Electro Hardware MS1007M17F16F Round Board Spacer M4

Product Description

The ELECTRO HARDWARE MS1007M17F16F is a round, female unthreaded circuit board spacer designed for M4 screw applications in printed circuit board assemblies. Molded from Nylon Grade 101 and left uncoated with a bright finish, this spacer provides reliable electrical isolation and precise standoff between board layers or between a board and a mounting surface. It measures 4 mm overall length, 6 mm outside diameter, and accepts an inside diameter range of 4.2 to 4.8 mm, making it a metric-dimensioned component suited to precision PCB layout work. Installation is handled by electronics assembly technicians and electrical contractors working on control board assemblies.

This spacer is used in residential and commercial electronic control board assemblies wherever a non-conductive, metric standoff is required. Typical applications include HVAC control boards, industrial automation panels, and other PCB mounting scenarios where an M4 fastener is specified and electrical isolation between the board and the chassis or adjacent component layer is necessary. The nylon construction resists common electrical interference and provides a lightweight, corrosion-free mount point.

Key Features

• Nylon Grade 101 construction provides electrical isolation and corrosion resistance
• Fits M4 screw size with inside diameter range of 4.2 to 4.8 mm
• 4 mm overall length with tight length tolerance of -0.13 to 0.13 mm
• 6 mm outside diameter in a round body profile
• Female unthreaded design for use with M4 fasteners
• Meets MIL-P-17091B fastener standard
• Uncoated bright finish — no outgassing or coating contamination risk near sensitive PCB surfaces

Compatibility

Designed as an OEM-style metric circuit board spacer for M4 screw applications in PCB assemblies conforming to MIL-P-17091B specifications.

Installation Notes

This spacer is installed by electronics assembly technicians or electricians during PCB mounting operations. Disconnect and de-energize all control boards and associated power sources before servicing or replacing board hardware. Use appropriate ESD precautions when handling circuit boards and related hardware. Do not over-torque M4 fasteners into nylon spacers, as the unthreaded female bore does not engage threads and relies on the fastener and mating hardware for clamping load.