phillips concave hex collar self tapping screws -1

phillips concave hex collar self tapping screws -2

Phillips Concave Hex Collar Self Tapping Screws

These self-tapping screws feature a cross grooved hex head design designed to optimize torque transfer and load distribution without prior drilling.

Product Technical Parameters

●Material: Carbon Steel and Stainless Steel
●Surface Treatment: Galvanized, Nickel Plated, Black Oxide, Hot Dip Galvanizing, Dacromet
●Metric Strength Grades: 4.8, 8.8, 10.9	●Imperial Strength Grades: 2, 5, 8
●Metric Thread Diameter: ST3~ ST10	●Imperial Thread Diameter: #5 ~ 3/8
●Metric Thread Length: 6 ~ 100	●Imperial Thread Length: 1/8 ~ 12

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Product Description of Phillips Concave Hex Collar Self Tapping Screws

Function and use: Combined with the cross slot drive and hexagonal flange head design, these self-tapping screws are not only easy to install, but also significantly improve the fastening effect, suitable for self-forming threads on a variety of materials such as metal and plastic.
Application: It is widely used in automotive, mechanical and construction fields, especially suitable for fastening requirements requiring strong load bearing capacity and seismic performance.
Needs solved: The flange head design is designed to tighten directly without gaskets, thus evenly distributing the load and significantly saving assembly time, while ensuring a stable and safe fastening solution.

Wanhong Fasteners supply high quality phillips concave hex collar self tapping screws in various sizes and materials, suitable for a wide range of industrial applications.

Data Sheet of Phillips Concave Hex Collar Self Tapping Screws

Phillips concave hex collar self tapping screws Dimensions Chart: Based on ASME/ANSI B18.6.3-Table 33

(inch)	#5	#6	#7	#8	#10	#12	1/4	5/16	3/8
P	20	20	19	18	16	14	14	12	12
s max	0.188	0.25	0.25	0.25	0.312	0.312	0.375	0.5	0.562
s min	0.181	0.244	0.244	0.244	0.305	0.305	0.367	0.489	0.551
e min	0.202	0.272	0.272	0.272	0.34	0.34	0.409	0.545	0.614
k max	0.07	0.093	0.093	0.11	0.12	0.155	0.19	0.23	0.295
k min	0.058	0.08	0.08	0.096	0.105	0.139	0.172	0.208	0.27
dc max	0.26	0.328	0.328	0.348	0.414	0.432	0.52	0.676	0.78
dc min	0.24	0.302	0.302	0.322	0.384	0.398	0.48	0.624	0.72
h max	0.025	0.025	0.029	0.031	0.031	0.039	0.05	0.055	0.063
h min	0.015	0.015	0.017	0.019	0.019	0.022	0.03	0.035	0.037
M	0.105	0.148	0.148	0.168	0.178	0.247	0.277	0.358	0.386
No.	1	2	2	2	2	3	3	4	4
t max	0.076	0.089	0.089	0.115	0.127	0.152	0.186	0.234	0.267
t min	0.058	0.064	0.064	0.09	0.102	0.127	0.161	0.219	0.243
d max	0.13	0.139	0.154	0.166	0.189	0.215	0.246	0.315	0.38
d min	0.123	0.132	0.147	0.159	0.182	0.208	0.237	0.306	0.371
d1 max	0.094	0.104	0.115	0.122	0.141	0.164	0.192	0.244	0.309
d1 min	0.09	0.099	0.109	0.116	0.135	0.157	0.185	0.236	0.299