Hobson SC10ZCM060012 M6 x 12mm Metric Socket Countersunk Screw, Zinc Plated

The Hobson metric socket countersunk screw on this page has a metric thread and is alloy steel (per the Hobson guide for this class), zinc plated finish, class 10.9. This page lists 19 items: M6 to M24, in lengths from 12mm to 60mm.

The Hobson acronym list names this head style: CSK, Countersunk Head (manufacturer-stated).

The head is tapered so that it sits flush in a countersunk hole.

The supplier names this item Class 10.9. The Hobson guide lists class 10.9 as alloy steel, quenched and tempered, for metric sizes M6 to M48 (manufacturer-stated).

Strength figures are the class minimums from the Hobson head-marking table for the size range it states, so treat them as the class minimum and not a test result for the screw (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. It changes with the size and length.

The supplier file does not give the socket (key) size, head dimensions or thread length for these screws, so none are published. Check the key size against a screw in hand.

Where this product is used

• Fastening where the head is to sit flush in a countersunk hole
• Driven from the socket in the head with a matching key or bit
• Replacing a countersunk socket screw of the same thread form, size and length

Features

• 19 items: M6 to M24
• Metric thread, socket countersunk screw
• Alloy steel, quenched and tempered, per the Hobson guide for this class (manufacturer-stated)
• Zinc plated finish
• Class 10.9 strength level named by the supplier
• Minimum tensile strength per 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 must match its nut or tapped hole in thread form, diameter and pitch. Metric sizes are the nominal diameter in millimetres; compare the pitch in the table with your thread. By convention the length of a flat head (countersunk) screw is the overall length including the head; the supplier file does not state the measuring point. Check the key size against the screw in hand, as the supplier file does not state it. For a different class or finish see the related pages.

Related products

Related socket screws: Hobson Metric Flat Head Socket Screw, Grade 12.9 Alloy Steel, Plain, M3 to M24, Hobson Metric Flat Head Socket Screw, Grade 12.9 Alloy Steel, Zinc, M4 to M20 and Hobson Metric Button Head Socket Screw, Grade 12.9 Alloy Steel, Zinc, M4 to M12.