DIN125A Flat Washer,M5,Grade 4.8,Carbon Steel,Round head,Zinc
Plated
Product Description:
First Standard flat washer, smooth surface, galvanizing process,
moisture-proof and anti-corrosion, that is to say, not easy to
rust.
Surface treatment is smooth, burr-free, excellent workmanship,
thickening treatment, long service life.
For function:
DIN125A Flat Washer, Increase the contact area flat pad, spring pad
is used to prevent loose when spring pad to pay attention to the
direction of the opening, or else from the anti-loose little
effect.
Flat washers are usually thin pieces of various shapes, used to
reduce friction, prevent leakage, isolate, prevent loosening or
disperse pressure. Many materials and structures have such
components for performing various similar functions. Due to the
material and process limitations of threaded fasteners, the
supporting surfaces of bolts and other fasteners are not large, so
gaskets are used to reduce the compressive stress of the bearing
surface to protect the surface of the joints.
Flat pad can protect the surface of the contact surface elastic pad
lock is mainly to make there is always a preload between fasteners
within its elastic deformation range
Specification:
| Details |
| Name | Plain washers |
| Materials | Carbon Steel:Q195,35K,45K |
| Process Method | Cold forging, hot forging ,Open-die |
| Size | Diameter M3-M39 |
| Standard | DIN125 |
| Surface | Zinc Plated, Plain |
| Packing | Small boxes or cartons in bulk |
| size | Φ3.2 | Φ3.7 | Φ4.3 | Φ5.3 | Φ6.4 | Φ7.4 | Φ8.4 | Φ10.5 | Φ13 | Φ15 |
| M | | M3 | M3.5 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | M14 |
| d | Min = nominal | 3.2 | 3.7 | 4.3 | 5.3 | 6.4 | 7.4 | 8.4 | 10.5 | 13 | 15 |
| max | 3.38 | 3.88 | 4.48 | 5.48 | 6.62 | 7.62 | 8.62 | 10.77 | 13.27 | 15.27 |
| dc | Max = nominal | 7 | 8 | 9 | 10 | 12 | 14 | 16 | 20 | 24 | 28 |
| min | 6.64 | 7.64 | 8.64 | 9.64 | 11.57 | 13.57 | 15.57 | 19.48 | 23.48 | 27.48 |
| max | 0.55 | 0.55 | 0.9 | 1.1 | 1.8 | 1.8 | 1.8 | 2.2 | 2.7 | 2.7 |
| min | 0.45 | 0.45 | 0.7 | 0.9 | 1.4 | 1.4 | 1.4 | 1.8 | 2.3 | 2.3 |
| Kgs/mpcs | 0.119 | 0.155 | 0.308 | 0.443 | 1.02 | 1.39 | 1.83 | 3.57 | 6.27 | 8.62 |
| size | Φ17 | Φ19 | Φ21 | Φ23 | Φ25 | Φ27 | Φ28 | Φ29 | Φ31 | Φ33 | Φ34 | Φ36 | Φ37 | Φ39 | Φ40 | Φ41 |
| M | | M16 | M18 | M20 | M22 | M24 | M26 | M27 | M28 | M30 | M32 | M33 | M35 | M36 | M38 | M39 | M40 |
| d | Mix = nominal | 17 | 19 | 21 | 23 | 25 | 27 | 28 | 29 | 31 | 33 | 34 | 36 | 37 | 39 | 40 | 41 |
| max | 17.27 | 19.33 | 21.33 | 23.33 | 25.33 | 27.33 | 28.33 | 29.33 | 31.39 | 33.62 | 34.62 | 36.62 | 37.62 | 39.62 | 40.62 | 41.62 |
| dc | Max = nominal | 30 | 34 | 37 | 39 | 44 | 50 | 50 | 50 | 56 | 60 | 60 | 66 | 66 | 72 | 72 | 72 |
| mix | 29.48 | 33.38 | 36.38 | 38.38 | 43.38 | 49.38 | 49.38 | 49.38 | 55.26 | 58.8 | 58.8 | 64.8 | 64.8 | 70.8 | 70.8 | 70.8 |
| max | 3.3 | 3.3 | 3.3 | 3.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 5.6 | 5.6 | 5.6 | 5.6 | 6.6 | 6.6 | 6.6 |
| mix | 2.7 | 2.7 | 2.7 | 2.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 4.4 | 4.4 | 4.4 | 4.4 | 5.4 | 5.4 | 5.4 |
| Kgs/mpcs | 11.3 | 14.7 | 17.2 | 18.3 | 32.3 | 43.7 | 42.3 | 40.9 | 53.6 | 77.4 | 75.3 | 94.3 | 92.1 | 136 | 133 | 130 |
Application:
1. It is used to increase the contact area between the screw and
the object to be fixed.
2. When the screw is removed, the washer avoids damage to the
surface of the fixed object.
3. Motorcycle/Building/Machinery/Automobile/Home Decoration, etc.
