DJ WASHERS is a square washer manufacturer in China supplying DIN 436 square washers and DIN 434 taper washers for steel construction and structural bolting. Made to standard or drawing with specified material and finish.
For DIN 436 square washers, send size, material, finish and quantity. For DIN 434 taper washers, confirm the beam or channel application. For drawing-based stamping washers, send drawing, material, tolerance, finish and application.
DIN 436DIN 434Square WasherTaper WasherBy Drawing
Square washers provide wide bearing area for timber, steel and formwork joints.
Finish depends on standard, thickness and application environment.
Square washer RFQs need standard, size and bearing-surface details.
Send standard, size, material, finish and quantity. For custom shapes, include drawing or sample notes.
Yes. Send a drawing or sample with material, thickness and tolerance. Tooling can be built on order confirmation.
Drawing or sample, material grade, thickness, hole diameter, outer shape, tolerance, surface finish, quantity and packing requirement.
Yes. Common finishes include zinc plating, mechanical zinc, hot-dip galvanizing, Dacromet and black oxide. Finish is confirmed at RFQ.
DIN 436 is a flat square washer used for load distribution in timber and steel joints. DIN 434 has an 8% taper and is used on the inclined flanges of I-beams and channels so the bolt sits square to the surface.
Yes. Minimum order quantity is aligned at RFQ and varies by tooling and material. Send the drawing and quantity for a quotation.
Dimensions and weight per 1000 pieces are kept for RFQ and shipping estimates.
Square washers for timber, steelwork, and broad bearing surface requirements.
| Thread size | d inside diameter min (= nominal) | d inside diameter max | h square side length nominal | h side length min | s thickness max (= nominal) | s thickness min | Approx. steel weight / 1000 pcs (kg) |
|---|---|---|---|---|---|---|---|
| M10 | 11 | 11.43 | 30 | 28.7 | 3 | 2.4 | 20.0 |
| M12 | 13.5 | 13.93 | 40 | 38.4 | 4 | 3.4 | 45.7 |
| M16 | 17.5 | 18.2 | 50 | 48.4 | 5 | 4 | 88.7 |
| M20 | 22 | 22.84 | 60 | 58.1 | 5 | 4 | 126 |
| M22 | 24 | 24.84 | 70 | 68.1 | 6 | 5 | 209 |
| M24 | 26 | 26.84 | 80 | 78.1 | 6 | 5 | 275 |
| M27 | 30 | 30.84 | 90 | 87.8 | 6 | 5 | 348 |
| M30 | 33 | 34 | 95 | 92.8 | 6 | 5 | 385 |
| M33 | 36 | 37 | 100 | 97.8 | 6 | 5 | 423 |
| M36 | 39 | 40 | 110 | 107.8 | 8 | 6.8 | 685 |
| M39 | 42 | 43 | 125 | 122.5 | 8 | 6.8 | 895 |
| M42 | 45 | 46 | 135 | 132.5 | 8 | 6.8 | 1050 |
| M45 | 48 | 49 | 140 | 137.5 | 8 | 6.8 | 1120 |
| M48 | 52 | 53.2 | 150 | 147.5 | 10 | 8.8 | 1600 |
| M52 | 56 | 57.2 | 160 | 157.5 | 10 | 8.8 | 1820 |
Taper washers for sloped flange or channel applications.
| Thread size | M8 | M10 | M12 | M16 | M20 | M22 | M24 | M27 |
|---|---|---|---|---|---|---|---|---|
| d inside diameter min (= nominal) | 9 | 11 | 13.5 | 17.5 | 22 | 24 | 26 | 30 |
| d inside diameter max | 9.36 | 11.43 | 13.93 | 17.93 | 22.52 | 24.52 | 26.52 | 30.52 |
| a square side length nominal | 22 | 22 | 26 | 32 | 40 | 44 | 56 | 56 |
| a min | 20 | 20 | 24 | 29.5 | 37.5 | 41.5 | 53 | 53 |
| a max | 24 | 24 | 28 | 34.5 | 42.5 | 46.5 | 59 | 59 |
| b width nominal | 22 | 22 | 30 | 36 | 44 | 50 | 56 | 56 |
| h average thickness nominal | 3.8 | 3.8 | 4.9 | 5.9 | 7 | 8 | 8.5 | 8.5 |
| h min (thin end) | 3.2 | 3.2 | 3.9 | 4.9 | 6 | 7 | 7.3 | 7.3 |
| h max (thick end) | 4.4 | 4.4 | 5.9 | 6.9 | 8 | 9 | 9.7 | 9.7 |
| r radius approx. | 1.6 | 1.6 | 2 | 2.4 | 2.8 | 3.2 | 3.2 | 3.2 |
| Approx. steel weight / 1000 pcs (kg) | 9.57 | 8.85 | 18.2 | 31.4 | 56.9 | 82.3 | 128 | 119 |
