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 4.6 UTS, plain). There are 14 items: M16, M20 and M24, in lengths from 40 to 150mm. Class 4.6 is low tensile carbon steel, and corresponds to imperial grade 2.

These screws are Class 4.6 UTS. UTS is a tensile strength abbreviation.

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

• 14 items: M16, M20 and M24
• Class 4.6 UTS, plain
• Length 40 to 150mm
• Sizes: M16, M20 and M24

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 8.8, Plain, M6 to M24.

Related items: Hobson Metric Hex Set Screw, Class 4.6 UTS, Zinc Plated, M5 to M20, Hobson Metric Hex Set Screw, Class 8.8, Hot Dip Galvanised, M6 to M42 and Hobson Metric Hex Set Screw, Class 8.8, Plain, M6 to M24.