M1-M20 Slotted countersunk head screws / Ti Gr2 DIN 963 CSK Head
Bolt
Countersunk head screw, also called countersunk head screw, also
known as flat machine screw, is a kind of construction part. The
head is a 90-degree cone, similar to common wood screws. The head
has tool tightening grooves, such as a zigzag, cross, inner
hexagon, plum blossom, pentagon, etc.
Screws are all connectors used to connect two objects. Generally,
the head of the screw will protrude above the surface of the object
to be connected, so that the surface will lose its smoothness.
Countersunk head screws can sink under the surface to make the
surface flat, and hard objects need to drill countersunk holes in
the corresponding position of the countersunk head. In short, the
countersunk head is the head of the screw that can keep the surface
flat after installation.
| Standard | ANSI/ASME, JIS, EN, DIN, BS,GB, SH, HG, IFI, ISO and etc. |
| Size | Standard & non-standard, support customized |
| Material | Carbon Steel, Stainless Steel and etc. |
| Grade | SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9,
12.9 and etc. |
| Thread | UNC,UNF,BSW |
| Finish | Plain,ZincPlated(Clear/Blue/Yellow/Black),Black,HDPE,Fluorocarbon
Coating, XYLAN |
| Packing | Bulk in cartons on wood pallet or according to customer special
demand. |
| Application | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind
Energy; Mechanical Machine; Automobile |
Driver:
Drawing:
Size:
| d | M1 | M1.2 | M1.4 | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 |
| P | | 0.25 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 |
| a | Max | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 |
| dk | Max | 1.9 | 2.3 | 2.6 | 3 | 3.8 | 4.7 | 5.6 | 6.5 | 7.5 |
| Min | 1.76 | 2.06 | 2.46 | 2.86 | 3.5 | 4.4 | 5.3 | 6.14 | 7.14 |
| k | Max | 0.6 | 0.72 | 0.84 | 0.96 | 1.2 | 1.5 | 1.65 | 1.93 | 2.2 |
| n | Max | 0.45 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.2 |
| Min | 0.31 | 0.36 | 0.36 | 0.46 | 0.56 | 0.66 | 0.86 | 0.86 | 1.06 |
| r | Max | 0.1 | 0.12 | 0.14 | 0.16 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 |
| t | Max | 0.3 | 0.35 | 0.4 | 0.45 | 0.6 | 0.7 | 0.85 | 1 | 1.1 |
| Min | 0.2 | 0.25 | 0.28 | 0.32 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 |
| x | Max | - | - | - | 0.9 | 1 | 1.1 | 1.25 | 1.5 | 1.75 |
| d | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 |
| P | | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 |
| a | Max | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 4 | 5 | 5 |
| dk | Max | 9.2 | 11 | 14.5 | 18 | 22 | 25 | 29 | 33 | 36 |
| Min | 8.84 | 10.57 | 14.07 | 17.57 | 21.48 | 24.48 | 28.48 | 32.38 | 35.38 |
| k | Max | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| n | Max | 1.51 | 1.91 | 2.31 | 2.81 | 3.31 | 3.31 | 4.37 | 4.37 | 5.37 |
| Min | 1.26 | 1.66 | 2.06 | 2.56 | 3.06 | 3.06 | 4.07 | 4.07 | 5.07 |
| r | Max | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.4 | 1.6 | 1.8 | 2 |
| t | Max | 1.3 | 1.6 | 2.1 | 2.6 | 3 | 3.5 | 4 | 4.5 | 5 |
| Min | 1 | 1.2 | 1.6 | 2 | 2.4 | 2.8 | 3.2 | 3.6 | 4 |
| x | Max | 2 | 2.5 | 3.2 | 3.8 | 4.4 | 5 | 5 | 6.3 | 6.3 |
Packing:
Packing Details :Construction fastener bags+cartons+pallets,or
according to customer ' s requirement,
1. We have several sizes of packing dimensions, can be 25kg per
carton;
2. For large orders, we can design specific sizes of boxes and
cartons.
3. Normal Packing: 1000pcs/500pcs/250pcs per plastic bag,bags into
cartons,then on pallet.
4. Can provide special packing as clients request;
Material:
Titanium alloy has high strength and low density, good mechanical
properties, good toughness and corrosion resistance. In addition,
the process performance of titanium alloy is poor, cutting is
difficult, and it is very easy to absorb impurities such as
hydrogen, oxygen, nitrogen and carbon during hot processing. There
is also poor wear resistance and complex production process. The
most widely used titanium alloys are Ti-6Al-4V (TC4), Ti-5Al-2.5Sn
(TA7) and industrial pure titanium (TA1, TA2 and TA3).
Chemical composition: balance of titanium (Ti), nitrogen (N) ≤
0.03, carbon (C) ≤ 0.08, hydrogen (H) ≤ 0.013, iron (Fe) ≤ 0.20,
oxygen (O) ≤ 0.15
Mechanical properties: Tensile strength: 340Mpa≤σb≤410Mpa, yield
strength σb≥165Mpa: Elongation: δ≥27%
