Hobson WR43ZM06 M6 x 13 x 1.5mm Flat Round Sampson Washer, 38-45HRC, Zinc Plated

This page lists 11 items of the Hobson flat round Sampson washer (zinc plated): M6 to M36.

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

The supplier lists a hardness of 38-45HRC (manufacturer-stated).

The supplier description or the Hobson stock list names ASTM F436M Type 1 for some of these items (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.

For 10 of these items the Hobson High Tensile Stock List (April 2011) also gives the inside diameter and the pack weight; they are shown where the catalogue pack matches the supplier pack (manufacturer-stated).

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

Pack weights are given in the Hobson High Tensile Stock List, April 2011, for some of these items (manufacturer-stated).

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: M6 to M36
• Zinc plated
• Hardness 38-45HRC (manufacturer-stated)
• Dimensions labelled where the store option or stock list states them
• Pack quantity shown for each item
• ASTM F436M Type 1 named for these items (manufacturer-stated)

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. The standard named for the washer (where one is named) sets its dimensions, so check that it matches the specification for your joint. Zinc plating is a thin zinc coating; hot dip galvanised washers carry a thicker one. For a similar washer in another material, finish or size range see Hobson Flat Round Sampson Washer, 38-45HRC, Plain, M8 to M100 and Hobson Flat Round Sampson Washer, 38-45HRC, Zinc Yellow Passivate, 1-5/8" to 3".

Related products

Related washers: Hobson Flat Round Sampson Washer, 38-45HRC, Plain, M8 to M100, Hobson Flat Round Sampson Washer, 38-45HRC, Zinc Yellow Passivate, 1-5/8" to 3" and Hobson H9 Impact Imperial Flat Washer, 43-49 HRC, Plain, 3/8" to 1-1/2".