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80° 开槽半沉头清根 AB、ABR型自攻螺钉 ASME B 18.6.3 (H3C+T1A) - 2024

选择规格尺寸 点击↓

0#

1#

2#

3#

4#

5#

6#

7#

8#

10#

12#

1/4

5/16

3/8

7/16

1/2

ASME B 18.6.3 (H3C+T1A) - 2024 80° 开槽半沉头清根 AB、ABR型自攻螺钉

尺寸单位: inch
美标ASME B18.6.3 (H3C+T1A) - 2024 ASME18.6 80° 开槽半沉头清根 AB、ABR型自攻螺钉
ASME B 18.6.3 (H3C+T1A) - 2024 80° 开槽半沉头清根 AB、ABR型自攻螺钉
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单重计算 公差
螺纹尺寸
d
0# 1# 2# 3# 4# 5# 6# 7#
d 公称
PP
dk 最大值
最小值
k 参考值
f 参考值
n 最大值
最小值
t 最大值
最小值
α 最大值
最小值
L0 ① 公称
Y ① 螺纹过渡长度(全螺纹) 最大值
b ① 螺纹长度 (长螺钉) 最小值
0.0600 0.0730 0.0860 0.0990 0.1120 0.1250 0.1380 0.1510
48 42 32 28 24 20 20 19
0.112 0.137 0.162 0.187 0.212 0.237 0.262 0.287
0.096 0.120 0.144 0.167 0.191 0.215 0.238 0.262
0.025 0.031 0.036 0.042 0.047 0.053 0.059 0.064
0.021 0.025 0.029 0.033 0.037 0.041 0.045 0.049
0.023 0.026 0.031 0.035 0.039 0.043 0.048 0.048
0.016 0.019 0.023 0.027 0.031 0.035 0.039 0.039
0.028 0.034 0.040 0.047 0.053 0.059 0.065 0.071
0.022 0.027 0.033 0.038 0.043 0.048 0.053 0.059
82° 82° 82° 82° 82° 82° 82° 82°
80° 80° 80° 80° 80° 80° 80° 80°
7/16 9/16 5/8 3/4 13/16 15/16 1 1-1/8
0.021 0.024 0.031 0.036 0.042 0.050 0.050 0.053
0.360 0.440 0.520 0.590 0.670 0.750 0.830 0.910
螺纹尺寸
d
8# 10# 12# 1/4 5/16 3/8 7/16 1/2
d 公称
PP
dk 最大值
最小值
k 参考值
f 参考值
n 最大值
最小值
t 最大值
最小值
α 最大值
最小值
L0 ① 公称
Y ① 螺纹过渡长度(全螺纹) 最大值
b ① 螺纹长度 (长螺钉) 最小值
0.1640 0.1900 0.2160 0.2500 0.3125 0.3750 0.4375 0.5000
18 16 14 14 12 12 10 10
0.312 0.362 0.412 0.477 0.597 0.717 0.760 0.815
0.285 0.333 0.380 0.442 0.556 0.670 0.715 0.765
0.070 0.081 0.092 0.107 0.134 0.161 0.156 0.156
0.052 0.060 0.068 0.079 0.099 0.117 0.122 0.131
0.054 0.060 0.067 0.075 0.084 0.094 0.094 0.106
0.045 0.050 0.056 0.064 0.072 0.081 0.081 0.091
0.078 0.090 0.103 0.119 0.149 0.179 0.184 0.204
0.064 0.074 0.085 0.098 0.124 0.149 0.154 0.169
82° 82° 82° 82° 82° 82° 82° 82°
80° 80° 80° 80° 80° 80° 80° 80°
1-1/4 1-3/8 1-5/8 1-13/16 1-13/16 1-7/8 1-7/8 1-7/8
0.056 0.062 0.071 0.071 0.083 0.083 0.100 0.100
0.980 1.140 1.300 1.500 1.500 1.500 1.500 1.500
①,正常情况下，当螺钉长度小于等于其公称长度L0时应采用全螺纹，过渡螺纹长度应小于等于Y；若螺钉长度大于其公称长度L0可采用半牙型式，但其螺纹长度应不小于b。
替代列表
ASME B 18.6.3T11t - 2013 ASME B 18.6.3H3C+T1A - 2024

长度公差

　　Tapping screws can be made to any length, but they are generally produced in fractional length increments of 1/16 in. for screws up to 1/2 in. long, 1/8 in. for screws over 1/2 in. through 1-1/2 in. long, 1/4 in. for screws over 1-1/2 in. through 3 in. long, and 1/2 in. for screws over 3 in. long.

类型

标称螺钉长度

长度公差

A、AB、BP

≤1

±0.03

＞1

±0.05

B、BF、BT、C、D、F、G、T、TRS

≤3/4

-0.03

＞3/4,≤1-1/2

-0.05

＞1-1/2

-0.06

引用参考

GB /T 3098.5 - 2016
紧固件机械性能 - 自攻螺钉
GB /T 1172 - 1999
黑色金属硬度及强度换算值
GB /T 5267.1 - 2002
镀锌、镀镍、镀镉、复合镀等层镀层盐雾腐蚀的防护性能
GB /T 193 - 2003
普通螺纹（一般用途米制螺纹）- 直径与螺距系列 (ISO 261: 1998, MOD)
GB /T 5280 - 2002
自攻螺钉用螺纹
注：技术数据仅供参考，请以官方原件为准！
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