Hobson Metric Hex Set Screw, M20 / 50

The Hobson metric hex set screw has a hex head and a metric thread, and is fitted into a tapped hole or through a clearance hole with a nut (Class 8.8, hot dip galvanised). There are 168 items: M6 to M42, in lengths from 12 to 400mm. Class 8.8 is high tensile, and corresponds to imperial grade 5.

Where this product is used

• Fitted into a tapped hole, or through a clearance hole with a nut and washer, to clamp parts together
• Replacing a hex head screw of the same thread form, diameter, pitch and length
• Machinery, equipment and fabrication work where a hex head screw is called for

Features

• 168 items: M6 to M42
• Class 8.8, hot dip galvanised
• Length 12 to 400mm
• Sizes: M6 to M42

Key specifications

Choosing the right option

Choose the thread form first: the screw and the nut or tapped hole must match in thread form, diameter and pitch. Length is measured from under the head to the end of the screw. For a different strength level see Hobson Metric Hex Set Screw, Class 4.6 UTS, Plain, M16, M20 and M24.

Related items: Hobson Metric Hex Set Screw, Class 8.8, Plain, M6 to M24, Hobson Metric Hex Set Screw, Class 8.8, Zinc Plated, M5 to M30 and Hobson Metric Hex Set Screw, Class 4.6, Mild Steel, Zinc Plated, M6 to M16.