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Type I Cross Recessed Oval Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 21]

Experience efficient thread formation and secure fastening with Type I Cross Recessed Oval Countersunk Head Tapping Screws featuring Type B and BP thread forming capability, compliant with ASME B 18.6.4 - 1998 standards. Choose reliability and versatility for your assembly needs.

Model:ASME B 18.6.4

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Product Description

Efficient Thread Formation: ASME B 18.6.4 - 1998 compliant Type I Cross Recessed Oval Countersunk Head Tapping Screws with Type B and BP thread forming capability enable efficient thread formation during installation. This feature streamlines the assembly process by eliminating the need for pre-drilling.

Secure Fastening: Equipped with Type B and BP thread forming capability, these screws ensure secure and reliable fastening, minimizing the risk of loosening or stripping. They provide a tight fit, enhancing the integrity of the assembled components for various applications.

Versatile Application: Suitable for a wide range of materials, including metal, plastic, and wood, these tapping screws offer versatility in applications such as construction, woodworking, and metalworking. Their compatibility with different materials makes them a versatile choice for various projects.

Durable Construction: Crafted from high-quality materials, these screws are designed for durability and resistance to corrosion, ensuring long-lasting performance in demanding environments. Their robust construction makes them suitable for both indoor and outdoor applications.

Nominal Diameter
d

d	Nominal Size
L	min
d_k	max
d_k	min
k	Ref.
f	Ref.
h	Ref.
M	Ref.
t	Ref.
N	Ref.
Socket No.
Penetration depth	max
Penetration depth	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	Nominal Size
L	min
d_k	max
d_k	min
k	Ref.
f	Ref.
h	Ref.
M	Ref.
t	Ref.
N	Ref.
Socket No.
Penetration depth	max
Penetration depth	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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