Shenzhen Feitai Hardware Products Co., Ltd.
Shenzhen Feitai Hardware Products Co., Ltd.
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304 Stainless Steel Countersunk Screws Manufacturer KM Electronic Screws M3/M4 Stainless Steel Cross Flat Head Screws
304 Stainless Steel Countersunk Screws Manufacturer KM Electronic Screws M3/M4 Stainless Steel Cross Flat Head Screws
Standard GB/T 819.1
Material 304 stainless steel
Use rust and corrosion resistant
Surface treatment to wash and brighten
Strength class A2-70
Head shape heavy head
Applicable industries Communication equipment manufacturing,
3C electronics manufacturing, automobile manufacturing,
new energy battery manufacturing, electronic device manufacturing,
medical device manufacturing
Product grade A
| Thread specification | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | |
| Thread diameter d | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 8 | 10 | |
| screw pitch | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1.0 | 1.25 | 1.5 | |
| Head diameter dk | min | 3.4 | 4.3 | 5.2 | 6.00 | 7.00 | 8.7 | 10.4 | 13.9 | 17.78 |
| max | 3.7 | 4.6 | 5.5 | 6.4 | 7.3 | 9.0 | 10.9 | 14.4 | 18.3 |
| Head thickness k | max | 1.2 | 1.5 | 1.65 | 2.35 | 2.7 | 2.7 | 3.3 | 4.65 | 5.00 |
| Cross groove | 1# | 1# | 2# | 2# | 2# | 2# | 3# | 3# | 4# | |
| Depth of cross groove t | min | 0.65 | 1.05 | 0.91 | 1.4 | 1.79 | 2.38 | 2.7 | 4.36 | 5.1 |
| max | 1.01 | 1.42 | 1.43 | 1.93 | 2.33 | 2.93 | 3.26 | 4.96 | 5.7 |