.63 1.058 2A 4.8006
4.826
3A 4.826
10-28UNS 28 0.54 0.907 2A 4.8006
10-32UNF 32 0.472 0.784 2A 4.80314
3A 4.826
10-36UNS 36 0.421 0.706 2A 4.80314
5.842 5.9182
3.32486 3B 3.4036 3.59664 3.7084 3.77698 4.1656 3.4544 3.54076 2B 3.683 3.9624 4.13766 4.24688 4.826 3.7338 3.56616 3B 3.683 3.9497 4.13766 4.21894 4.826 3.7338 3.71856 2B 3.8354 4.064 4.23672 4.34594 4.826 3.8608 3.85826 2B 3.9624 4.1656 4.31038 4.40944 4.826 3.9878 3.88112 3B 3.9624 4.16814 4.31038 4.38404 4.826 3.9878 3.9624 2B 4.064 4.2164 4.3688 4.46786 4.826 4.0386 4.04368 2B 4.1402 4.2926 4.41452 4.5085 4.826 4.0894 4.17576 2B 4.2418 4.3688 4.4831 4.56946 4.826 4.2164 4.26974 2B 4.3434 4.445 4.53136 4.61264 4.826 4.3053 4.20116 2B 4.3434 4.5974 4.79806 4.90982 5.4864 4.4958 4.22656 3B 4.3434 4.58978 4.79806 4.88188 5.4864 4.4958 4.37896 2B 4.4958 4.7244 4.89712 5.0038 5.4864 4.572 4.40436 3B 4.4958 4.71678 4.89712 4.97586 5.4864 4.572 4.51866 2B 4.6228 4.826 4.97078 5.07492 5.4864 4.572 4.54152 3B 4.6228 4.8133 4.97078 5.04952 5.4864 4.572 4.87934 2B 4.7244 4.8768 5.0292 5.12826 5.4864 4.8006 4.6609 2B 4.8006 4.953 5.07492 5.1689 5.4864 4.8514 4.83616 2B 4.9022 5.0292 5.1435 5.22986 5.4864 4.9784 4.93014 2B 5.0038 5.1054 5.19176 5.27304 5.4864 4.9784 4.81076 1B 4.9784 5.2578 5.5245 5.70992 6.35 5.1054 4.81076 2B 4.9784 5.2578 5.5245 5.64896 6.35 5.1054 4.8387 3B 4.9784 5.25018 5.5245 5.61594 6.35 5.1054 5.06222 2B 5.207 5.461 5.66166 5.78358 6.35 5.3086 5.20446 2B 5.334 5.5626 5.73786 5.85216 6.35 5.4102 5.24256 1B 5.3594 5.588 5.76072 5.92582 6.35 5.4102 5.24256 2B 5.3594 5.588 6.82752 5.86994 6.35 5.4102 5.26796 3B 5.3594 5.5626 6.82752 5.842 6.35 5.4102 5.37972 2B 5.4864 5.6896 5.83438 5.94106 6.35 5.55498 5.40512 3B 5.4864 5.66166 5.83438 5.91312 6.35 5.55498 5.48894 2B 5.588 5.7404 5.8928 5.9944 6.35 5.6134 5.57022 2B 5.6642 5.8166 5.93852 6.03504 6.35 5.7912 5.69722 2B 5.7658 5.8928 6.0071 6.09854 6.35 5.7912
10-40UNS 40 0.378 0.635 2A 4.80314
10-48UNS 48 0.315 0.529 2A 4.80568
10-56UNS 56 0.271 0.454 2A 4.80822
0.216（#12） 12-24UNC 24 0.63 1.058 2A 5.461
0.486
3A 5.4864
1.6637 1.64592 1.6891 1.67386 1.96088 1.9431 1.99644 1.97866 2.2479 2.22758 2.29108 2.2733 2.51714 2.49428 2.58064 2.56032 2.84734 2.82702 2.88036 2.86004 3.08356 3.05816 3.18008 3.15722 3.7465 3.7211 3.79984
2.54 2B 2.6416 2.8956 2.56032 3B 2.6416 2.8956 2.72796 2B 2.8194 3.0226 2.74828 3B 2.8194 3.01244 3.19786 2B 3.302 3.5306 3.22072 3B 3.302 3.52806 3.30454 2B 3.4036 3.6068
3.65506 4.02844 4.07416 4.1275 4.21132 4.25196 4.26974
4.318 4.39674 4.45008 4.6863 4.73202 4.79044 4.83616 4.86918 4.90982 4.93014 4.9784 5.05714 5.11048 5.35432 5.40258 5.45338 5.53974 5.62356 5.60832 5.6515 5.69722 5.7277 5.77342 5.7912
56 0.271 0.454 2A 2.16916 3A 2.1844
64 0.236 0.397 2A 2.16916 3A 2.1844
48 0.315 0.529 2A 2.49682 3A 2.5146
56 0.271 0.454 2A 2.49682 3A 2.5146
40 0.378 0.635 2A 2.82448 3A 2.8448
1.397 1.397 1.5113 1.5113 1.7018 1.7018 1.778 1.778 1.9939 1.9939 2.0574 2.0574 2.1844 2.1844 2.2606 2.2606 2.5273 2.5273 2.5781 2.5781 2.7051 2.7051 2.8702 2.8702 3.4544 3.4544 3.4544
48 0.315 0.529 2A 2.82702 3A 2.8448
40 0.378 0.635 2A 3.15468 3A 3.175
44 0.344 0.577 2A 3.15722 3A 3.175
32 0.472 0.794 2A 3.48488 3A 3.5052
