Hobson Flat Round Sampson Washer, M20

The Hobson flat round Sampson washer comes in 19 sizes (plain): M8 to M100. A Sampson washer is a hardened flat round washer. Hardness is given in HRC, the Rockwell C scale.

The hardness is 38-45HRC.

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

• 19 items: M8 to M100
• Plain
• Hardness 38-45HRC
• Pack quantity shown for each item

Key specifications

Choosing the right option

The standard named for the washer (where one is named) sets its dimensions, so check that it matches the specification for your joint. Plain washers are uncoated, so they suit fittings that are protected another way. For a similar washer in another material, finish or size range see 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".

Related washers: Hobson Flat Round Sampson Washer, 38-45HRC, Zinc Plated, M6 to M36, 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".