Hobson WRHTGM10 M10 x 20mm Flat Round Hardened Washer, 35-41 HRC, Hot Dip Galvanised

This page lists 11 items of the Hobson flat round hardened washer (hot dip galvanised): M10 to M56.

This is a hardened flat round washer. The supplier lists its hardness in HRC, the Rockwell C scale.

The supplier lists a hardness of 35-41 HRC (manufacturer-stated).

The supplier item description lists each size as the bolt or screw size followed by further figures without saying which is which. Those figures are shown as listed, and outside diameter and thickness are labelled only where the store option or the Hobson stock list states them.

Pack quantity varies by size and is shown for each item in the table.

Where this product is used

• Under the nut or bolt head of a bolted joint where a hardened flat washer is specified
• Spreading the clamping load of a bolt over a larger area

Features

• 11 items: M10 to M56
• Hot dip galvanised
• Hardness 35-41 HRC (manufacturer-stated)
• Dimensions shown as listed by the supplier
• Pack quantity shown for each item

Common specifications

Key specifications

Selecting the right option

Choose the washer by the bolt or screw size it is made for, then check the dimensions in the table against the space you have. Hot dip galvanising is a zinc coating that is thicker than zinc plating.

Related products

Related washers: Hobson Flat Round Sampson Washer, 38-45HRC, Plain, M8 to M100, Hobson Flat Round Sampson Washer, 38-45HRC, Zinc Plated, M6 to M36 and Hobson Flat Round Sampson Washer, 38-45HRC, Zinc Yellow Passivate, 1-5/8" to 3".