Plain Washers & Adjustment Shims
Plain washers to ISO 7089 and precision shims, quoted on inside diameter, outside diameter and thickness rather than on the bolt size they are sold against. A washer described only as M8 leaves the outside diameter and thickness unknown, and those two numbers are what the joint actually needs.
Also searched as: flat washer M8, iso 7089 washer, adjustment shim set, stainless plain washer
Send a drawing, a sample or an OE number and we quote this part type to it. The selection data below is what the quote is built from.
What decides the price
In order of impactID, OD and thickness. All three, every time. A thicker washer spreads load; a wider one spreads it further.
Soft washers conform, hard washers carry load. Using a soft washer under a high-class bolt loses the preload.
A plain washer spreads load. A shim sets a gap, and shims are supplied in thickness steps for that reason.
Worth checking before you order
M8 washers come in several OD and thickness combinations. The bolt size does not fix the other two.
Shims are thin and made to a thickness, not to carry a bolt's load. They deform and the gap comes back.
Selection data
Confirmed per orderQuoted to your specification
Send a drawing or a samplePart numbers for this subcategory are quoted to order. Send the size, grade and finish you need, or a drawing, and we quote against that.
Questions
Do you supply shims in thickness steps?+
Yes, and the steps are stated per line. A shim range without thickness steps is not a usable set.
Can washers be supplied with a hardness figure?+
When the mill or factory issues it. We do not publish a hardness we have not seen.
Send the specification, not the product name.
Grade, size, thread standard and coating are what a quote is built from. A product name alone produces a price that changes twice before the order.