DIN 436 & DIN 434 Square Washers

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.

DIN 436 square washer electro zinc plated

Quick Specs

StandardsDIN 436, DIN 434, or by drawing
Size rangeM10–M52 (DIN 436); M8–M27 (DIN 434)
Material & FinishCarbon steel; black oxide, electro-zinc plating, hot-dip galvanizing, mechanical zinc plating
StrengthPer DIN standard, below 200 HV

Standards & Compliance

For DIN 436 square washers, send size, material, finish and quantity. For drawing-based stamping washers, send drawing, material, tolerance, finish and application.

DIN 436DIN 434Square WasherTaper WasherBy Drawing

Send standard, size, finish and quantity to get a washer quote.

Typical Applications

Steel construction: DIN 436 square washers for timber and bolted steel joints.
Structural bolting: DIN 434 taper washers for I-beam and channel flanges.
Heavy timber & formwork: large square washers for load distribution.
Custom square sizes: non-standard square washers made to drawing.

Send specs → get a quote

Send standard, size, material, finish and quantity. For custom shapes, include drawing or sample notes.

Send specs → get a quote

Square & Custom Stamping Washers FAQ

  • Can DJ WASHERS make square washers by drawing?

    Yes. Send a drawing or sample with material, thickness and tolerance. Tooling can be built on order confirmation.

  • What information is needed for custom stamping washers?

    Drawing or sample, material grade, thickness, hole diameter, outer shape, tolerance, surface finish, quantity and packing requirement.

  • Can square washers be zinc plated or hot-dip galvanized?

    Yes. Common finishes include zinc plating, mechanical zinc, hot-dip galvanizing, Dacromet and black oxide. Finish is confirmed at RFQ.

  • What is the difference between DIN 436 square washer and DIN 434 square taper washer?

    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.

  • Can you produce small-batch custom stamping parts?

    Yes. Minimum order quantity is aligned at RFQ and varies by tooling and material. Send the drawing and quantity for a quotation.

Specifications & Weight per 1000 pcs

Dimensions and weight per 1000 pieces are kept for RFQ and shipping estimates.

DIN 436 Square Washer Dimensions and Weight
SizeInner Ø d (mm)Side s (mm)Thickness h (mm)Weight /1000 pcs (kg)
M101130320.0
M1213.540445.7
M1617.550588.7
M2022605126
M2224706209
M2426806275
M2730906348
M3033956385
M33361006423
M36391108685
M39421258895
M424513581050
M454814081120
M4852150101600
M5256160101820
DIN 434 Square Taper Washer Dimensions and Weight

Square taper washers with an 8% slope for bolting onto inclined flanges of I-beams and channels. Dimensions to DIN 434 standard.

SizeInner Ø d (mm)Side a × b (mm)Thickness h (mm)Weight /1000 pcs (kg)
M8922 × 223.88.85
M101122 × 223.89.57
M1213.526 × 304.918.2
M1617.532 × 365.931.4
M202240 × 44756.9
M222444 × 50882.3
M242656 × 568.5128
M273056 × 568.5119
Send standard, size, finish and quantity to get a washer quote.