Hobson BS46PCM160040 M16 x 40mm Metric Hex Set Screw, Class 4.6 UTS, Plain

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). This page lists 14 items: M16, M20 and M24, in lengths from 40 to 150mm.

Hobson lists class 4.6 as low tensile carbon steel, and its class and grade chart pairs class 4.6 with imperial grade 2 (manufacturer-stated).

The supplier names these screws Class 4.6 UTS. The Hobson acronym list includes UTS as a tensile strength abbreviation (manufacturer-stated).

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

Pack quantity is shown for each item in the table.

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
• Metric thread, pitch shown in the table
• Class 4.6 UTS, plain
• Length 40 to 150mm

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. Check the across-flats size of the head before choosing a spanner; no spanner size is published for these items. For a different strength level see Hobson Metric Hex Set Screw, Class 8.8, Plain, M6 to M24.

Related products

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.