Cross Recessed Hexagon Head Tapping Screws with Indentation
Designed to transfer torque efficiently and simplify the installation process, these screws are unique in that they can be tightened directly into a variety of materials 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: ST2.9 ~ ST8 | ●Imperial Thread Diameter: #5 ~ 3/8 |
| ●Metric Thread Length: 6 ~ 60 | ●Imperial Thread Length: 1/8 ~ 12 |
Product Description of Cross Recessed Hexagon Head Tapping Screws with Indentation
- Function and use: Combining the high bearing capacity of the hexagonal head with the ease of handling of the cross grooves, this design allows for efficient torque transmission and easy assembly with universal tools.
- Application: It is widely used in the construction, machinery and automotive industries, especially for metal, plastic or wood and other materials without pre-drilling to achieve a firm fastening scenario.
- Needs solved: The use of self-tapping technology can effectively simplify the assembly process, significantly reduce the installation time, while ensuring the robustness and reliability of the connection.
Wanhong Fasteners supply high quality cross slot hexagonal self-tapping screws in various sizes and materials, suitable for a wide range of industrial applications.
Data Sheet of Cross Recessed Hexagon Head Tapping Screws with Indentation
Cross recessed hexagon head tapping screws with indentation Dimensions Chart: Based on GB/T 9456
| (mm) | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST6.3 | ST8 |
| P | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 2.1 |
| a max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 2.1 |
| da max | 3.5 | 4.1 | 4.9 | 5.5 | 7.1 | 9.2 |
| s max | 5 | 5.5 | 7 | 8 | 10 | 13 |
| s min | 4.82 | 5.32 | 6.78 | 7.78 | 9.78 | 12.73 |
| e min | 5.4 | 5.96 | 7.59 | 8.71 | 10.95 | 14.26 |
| k max | 2.3 | 2.6 | 3 | 3.8 | 4.7 | 6 |
| k min | 2 | 2.3 | 2.6 | 3.3 | 4.1 | 5.2 |
| r min | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 |
| No. | 1 | 2 | 2 | 2 | 3 | 3 |
| M | 2.5 | 3.5 | 4 | 4.4 | 6.2 | 7.2 |
| t min | 0.95 | 0.91 | 1.4 | 1.8 | 2.36 | 3.2 |
| t max | 1.32 | 1.43 | 1.9 | 2.33 | 2.86 | 3.86 |
| d max | 2.9 | 3.53 | 4.22 | 4.8 | 6.25 | 8 |
| d min | 2.76 | 3.35 | 4.04 | 4.62 | 6.03 | 7.78 |
| d1 max | 2.18 | 2.64 | 3.1 | 3.58 | 4.88 | 6.2 |
| d1 min | 2.08 | 2.51 | 2.95 | 3.43 | 4.7 | 5.99 |
Cross recessed hexagon head tapping screws with indentation Dimensions Chart: Based on ASME/ANSI B18.6.3-Table30
| (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 |
| M | 0.105 | 0.148 | 0.148 | 0.168 | 0.178 | 0.247 | 0.277 | 0.359 | 0.387 |
| 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 | 0.21 | 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 |
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