DIN 436 Square Washer
FLOK supplies DIN 436 square washers for timber structures, made of carbon steel, stainless steel, brass and copper, in various sizes.
DIN 436 covers square-shaped washers designed for connecting timber structures as part of threaded fasteners. The product protects the surfaces of the joined elements from crushing, adds extra strength to the joint, and prevents it from self-loosening.
Carbon and stainless steel alloys are used for manufacturing; brass and copper are used in certain cases. The size range allows selecting a washer to match the metric thread of a bolt, screw, stud or nut.
Materials and characteristics of the DIN 436 square washer
The washer must withstand loads similar to those placed on the main fastener. Therefore, standards impose strict requirements on the materials used. Most of the product range is manufactured from alloyed steels in plain form, as well as with zinc plating applied by electroplating or hot-dip method.
The next group of hardware is manufactured from austenitic alloys. The most popular are chromium-nickel steel grades A2 and A4, which contain added molybdenum, giving the material resistance to acids, alkalis and seawater. Stainless washers do not require additional corrosion protection. In special cases, when the fastening joint needs not only strength but also decorative appeal, products made of brass or copper are used.
The DIN 436 square washer performs its function properly only when correctly selected. For this, it is necessary to take into account its geometric parameters, its ability to withstand the specified loads, and the operating conditions. When these conditions are met, the joint turns out strong, reliable and durable. This hardware is most often used in timber construction, as well as for creating landscape design decor items. Its use in other industrial and manufacturing fields is less common.
FLOK supplies DIN 436 washers in any set and quantity. The range is in stock.
| d | d | a | b |
|---|---|---|---|
| M8 | 9.0 | 30 | 3 |
| M10 | 11.0 | 30 | 3 |
| M12 | 14.0 | 40 | 4 |
| M16 | 17.5 | 50 | 5 |
| M20 | 22.0 | 60 | 5 |
| d* | d₁ | a | h | |
|---|---|---|---|---|
| M10 | 3/8” | 11 | 30 | 3 |
| M12 | 7/16” | 13.5 | 40 | 4 |
| 1/2” | 13.5 | 40 | 4 | |
| M16 | 5/8” | 17.5 | 50 | 5 |
| M20 | 3/4” | 22 | 60 | 5 |
| M22 | 7/8” | 24 | 70 | 6 |
| M24 | 1” | 26 | 80 | 6 |
| M27 | 30 | 90 | 6 | |
| M30 | 1 1/8” | 33 | 95 | 6 |
| M33 | 1 1/4” | 36 | 100 | 6 |
| M36 | 1 3/8” | 39 | 110 | 8 |
| M39 | 1 1/2” | 42 | 125 | 8 |
| M42 | 45 | 135 | 8 | |
| M45 | 1 3/4” | 48 | 140 | 8 |
| M48 | 52 | 150 | 10 | |
| M52 | 2” | 56 | 160 | 10 |
* - thread size of the fastener
Designations:
d - thread size of bolts, nuts
d₁ - washer inner diameter
a - size of the washer sides
h - thickness
Estimate for the “DIN 436 Square Washer” category
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