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梅花槽半沉頭 AB ABR自攻螺釘 ASME B 18.6.3 (H2B-VI+T1A) - 2024

選擇規格尺寸點擊↓

10#

12#

1/4

5/16

3/8

7/16

1/2

ASME B 18.6.3 (H2B-VI+T1A) - 2024 梅花槽半沉頭 AB ABR自攻螺釘

尺寸單位: inch

美标ASME B18.6.3 (H2B-VI+T1A) - 2024 ASME1 梅花槽半沉頭 AB ABR自攻螺釘

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公差

螺紋尺寸
d

10#

12#

1/4

5/16

3/8

7/16

1/2

d	公稱
PP
槽号
M	參考
P	最大值
	最小值
d_k	最大值
	最小值
k	參考
f	參考
α	最大值
	最小值
L₀ ^④	公稱
Y ^④	螺紋過渡長度(全螺紋)	最大值
b ^④	螺紋長度 (長螺釘)	最小值

0.0860	0.0990	0.1120	0.1250	0.1380	0.1510	0.1640	0.1900	0.2160	0.2500	0.3125	0.3750	0.4375	0.5000
32	28	24	20	20	19	18	16	14	14	12	12	10	10
T6	T8	T8	T10	T15	T15	T20	T25	T27	T30	T40	T45	T50	T50
0.069	0.094	0.094	0.111	0.132	0.132	0.155	0.178	0.200	0.221	0.266	0.312	0.352	0.352
0.022	0.025	0.033	0.055	0.055	0.060	0.071	0.090	0.090	0.105	0.125	0.155	0.150	0.169
0.017	0.022	0..028	0.045	0.045	0.050	0.055	0.070	0.070	0.085	0.105	0.130	0.130	0.150
0.162	0.187	0.212	0.237	0.262	0.287	0.312	0.362	0.412	0.477	0.597	0.717	0.760	0.815
0.144	0.167	0.191	0.215	0.238	0.262	0.285	0.333	0.380	0.442	0.556	0.670	0.715	0.765
0.051	0.059	0.067	0.075	0.083	0.091	0.100	0.116	0.132	0.153	0.191	0.230	0.223	0.223
0.029	0.033	0.037	0.041	0.045	0.049	0.052	0.060	0.068	0.079	0.099	0.117	0.122	0.131
82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°
80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°
5/8	3/4	13/16	15/16	1	1-1/8	1-1/4	1-3/8	1-5/8	1-13/16	1-13/16	1-7/8	1-7/8	1-7/8
0.031	0.036	0.042	0.050	0.050	0.053	0.056	0.062	0.071	0.071	0.083	0.083	0.100	0.100
0.520	0.590	0.670	0.750	0.830	0.910	0.980	1.140	1.300	1.500	1.500	1.500	1.500	1.500

①,若以小數規定公稱直徑，應省略小數前和小數點後第四位的零。
②,螺釘末端釘尖上不允許因螺紋輾壓而形成的虛尖，允許略帶圓弧或圓鈍形末端。
③,小于等于8#的螺釘，螺紋牙頂平面寬度不應超過0.004in，大于8#的應不超過0.006in。
④,正常情況下，當螺釘長度小于等于其公稱長度L0時應采用全螺紋，過渡螺紋長度應小于等于Y；若螺釘長度大于其公稱長度L0可采用半牙型式，但其螺紋長度應不小于b。

替代列表

ASME 18.6.3T8-VI+T40 - 2013 ASME B 18.6.3H2B-VI+T1A - 2024

長度公差

　　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.

類型	标稱螺釘長度	長度公差
A、AB、BP	≤1	±0.03
A、AB、BP	＞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

引用參考

鍍鋅、鍍鎳、鍍镉、複合鍍等層鍍層鹽霧腐蝕的防護性能

GB /T 193 - 2003

普通螺紋（一般用途米制螺紋）- 直徑與螺距系列 (ISO 261: 1998, MOD)

GB /T 5280 - 2002

自攻螺釘用螺紋

注：技術數據僅供參考，請以官方原件為準！

類似标準及供貨信息

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