Reliable Din 125 Aluminium Flat Washers for Load Distribution

They can be manufactured to the dimensions and tolerances specified by the applicable DIN 125 edition or to a customer drawing based on that standard. The enquiry should state the required series, dimensions and any deviations because similar washer names can cover different proportions.

Selection should consider nominal fastener size, inside diameter, outside diameter, thickness, aluminium grade and any finish requirement. The washer must fit the fastener and joint geometry without interfering with nearby features or reducing required edge distance.

Aluminium washers are lightweight, corrosion resistant in many environments and useful where compatibility with aluminium assemblies matters. They are not a universal replacement for steel washers; bearing stress, clamp load, temperature and creep must be evaluated for the joint.

Grade selection depends on required hardness, formability, corrosion resistance, conductivity and availability in the specified thickness. Conex confirms the alloy and temper after reviewing the standard, drawing and service conditions.

Yes. Conex manufactures din 125 aluminium flat washers to customer drawings and application requirements. Dimensions, interfaces, material, finish, identification, inspection and packaging can be tailored after an engineering review, subject to process capability and order quantity.

Inside diameter, outside diameter, thickness, flatness and burr limits should follow the stated standard or controlled drawing. Tolerance capability depends on material thickness, tooling and production method, so critical fit requirements should be identified during quotation.

Depending on size, thickness and quantity, washers may be blanked or punched from sheet and then deburred, flattened, cleaned and finished. Special profiles can require laser cutting, machining or dedicated tooling.

Options may include mill finish, cleaning, tumbling, polishing, anodising or conversion coating, subject to alloy and end-use requirements. Finish thickness, colour, masking, electrical contact and cosmetic criteria should be specified.

They may be used together when joint load and environmental compatibility are acceptable, but dissimilar-metal corrosion must be considered. Isolation, suitable coatings or sealants and drainage may be needed in wet or marine exposure.

Inspection can include material verification, inside and outside diameter, thickness, flatness, burr condition and visual finish. Sampling level, certificate requirements and any special gauges should be agreed with the order.

For an accurate quotation, provide a controlled drawing or 3D model, material or alloy requirement, critical dimensions and tolerances, finish, order quantity, annual demand, application and any inspection or documentation needs. Conex reviews manufacturability before confirming tooling, process route, lead time and commercial terms.

DIN 125 A washers have a plain edge on both sides, while DIN 125 B washers have a chamfered outer edge. Both have the same inner diameter, outer diameter and thickness for each bolt size.

Yes. DIN 125 has been superseded by ISO 7089 (normal series) and ISO 7090 (chamfered). Dimensions are virtually identical, so we can mark and certify washers to either standard as required by the customer.

DIN 125 aluminium washers are typically punched from 1050, 5052 or 5754 strip for good corrosion resistance and electrical conductivity, and from 6061 where higher strength is required.