Electro Hardware MTHS3022M07F16 Thumb Screw M4 X 0.7

Product Description

The ELECTRO HARDWARE MTHS3022M07F16 is a 303-grade stainless steel thumb screw with a knurled head, designed for hand-tightening applications where tools are impractical or undesirable. The M4 x 0.7 metric thread runs to an overall length of 21 mm with a 10 mm head diameter and 5 mm head height. Manufactured without a shoulder, the screw provides a clean, flush engagement in standard through-hole and threaded-insert applications. The uncoated 303 stainless steel construction delivers corrosion resistance suitable for light industrial, panel assembly, and instrument enclosure use. Electricians, panel builders, and mechanical assemblers working on enclosures, control boxes, or instrumentation housings are the primary installers.

This thumb screw fits standard M4 x 0.7 threaded holes and inserts in metric assemblies. Typical applications include tool-accessible access panels, electrical enclosure covers, HVAC equipment service doors, and instrumentation mounting in environments where repeated hand removal is required. The knurled head provides grip without the need for a screwdriver or wrench, making it well suited for service panels that require frequent access. No shoulder design keeps the mating surface engagement straightforward and compatible with standard flat-face hardware.

Key Features

• 303 stainless steel construction meets QQ-S-763 standard for corrosion resistance in light industrial environments
• M4 x 0.7 metric thread, 21 mm overall length for standard panel and enclosure applications
• Knurled head — 10 mm diameter, 5 mm height — allows secure hand-tightening without tools
• Without-shoulder design simplifies installation into standard threaded holes and inserts
• Uncoated finish maintains dimensional tolerances and avoids coating delamination in repeated-use service points

Compatibility

Designed for use in standard M4 x 0.7 metric threaded assemblies. Suitable as an OEM-style or aftermarket replacement thumb screw in any application requiring a shoulderless, knurled-head metric fastener of this thread size.

Installation Notes

Installation is typically performed by hand; no special tools are required for normal seating. Verify that the mating threaded hole or insert is clean and free of debris before threading in. Do not overtighten — thumb screws are designed for hand-torque loads only and can strip if driven with a tool. Follow applicable enclosure or equipment manufacturer guidelines for torque and re-entry frequency.