Hobson BF88ZCM050010 M5 x 10mm Metric Serrated Hex Flange Bolt, Class 8.8, Zinc plated

The Hobson metric serrated hex flange bolt has a hex head with a flange under it, which acts as a built-in washer face, and a metric thread (Class 8.8, zinc plated). This page lists 25 items: M5 to M10, in lengths from 10 to 60mm.

Hobson lists class 8.8 as high tensile, and its class and grade chart pairs class 8.8 with imperial grade 5 (manufacturer-stated).

The pitch shown for each size is the coarse pitch given in the Hobson thread table (manufacturer-stated).

Hobson lists "serrated" as locking serrations on the bearing face of a bolt or nut (manufacturer-stated).

Every item is supplied as a pack of 100.

Where this product is used

• Fastening with a nut or into a tapped hole, where the flange acts as a built-in washer under the head
• Replacing a hex flange bolt of the same thread form, diameter and length

Features

• 25 items: M5 to M10
• Metric thread, pitch shown in the table
• Class 8.8, zinc plated
• Length 10 to 60mm
• Minimum tensile strength by size from the Hobson guide, shown in the table (manufacturer-stated)

Common specifications

Key specifications

Selecting the right option

Choose the thread form first: the screw and the nut or tapped hole must match in thread form, diameter and pitch. Metric sizes are the nominal diameter in millimetres; compare the pitch in the table with your nut or tapped hole. Length is measured from under the head to the end of the screw. Strength figures are the minimum tensile strengths for the class or grade and size range in the Hobson guide, which is a head-marking table, so treat them as the class or grade minimum and not a test result for the screw (manufacturer-stated).

Related products

Related items: Hobson Metric Fine Hex Flange Bolt, No Serration, Class 8.8, Zinc Yellow, M10 x 25 to 50mm, Hobson Metric Fine Serrated Hex Flange Bolt, Class 8.8, Zinc Yellow, M12 x 25 and 50mm and Hobson Metric Hex Flange Bolt, Class 10.9, Plain, M14 x 35 to 70mm.