Titanium Bolts DIN7991 – Countersunk Head Cap Screws
| DIN 7991 - 1986 Hexagon socket countersunk head cap screws | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread size d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | |
| p | Pitch | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 |
| a | Metric | 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＜L≤200 | / | / | / | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | |
| L＞200 | / | / | / | / | / | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | |
| dk | Max=Metric | 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=Metric | 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 | Max | 1.7 | 2.3 | 2.8 | 3.3 | 4.4 | 5.5 | 6.5 | 7 | 7.5 | 8 | 8.5 | 13.1 | 14 |
| s | Metric | 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 | |
Standard and Size
- Metric Titanium Bolts & Screws Standard: DIN, JIS, ISO, BS
- Inch Titanium Bolts & Screws Standard: ANSI/ASME B18.3, ANSI/ASME B18.2.1
- The Popular Inch Bolts & Screws size : 1/4” ,3/8”, 7/6” ,3/4” 7/8” 5/8”.
Material and Standard
- Material: Gr1, Gr2, Gr5，Gr7, Gr9, Gr12
- Standard: AMS4928/4967, ASTM 348 ,Special demand(Tensile stregnth more than1100Mpa)
Application
XOT Metals manufacture and stock Anti-corrosion Bolts & Screws, especially in Titanium and Its Alloys. Most Hex and Socket Bolts used in Oil & Gas Industry and Reaction valve. Titanium Flange Bolts used in Bicycle, Motorcycles and Automobile component. With special heat treatment, Titanium Bolts can used in Aircraft, warship and Communication satellite
In order meet 7 days shipment demand, we stock 20 tons ofTitanium GR2 and Gr5 M3,M4,M5,M6 ,M8 ,M10,M12 bolts in big and Inch titanium bolts as ASME specification.
Advantage
- Aerospace Grade Titanium round bars as raw material
- Fast shipment: Within 7 days
- 100% Quality control throughout traceability
- 15 years’ Experience in manufacturing Titanium Bolts & Screws
- Technical Service: Your Titanium Expert with One Stop Solution
Customized
Non-standard and special size is available in Titanium ,Molybdenum,Tungsten,Niobium according to your drawing or requirement, for customization and tailor-made requirement, please click here for details. For Tantalum Bolts and Nbti47 fasteners, please Contact us for more details.
