DIN Countersunk Head Screws / Brass H62 M1 - M20 Slotted CSK Head Bolt
DIN Standard Slotted Countersunk Head Screws / Brass H62 M1-M20 Slotted 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 ...
Slotted Countersunk Head Screws
,Countersunk Head Slotted Head Screws
,M20 Slotted Head Bolt
DIN Standard Slotted Countersunk Head Screws / Brass H62 M1-M20 Slotted 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.
| 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 |
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 |
Material:
Brass H62
Chemical composition:
Cu--60.5~63.5%
Fe - ≤0.15%
Pb--≤0.08%
Sb--≤0.005%
Bi--≤0.002%
P--≤0.01%
Zn--balance
Total impurities: ≤0.5%
Mechanical properties:
Tensile strength: (σb/MPa)410-630
Elongation: (δ10/%)≥10
Vickers hardness: (HV)105-175 (thickness ≥0.3)
Note: Thickness 0.3-10
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