Gibraltar TS-306-G Steel Thumb Screw 1/4-20 Knurled

Product Description

The GIBRALTAR TS-306-G is a knurled-head thumb screw designed for hand-tightening applications where tools are impractical or unnecessary. The fastener features a plastic black knurled head over a steel shank, with a zinc-plated finish for basic corrosion resistance. It carries a 1/4-20 UNC thread standard and includes a shoulder section for precise positioning or load distribution. At 1.82 inches overall length and weighing 0.06 pounds, it suits panel assemblies, enclosures, access covers, and light equipment where frequent removal and reinstallation are required by technicians in HVAC, electrical, or general trade service work.

This thumb screw is suited for use in panel covers, junction box lids, equipment guards, and similar assemblies that require repeated hand access. The shoulder design helps locate and retain the fastener in clearance holes, reducing the chance of misalignment during reinstallation. It is appropriate for both shop fabrication and field service applications across HVAC, electrical, and mechanical trades where a 1/4-20 UNC threaded fastener with a large grippable head is needed.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• Knurled plastic head in black allows secure hand grip without tools
• Shoulder design aids alignment and positioning in clearance holes
• Zinc-plated steel shank provides basic corrosion resistance
• 0.94 inch head diameter gives a wide grip surface for finger tightening
• Compact 1.82 inch overall length suits shallow panel applications

Compatibility

Designed as a standard 1/4-20 UNC replacement or service thumb screw for panels, enclosures, and equipment covers requiring hand-removable fasteners in the inch measurement system.

Installation Notes

Installation requires no special tools; the knurled head is intended for hand tightening only. Do not use a wrench or driver on the plastic head, as this may crack or deform it. Verify the mating thread is a standard 1/4-20 UNC tapped hole before installation. De-energize any electrical panel or enclosure before servicing fasteners on live equipment per applicable NEC guidelines.