40 0.378 0.635 2A 3.48488 3A 3.5052
12-28UNF 28 0.54 0.907 2A 5.461
3A 5.4864
12-32UNEF 32 0.472 0.784 2A 5.46354
3A 5.4864
12-36UNS 36 0.421 0.706 2A 5.46354
12-40UNS 40 0.378 0.635 2A 5.46354
1/4-40UNS 40 0.378 0.635 2A 6.32714
1/4-48UNS 48 0.315 0.529 2A 6.32968
4.0259 4.61772 4.64312 4.6355 4.65074 4.6736 4.66344 4.6736 4.69138 4.70408 5.27812 5.30352 5.2959 5.3213 5.31114
内螺纹尺寸
螺纹
中径 螺纹外径 钻孔
Min
Max Min
直径
1.59766 1.59766 1.6256 1.6256 1.88976 1.88976 1.92786 1.92786 2.1717 2.1717 2.21996 2.21996 2.43332 2.43332 2.5019 2.5019 2.76352 2.76352 2.79908 2.54508 2.98958 2.98958 3.09372 3.09372 3.64998 3.64998 3.7084
中径
Min
1.53162 1.55956 1.5621 1.59004 1.82118 1.84912 1.86182 1.88976 2.0955 2.12852 2.1463 2.17932 2.3495 2.38506 2.42316 2.45618 2.67716 2.71526 2.7178 2.75082 2.89814 2.93624 3.00736 3.04292 3.55346 3.5941 3.61696
12-48UNS 48 0.315 0.529 2A 5.46608
12-56UNS 56 0.271 0.454 2A 5.46862
0.25" 1/4-20UNC 20 0.756 1.27 1A 6.32206
6.35
2A 6.32206
3A 6.35
1/4-24UNS 24 0.63 1.058 2A 6.32206
5.334 5.32384
5.334 5.35178 5.36448 6.01218 6.11632 6.14426 6.13918 6.15442 6.07568 6.1595 6.1849 6.1722 5.6896 6.18744 6.1976 6.21538
3.7084 4.11226 4.13766 4.21132 4.28752 4.31038 4.34594 4.39166 4.46278 4.51358 4.77266 4.79806 4.87172 4.89712 4.94792 4.97078 5.00634 5.05206 5.12318 5.17398 5.49656 5.49656 5.5245 5.63372 5.71246 5.73532 5.73532 5.76072 5.80898 5.83438 5.86994 5.91566 5.98678
螺纹小径 公差 螺纹
小径
Max 代号 Min
Max
1.36652 2B 1.42494 1.58242 1.38176 3B 1.42494 1.58242 1.41986 2B 1.4732 1.6129 1.4351 3B 1.4732 1.6129 1.63068 2B 1.69418 1.87198 1.64592 3B 1.69418 1.87198 1.69672 2B 1.75514 1.91262 1.71196 3B 1.75514 1.91262 1.86436 2B 1.94056 2.1463 1.88214 3B 1.94056 2.1463 1.95834 2B 2.02438 2.1971 1.97612 3B 2.02438 2.1971 2.06756 2B 2.15646 2.38506 2.08788 3B 2.15646 2.38506 2.19456 2B 2.27076 2.45872 2.21234 3B 2.27076 2.45872 2.39776 2B 2.48666 2.69748 2.41808 3B 2.48666 2.69748 2.46888 2B 2.55016 2.74066 2.48666 3B 2.55016 2.74066
1.58242 1.59766 1.61036 1.6256 1.87452 1.88976 1.91262 1.92786 2.15392 2.1717 2.20218 2.21996
2.413 2.43332 2.48412 2.5019 2.7432 2.76352 2.7813 2.79908 2.96926 2.98958 3.0734 3.09372 3.62712 3.64998 3.68808
公称 螺纹 直径 规格
0.073（#1） 1-64UNC 1.854 1-72UNF
0.086(#2) 2.184
2-56UNC 2-64UNF
0.099(3#)) 3-48UNC 2.515 3-56UNF
0.112(#4) 2.845
4-40UNC 4-48UNF
0.125(#5) 3.175
5-40UNC 5-44UNF
Βιβλιοθήκη Baidu
1/4-27UNS 27 0.56 0.941 2A 6.3246
1/4-28UNF 28 0.54 0.907 1A 6.3246
2A 6.3246
3A 6.35
1/4-32UNEF 32 0.472 0.784 2A 6.3246
3A 6.35
1/4-36UNS 36 0.421 0.706 2A 6.32714
1.8542 1.8542 1.8542 1.8542 2.1844 2.1844 2.1844 2.1844 2.5146 2.5146 2.5146 2.5146 2.8448 2.8448 2.8448 2.8448 3.175 3.175 3.175 3.175 3.5052 3.5052 3.5052 3.5052 4.1656 4.1656 4.1656
32 0.472 0.784 2A 4.14274 3A 4.1656
36 0.421 0.706 2A 4.14528
外螺纹尺寸
外径
螺纹
Min
Max
1.74244 1.75768 1.75006 1.7653 2.06502 2.08026 2.07264 2.08788 2.38252 2.4003 2.39268 2.41046 2.69494 2.71526 2.71272 2.7305 3.02514 3.04546 3.0353 3.05308 3.33248 3.3528 3.35534 3.37566 3.99034 4.0132 4.00558
0.138(#6） 6-32UNC 3.505 6-40UNF
0.164（#8） 8-32UNC 4.166 8-36UNF
UN 美制螺纹尺寸 Unit=mm
牙 牙 螺 公差 螺纹
数 高 距 代号 Max
64 0.236 0.397 2A 1.83896 3A 1.8542
72 0.21 0.353 2A 1.83896 3A 1.8542