Electro Hardware 1483M09F16-440 Hex Standoff 4-40 2-3/16 in

Product Description

The ELECTRO HARDWARE 1483M09F16-440 is a male-female hex circuit board standoff designed to mount and space printed circuit boards within electronic enclosures, control panels, and HVAC or electrical equipment assemblies. Machined from 18-8 and Grade 303 stainless steel with an anodized finish, this standoff delivers corrosion resistance and dimensional stability in demanding environments. The 4-40 thread size mates with standard hardware, while the hex body shape at 0.25 inches across flats allows wrench installation. Overall length is 2.1875 inches with a body length of 2.0 inches, meeting QQ-S-763 fastener standards for reliable performance in commercial and industrial applications.

This standoff is suited for use in residential and commercial control panels, HVAC circuit board assemblies, electrical enclosures, and general electronics fabrication. Electricians, HVAC controls technicians, and electronics assembly professionals install this type of hardware when stacking or spacing boards at a fixed distance inside a chassis or enclosure. The male-female configuration allows standoffs to be chained or used in single-layer board mounting arrangements where a threaded post on one end and a threaded bore on the other are both required.

Key Features

• Male-female hex body design allows single or stacked circuit board mounting
• 4-40 thread size on both the male post and female bore for standard hardware compatibility
• Overall length of 2.1875 inches with a 2.0 inch body length and 3/16 inch thread length
• 0.25 inch width across flats enables wrench tightening for secure installation
• 18-8 and Grade 303 stainless steel construction with anodized finish for corrosion resistance
• Meets QQ-S-763 fastener standard with a length tolerance of -0.005 to +0.005 inches

Compatibility

Designed as a standard 4-40 threaded male-female hex standoff for use in circuit board mounting applications where QQ-S-763 compliant stainless steel hardware is required.

Installation Notes

Install and remove circuit board standoffs with the appropriate hex wrench or nut driver sized for 0.25 inch flats. De-energize and discharge all circuits before servicing any control board or panel assembly. Avoid overtightening, as excessive torque can crack PCB mounting holes or damage the board substrate. Installation should follow applicable NEC guidelines when used inside listed electrical enclosures.