Slotted Countersunk Flat Head Screws
The screw is a combination of slotted drive and countersunk design, and can be installed flush with the substrate surface, especially suitable for applications where a smooth appearance is desired.
Product Technical Parameters
| ●Material: Carbon Steel and Stainless Steel | |
| ●Surface Treatment: Galvanized, Nickel Plated, Black Oxide | |
| ●Metric Strength Grades: 4.8, 8.8 | ●Imperial Strength Grades: 2, 5 |
| ●Metric Thread Diameter: M3 ~ M10 | ●Imperial Thread Diameter: #5 ~ 1/2 |
| ●Metric Thread Length: 5 ~ 200
|
●Imperial Thread Length: 3/16 ~ 1-1/2
|
Product Description of Slotted Countersunk Flat Head Screws
- Function and use: The main goal of the slotted countersunk screw design is to make it flush with the substrate surface after installation to achieve a smooth appearance and no protruding installation effect. The slotted drivers can be easily installed by using a flat-head screwdriver.
- Applications: Widely used in areas requiring smooth surfaces, including but not limited to woodworking, furniture assembly, metal processing, such as cabinet making, door installation, lighting production and decorative hardware processing.
- Needs solved: Designed to provide a safe and aesthetically pleasing non-protruding head fastening solution to enhance safety and avoid interference with other components.
Wanhong Fasteners offers high performance slotted countersunk flat head screws in a wide range of sizes and materials designed for a wide range of industrial and construction applications.
Data Sheet of Slotted Countersunk Flat Head Screws
Slotted countersunk flat head screws Dimensions Chart: Based on ISO 2009
| (mm) | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 |
| P | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| dk max | 5.5 | 7.3 | 8.4 | 9.3 | 11.3 | 15.8 | 18.3 |
| dk min | 5.2 | 6.94 | 8.04 | 8.94 | 10.87 | 15.37 | 17.78 |
| k max | 1.65 | 2.35 | 2.7 | 2.7 | 3.3 | 4.65 | 5 |
| n max | 1 | 1.2 | 1.51 | 1.51 | 1.91 | 2.31 | 2.81 |
| n min | 0.86 | 1.06 | 1.26 | 1.26 | 1.66 | 2.06 | 2.56 |
| t max | 0.85 | 1.2 | 1.3 | 1.4 | 1.6 | 2.3 | 2.6 |
| t min | 0.6 | 0.9 | 1 | 1.1 | 1.2 | 1.8 | 2 |
Equivalent Standards: GB /T 68 |DIN EN ISO 2009 | NF E 25-123 | DIN 963
Some of the standards listed above may be considered approximately equivalent. If there are differences in dimensions, please adhere to the original standard
Slotted countersunk flat head screws Dimensions Chart: Based on ASME/ANSI B18.6.3-Table 1
| (inch) | #5 | #6 | #8 | #10 | #12 | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 |
| P | 40|44 | 32|40 | 32|36 | 24|32 | 24|28|32 | 20|28|32 | 18|24|32 | 16|24|32 | 14|20|28 | 13|20|28 |
| dk max | 0.237 | 0.262 | 0.312 | 0.362 | 0.412 | 0.477 | 0.597 | 0.815 | 0.76 | 0.717 |
| dk min | 0.215 | 0.238 | 0.285 | 0.333 | 0.38 | 0.442 | 0.556 | 0.765 | 0.715 | 0.67 |
| k | 0.075 | 0.083 | 0.1 | 0.116 | 0.132 | 0.153 | 0.191 | 0.223 | 0.223 | 0.23 |
| n max | 0.043 | 0.048 | 0.054 | 0.06 | 0.067 | 0.075 | 0.084 | 0.106 | 0.094 | 0.094 |
| n min | 0.035 | 0.039 | 0.045 | 0.05 | 0.056 | 0.064 | 0.072 | 0.091 | 0.081 | 0.081 |
| t max | 0.034 | 0.038 | 0.045 | 0.053 | 0.06 | 0.07 | 0.088 | 0.103 | 0.103 | 0.106 |
| t min | 0.022 | 0.024 | 0.029 | 0.034 | 0.039 | 0.046 | 0.058 | 0.065 | 0.066 | 0.07 |
Get A Free Quote Now !
Get durable, high-quality fasteners for your specific needs. Submit an inquiry to receive a customized quote!
