Dimensional and assembly data for M16 Tab Lock Washer for Round Nut to GB/T 858. Includes head size and width across flats, clearance-hole and tapping-drill diameters, tightening torque per property class, and the sizes to step up or down to when the joint requires it.
M16 Dimensional Row (GB/T 858)
| For shaft / nut size | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Thickness t (mm) | Tab length (mm) | Reference standard |
|---|---|---|---|---|---|
| M16 | 16.5 | 30 | 1.0 | 10 | GB/T 858 |
Spanner & Drive for M16 Tab Lock Washer for Round Nut — GB/T 858 (Series 072)
Drive geometry for M16 Tab Lock Washer for Round Nut — GB/T 858 (Series 072) is given by the row above; match the tool to the listed values.
Common Applications for M16 Tab Lock Washer for Round Nut — GB/T 858 (Series 072)
M16 Tab Lock Washer for Round Nut — GB/T 858 (Series 072) 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.