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Type I Cross Recessed Oval Countersunk Head Tapping Screws - Mofuta oa B le BP Thread Forming [Letlapa la 21]

Eba le khoele e sebetsang hantle ea khoele le ho tiisa ka mokhoa o sireletsehileng ka Mefuta ea I Cross Recessed Oval Countersunk Head Tapping Screws e nang le bokhoni ba ho etsa mofuta oa B le BP, e tsamaellanang le maemo a ASME B 18.6.4 - 1998. Khetha ho tšepahala le ho feto-fetoha ha maemo bakeng sa litlhoko tsa hau tsa kopano.

Mohlala:ASME B 18.6.4

Romela Lipatlisiso

Tlhaloso ea Sehlahisoa

E E Efficient Thread Formation:ASME B 18.6.4 - 1998 e lumellanang le Mofuta oa I Cross Recessed Oval Countersunk Head Tapping Screws ka Mofuta oa B le BP ea ho etsa khoele e khonang ho etsa hore ho be le khoele e sebetsang hantle nakong ea ho kenya. Tšobotsi ena e fokotsa ts'ebetso ea kopano ka ho felisa tlhokahalo ea ho cheka pele.

Secure Fastening:Li na le bokhoni ba ho etsa likhoele tsa Mofuta oa B le BP, li-screws tsena li netefatsa ho tiisa ho sireletsehileng le ho ts'epahala, ho fokotsa kotsi ea ho lokoloha kapa ho hlobola. Li fana ka ho lekana ka thata, ho matlafatsa botšepehi ba likarolo tse kopaneng bakeng sa lisebelisoa tse fapaneng.

Tšebeliso e fapaneng:Li loketse mefuta e mengata ea lisebelisoa, ho kenyeletsoa tšepe, polasetiki le lehong, li-screws tsena li fana ka mekhoa e mengata ea ts'ebeliso e kang ea kaho, ea mapolanka le ea tšepe. Ho lumellana ha bona le lisebelisoa tse fapaneng ho ba etsa khetho e fapaneng bakeng sa merero e fapaneng.

Kaho e Ts'oarellang:E entsoe ka thepa ea boleng bo holimo, li-screws tsena li etselitsoe ho tšoarella le ho hanyetsa ho bola, ho netefatsa ts'ebetso e tšoarellang halelele libakeng tse boima. Kaho ea bona e matla e etsa hore e tšoanelehe bakeng sa lisebelisoa tsa ka hare le tsa ka ntle.

Nominal Diameter
d

d	Boholo ba Lebitso
L	min
d_k	max
d_k	min
k	Ref.
f	Ref.
h	Ref.
M	Ref.
t	Ref.
N	Ref.
Sokete No.
Botebo ba ho kenella	max
Botebo ba ho kenella	min

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1510
1/8	5/32	3/16	7/32	1/4	1/4	5/16	3/8
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
0.035	0.043	0.051	0.059	0.067	0.075	0.083	0.091
0.021	0.025	0.029	0.033	0.037	0.041	0.045	0.049
0.056	0.068	0.080	0.092	0.104	0.116	0.128	0.140
0.068	0.070	0.106	0.118	0.130	0.152	0.172	0.176
0.036	0.039	0.060	0.072	0.086	0.073	0.092	0.098
0.014	0.015	0.018	0.019	0.019	0.028	0.030	0.030
0	0	1	1	1	2	2	2
0.038	0.041	0.062	0.074	0.087	0.074	0.094	0.100
0.020	0.023	0.045	0.057	0.070	0.050	0.069	0.075

Nominal Diameter
d

10#

12#

1/4

5/16

3/8

7/16

1/2

d	Boholo ba Lebitso
L	min
d_k	max
d_k	min
k	Ref.
f	Ref.
h	Ref.
M	Ref.
t	Ref.
N	Ref.
Sokete No.
Botebo ba ho kenella	max
Botebo ba ho kenella	min

0.1640	0.1900	0.2160	0.2500	0.3125	0.3750	0.4375	0.5000
7/16	1/2	9/16	5/8	5/8	5/8	3/4	3/4
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
0.100	0.116	0.132	0.153	0.191	0.230	0.223	0.223
0.052	0.060	0.068	0.079	0.099	0.117	0.122	0.131
0.152	0.176	0.200	0.232	0.290	0.347	0.345	0.354
0.186	0.202	0.264	0.284	0.384	0.404	0.416	0.430
0.107	0.125	0.140	0.160	0.226	0.245	0.257	0.271
0.031	0.033	0.038	0.040	0.065	0.068	0.070	0.071
2	2	3	3	4	4	4	4
0.108	0.126	0.135	0.156	0.218	0.237	0.249	0.263
0.084	0.102	0.111	0.131	0.194	0.213	0.225	0.239

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