Electro Hardware THS1011M01F21 Brass Thumb Screw 6-32

Product Description

The ELECTRO HARDWARE THS1011M01F21 is a brass thumb screw with a knurled head and a 6-32 UNC thread, designed for hand-tightening applications where tool-free fastening is required. The knurled head provides finger grip for secure, repeatable tightening without a driver. At 0.6875 inches overall length with a shoulder diameter of 0.312 inches and a 0.125-inch shoulder length, this fastener suits close-tolerance assemblies. Manufactured from brass with a zinc finish, it meets ASTM B633 and QQ-B-626B Comp 22 Type 1 standards. Installed by assemblers, technicians, and tradespeople in electrical panels, enclosures, and light mechanical assemblies where hand-removable fasteners are standard practice.

This thumb screw is suited for residential and commercial applications where frequent access panels, equipment enclosures, or instrument housings require repeated hand removal and reinstallation. Its with-shoulder design provides a bearing surface that prevents over-insertion into mating holes. The 3/8-inch head diameter and 3/16-inch head height offer a low-profile grip surface for confined spaces. Typical install scenarios include electronic enclosures, HVAC control panel covers, junction boxes, and light-duty instrument mounting.

Key Features

• 6-32 UNC thread for compatibility with standard unified coarse-thread tapped holes
• Knurled brass head for secure hand-tightening without tools
• With-shoulder design provides a positive bearing surface and controls insertion depth
• Brass construction with zinc finish meets ASTM B633 and QQ-B-626B Comp 22 Type 1
• Compact 0.6875-inch overall length suits shallow-clearance fastening locations
• 3/8-inch head diameter and 3/16-inch head height for low-profile grip

Compatibility

Designed as a standard 6-32 UNC thumb screw for use in any tapped or clearance-hole application requiring a hand-removable brass fastener in electrical enclosures, instrument panels, or light mechanical assemblies.

Installation Notes

De-energize any electrical enclosure or panel before servicing fasteners or internal components. Hand-tighten only — the knurled head is not designed for driver torque. Confirm the mating thread is 6-32 UNC before installation to avoid cross-threading. Follow applicable NEC or equipment manufacturer guidelines when securing panel covers in electrical installations.