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Type I cross recessed undercut oval countersunk head tapping screws - Type B and BP Thread Forming [Table 25]

Experience efficient thread formation and secure fastening with Type I cross recessed undercut 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 undercut oval countersunk head tapping screws with Type B and BP thread forming capability ensure efficient thread formation during installation. This feature simplifies the assembly process by eliminating the need for pre-drilling.

Secure Fastening: These screws are equipped with Type B and BP thread forming capability, ensuring secure and reliable fastening. They provide a tight grip, reducing the risk of loosening or stripping, thus enhancing the integrity of assembled components in various applications.

Versatile Application: Suitable for use with a wide range of materials, including metal, plastic, and wood, these tapping screws offer versatility across different industries. Their compatibility with various materials makes them ideal for construction, woodworking, and metalworking projects.

Durable Construction: Crafted from high-quality materials, these screws are built for durability and corrosion resistance, ensuring long-term performance in challenging 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	max
h	min
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
0.025	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
0.046	0.056	0.065	0.075	0.084	0.094	0.104	0.113
0.033	0.042	0.050	0.059	0.067	0.076	0.084	0.093
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	0.03	0.03
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	max
h	min
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
0.070	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
0.123	0.142	0.161	0.186	0.232	0.278	0.279	0.288
0.101	0.118	0.135	0.158	0.198	0.239	0.239	0.244
0.186	0.202	0.264	0.284	0.374	0.394	0.404	0.416
0.107	0.125	0.140	0.160	0.214	0.233	0.245	0.257
0.031	0.033	0.038	0.04	0.064	0.066	0.068	0.07
2	2	3	3	4	4	4	4
0.108	0.126	0.135	0.156	0.206	0.225	0.237	0.249
0.084	0.102	0.111	0.131	0.182	0.201	0.213	0.225

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