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The 304 Cross Recessed Screw with Washer is an essential fastening tool, ideal for securing components with added reliability and strength. Made from 304 stainless steel, this screw is exceptionally resistant to corrosion and rust, making it suitable for a wide range of applications, including outdoor environments and moisture-prone areas. The integrated washer provides increased surface area, distributing the load more evenly and preventing damage to the material being fastened. This design also ensures a tighter seal, reducing the likelihood of loosening under vibration. Featuring a cross recessed head, it allows for more precise and efficient driving, making installation easier and ensuring a secure fit for long-lasting performance.
Thread Size (d) | |||
P | Pitch | ||
a | max | ||
da | max | ||
dk | max=nominal size | ||
min | |||
k | max=nominal size | ||
min | |||
c | max | ||
min | |||
r | min | ||
r1 | ≈ | ||
x | max | ||
Socket No. | |||
M1 | Form H | Ref. | |
Penetration depth | Form H | min | |
Penetration depth | max | ||
M2 | Form Z | Ref. | |
Penetration depth | Form Z | min | |
Penetration depth | max | ||
Weight of per 1000 steel products(≈kg) | |||
Length of Thread b | min |
M3 | (M3.5) | M4 | M5 | M6 | M8 |
0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 |
1 | 1.2 | 1.4 | 1.6 | 2 | 2.5 |
3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 9.2 |
7.5 | 9 | 10 | 11.5 | 14.5 | 19 |
6.92 | 8.42 | 9.42 | 10.8 | 13.8 | 18.16 |
2.35 | 2.6 | 3.05 | 3.55 | 4.55 | 5.9 |
2.1 | 2.35 | 2.75 | 3.25 | 4.25 | 5.6 |
0.8 | 0.9 | 1.1 | 1.35 | 1.8 | 2.2 |
0.6 | 0.7 | 0.9 | 1.05 | 1.4 | 1.8 |
0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 |
3.8 | 4.6 | 5.8 | 6.6 | 8.2 | 11 |
1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 |
1 | 2 | 2 | 2 | 3 | 4 |
3 | 4.2 | 4.6 | 5 | 7.1 | 9 |
1.35 | 1.4 | 1.8 | 2.26 | 3 | 4.18 |
1.8 | 2.03 | 2.46 | 2.87 | 3.66 | 4.68 |
2.9 | 3.9 | 4.3 | 4.7 | 6.7 | 8.8 |
1.58 | 1.47 | 1.88 | 2.28 | 3.02 | 4.06 |
1.83 | 1.93 | 2.34 | 2.74 | 3.48 | 4.52 |
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