Gibraltar Z2424 Threaded Rest Button 1/4-28 Low Carbon Steel

Product Description

The GIBRALTAR Z2424 is a threaded rest button designed to provide a fixed, adjustable stop point in jigs, fixtures, and workholding assemblies. Machined from low-carbon steel with a black oxide coating for corrosion resistance, this button measures 0.8125 inches in overall length with a 0.5-inch head height and a 1/4-28 unified fine thread. The 0.375-inch hex drive allows for straightforward installation and adjustment with standard hand tools. It is typically installed by machinists, toolmakers, and maintenance technicians working with precision fixturing applications.

Threaded rest buttons like the Z2424 are used in machine shop and manufacturing environments where repeatable part positioning is critical. They thread into tapped holes in fixture plates, tombstones, or base plates and provide a hardened or treated contact surface against which a workpiece rests. The black oxide finish helps reduce surface wear and light corrosion in shop environments. This button ships as a single unit and is suited for low-volume tooling builds or individual replacement in existing fixtures.

Key Features

• Black oxide coating provides corrosion resistance and reduces surface glare
• 1/4-28 unified fine thread for secure, precise depth adjustment
• 0.375-inch hex drive compatible with standard hex keys and wrenches
• Low-carbon steel construction balances machinability with durability
• Compact 0.8125-inch OAL suits tight fixture clearances

Compatibility

Designed as a standard threaded rest button for use in precision fixturing, jig plates, and workholding setups requiring a 1/4-28 threaded mounting hole.

Installation Notes

Installation is performed by machining a 1/4-28 tapped hole to the appropriate depth in the fixture body before threading in the button. Use a hex key or wrench on the 0.375-inch hex to set the button to the desired height, then lock in position if the fixture design includes a locking feature. Ensure the mating tapped hole is clean and free of chips before installation to prevent cross-threading or inaccurate seating.