Hobson Metric Fine Hex Set Screw, 55mm

The Hobson metric fine hex set screw has a hex head and a metric fine pitch thread, and is fitted into a tapped hole or through a clearance hole with a nut (Class 10.9, plain). There are 9 items in M30, lengths 50 to 100mm. Class 10.9 is high tensile, and corresponds to imperial grade 8.

Confirm the pitch before ordering matching nuts or tapped holes. Every item is supplied as a pack of 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

• 9 items: M30
• Metric fine pitch thread
• Class 10.9, plain
• Length 50 to 100mm

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. Fine pitch means a finer pitch than the standard coarse thread of the same diameter, so a standard metric nut will not fit. 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, Zinc Plated, M5 to M30.

Related items: Hobson Metric Fine Hex Set Screw, Class 10.9, Zinc Plated, M10 to M30, Hobson Metric Fine Hex Set Screw, Class 8.8, Plain, M8 to M14 and Hobson Metric Fine Hex Set Screw, Class 8.8, Zinc Plated, M8 to M24.