Hobson SBSOZC0250075 1/4" x 3/4" UNC Button Head Socket Screw, Alloy Steel, Zinc

The Hobson UNC button head socket screw on this page has a UNC (Unified National Coarse) thread and is alloy steel, zinc finish. This page lists 4 items: 1/4" to 3/8", in lengths from 3/4" to 1".

The Hobson acronym list names this head style: BHCS, Button Head Cap Screw (manufacturer-stated).

The head is low and domed, with a socket drive.

The Hobson acronym list defines UNC as Unified National Coarse Thread and TPI as threads per inch. The table gives the threads per inch from the Hobson thread table, for the sizes it lists (manufacturer-stated).

All items are supplied as a box of 100.

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 a low, domed head is wanted
• Driven from the socket in the head with a matching key or bit
• Replacing a button head socket screw of the same thread form, size and length

Features

• 4 items: 1/4" to 3/8"
• UNC thread, button head socket screw
• Alloy steel
• Zinc finish
• Pack quantity shown for each item

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. Sizes are nominal diameters in inches; compare the threads per inch in the table with your thread. By convention the length of a socket head cap or button head screw is measured from under 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.

Related products

Related socket screws: Hobson UNC Button Head Socket Screw, Alloy Steel, Plain, #10-24 to 1/2", Hobson UNF Button Head Socket Screw, Alloy Steel, Plain, 1/4" and 5/16" and Hobson UNC Socket Head Cap Screw, Alloy Steel, Plain, #4-40 to 1-1/2".