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Washers · GB/T 97.1 / ISO 7089

M16 General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087)

For General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087), the M16 thread sits in the medium range of the catalog and is one of the most-asked general flat washer — gb/t 97.1 / iso 7089 (series 087) in this family. The dimensional and assembly data follow.

M16 Dimensional Row (GB/T 97.1 / ISO 7089)

For bolt sizeInner diameter d1 (mm)Outer diameter d2 (mm)Thickness t (mm)Reference standard
M1617.030.03.0ISO 7089 / GB/T 97.1

Spanner & Drive for M16 General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087)

Drive geometry for M16 General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087) is given by the row above; match the tool to the listed values.

Common Applications for M16 General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087)

M16 General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087) are commonly specified for medium-duty structural joints.

Mating Parts for M16

A M16 flat washer pairs with a M16 bolt/screw and matching M16 nut.

When to Step Up or Down from M16

When the joint preload approaches the proof load of M16 class 8.8, step up to M20 class 8.8 (or move to M16 class 10.9). When the joint is over-specified, M12 often saves weight and cost without losing the safety margin.

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

Request a Quote

Adjust the parameters in the drawing above and click "Request this configuration" to send the exact specification straight to this form.

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Specification
Business Information

Dimensions & Specifications (GB/T 97.1 / ISO 7089)

For bolt sizeInner diameter d1 (mm)Outer diameter d2 (mm)Thickness t (mm)Reference standard
M33.27.00.5ISO 7089 / GB/T 97.1
M44.39.00.8ISO 7089 / GB/T 97.1
M55.310.01.0ISO 7089 / GB/T 97.1
M66.412.01.6ISO 7089 / GB/T 97.1
M88.416.01.6ISO 7089 / GB/T 97.1
M1010.520.02.0ISO 7089 / GB/T 97.1
M1213.024.02.5ISO 7089 / GB/T 97.1
M1415.028.02.5ISO 7089 / GB/T 97.1
M1617.030.03.0ISO 7089 / GB/T 97.1
M1819.034.03.0ISO 7089 / GB/T 97.1
M2021.037.03.0ISO 7089 / GB/T 97.1
M2425.044.04.0ISO 7089 / GB/T 97.1
M3031.056.04.0ISO 7089 / GB/T 97.1
M3637.066.05.0ISO 7089 / GB/T 97.1

Frequently Asked Questions

What clearance and tapping drill suit M16?

Use a 17.5 mm clearance hole (ISO 273 medium) for through-fixing, or a 14 mm tapping drill for a coarse M16 thread.

Which washer dimensions matter most for M16?

For a flat washer, the outside diameter (the bearing surface) and the thickness control how the load is spread under the head and how much elastic preload is preserved. The inside diameter must clear the bolt body but not be so large that the head bears mostly on the washer's outer rim.

What is the coarse-thread pitch of M16 for General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087)?

For M16 the standard coarse pitch is 2 mm — this is the value used for General Flat Washer — GB/T 97.1 / ISO 7089 (Series 087).

How do I request a quotation?

Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.