Electro Hardware MS1017M07F16F Round Board Spacer M4

Product Description

The ELECTRO HARDWARE MS1017M07F16F is a round, female unthreaded circuit board spacer designed to maintain precise standoff clearance between a PCB and a mounting surface. Built from Grade 303 stainless steel with a bright uncoated finish, this spacer meets the QQ-S-763 fastener standard. It accommodates an M4 screw, measures 9 mm (approximately 0.354 inches) overall length, and carries an outside diameter of 6 mm (approximately 0.236 inches). The inside diameter ranges from 4.2 mm to 4.8 mm (approximately 0.165 to 0.189 inches). It is suited for technicians and assemblers who need corrosion-resistant, dimensionally consistent hardware in control board assemblies, enclosures, and electronic sub-panels.

This spacer is used in applications where a rigid, non-threaded standoff is needed to separate a circuit board from a chassis or mounting plate. Typical install scenarios include HVAC control board assemblies, industrial enclosures, electrical panel sub-assemblies, and any application requiring metric M4 fastener hardware with tight dimensional tolerances. The stainless steel construction makes it appropriate for environments where mild corrosion resistance is a factor, such as outdoor enclosures or humid mechanical rooms.

Key Features

• Grade 303 stainless steel construction meets QQ-S-763 fastener standard
• Female unthreaded body accepts M4 screw for straightforward board mounting
• 9 mm overall length provides consistent standoff clearance between board and chassis
• 6 mm outside diameter and 4.2 to 4.8 mm inside diameter for precise fitment
• Bright uncoated finish — no coating to flake or interfere with grounding contact
• Round body shape suits standard circular PCB mounting hole patterns

Compatibility

Designed as an OEM-style metric circuit board spacer for M4 screw applications in control board assemblies, enclosures, and electronic mounting configurations requiring a female unthreaded round standoff.

Installation Notes

Installation is typically performed by electronics assemblers, controls technicians, or licensed electricians during panel or control board assembly. Power down and de-energize the assembly before placing or removing any circuit board hardware. Use appropriately sized M4 fasteners and do not overtighten, as distortion of the spacer can affect board alignment and clearance. Follow applicable NEC guidelines when working within electrical enclosures.