DIN Countersunk Head Screws / Brass H62 M1 - M20 Slotted CSK Head Bolt
Brand Name:FLRS or OEM
Certification:ISO9001
Model Number:FLRS-B016
Minimum Order Quantity:1 piece
Delivery Time:8-20days
Payment Terms:T/T， L/C， Western union， paypal
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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
DIN Countersunk Head Screws / Brass H62 M1 - M20 Slotted CSK Head Bolt
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