| Customization: | Available |
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| Material: | Stainless Steel |
| Type: | Countersunk Head |
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stainless steel DIN7991 Hex Socket countersunk screws are a low-profile, high-strength fastener that is used in applications where an aesthetic appearance or flush-mounted fitting is required. These screws are made of high-quality stainless steel, which offers high corrosion resistance and strength.
The DIN7991 standard specifies the dimensions and tolerances of these screws, including the thread diameter, thread pitch, shank length, head height, head diameter, and overall length. The countersunk head allows the screw to be flush-mounted to the surface, making the fastener less obtrusive and more visually appealing.
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Material |
Stainless steel (SS304; SS316; SS316L; A2-70; A4-80) |
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Standards |
DIN, BSW, JIS, UNC, UNF, ASME and ANSI, Non-standard, Customized Drawing. |
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Thread |
Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF. |
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Sizes |
M3-M42, 1/4 to 2 inches, length: 5mm-300mm |
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Packing |
Bagor Carton or Others |
| M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | ||
| P | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | |
| α | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 60° | 60° | |
| b | L≤125mm | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 |
| 125 | / | / | / | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | |
| L>200 | / | / | / | / | / | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73min | |
| dk | max | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 27 | 30 | 33 | 36 | 36 | 39 |
| min | 5.7 | 7.64 | 9.64 | 11.57 | 15.57 | 19.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 35.38 | 38.38 | |
| ds | max | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| min | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | |
| k | min | 1.7 | 2.3 | 2.8 | 3.3 | 4.4 | 5.5 | 6.5 | 7 | 7.5 | 8 | 8.5 | 13.1 | 14 |
| s | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 10 | 12 | 12 | 14 | 14 | |
| min | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 | 14.032 | 14.032 | |
| max | 2.1 | 2.6 | 3.1 | 4.12 | 5.14 | 6.14 | 8.175 | 10.175 | 10.175 | 12.212 | 12.212 | 14.212 | 14.212 | |
| t | max | 1.2 | 1.8 | 2.3 | 2.5 | 3.5 | 4.4 | 4.6 | 4.8 | 5.3 | 5.5 | 5.9 | 8.8 | 10.3 |
| min | 0.95 | 1.55 | 2.05 | 2.25 | 3.2 | 4.1 | 4.3 | 4.5 | 5 | 5.2 | 5.6 | 8.44 | 9.87 | |
1.Q:Please send the catalog ?
A: If you need a catalog, please leave us your email and we will send you a catalog within 2 business hours.
2.Q:Can I get some sample?
A: Yes, we think that sample orders are a great way to start working together. All our samples are free of charge, but we can only send samples weighing less than 1 kilogram. You only need to pay for express delivery.
3.Q: Could you accept use my own LOGO or design on goods?
A: Yes, no problem .
4.Q: What is the delivery time?
A: For samples it takes 4 days . For orders it depends on your order quantity Our factory produces 200 tons of standard fasteners a month .
5.Q:What is your payment ?
A: Our payment is 30% T/T and 70 % balance before shipping we also can do L/C D/P about more details we can talk in email.
6.Q: Can I trust you?
A: Sure .we are the suppliers in "made-in-china" they have very strictly and carefully certification system to sure we are a real manufacturing company.
7.Q: May I visit your factory?
A:sure .we welcome You to visit our factory anytime. before come connect us and let us know you schedule is better that we can pick up you from the airport or train station .
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