Electro Hardware 1313M12F21256 Hex Standoff 2-56 0.5 in

Product Description

The ELECTRO HARDWARE 1313M12F21256 is a male-female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from steel with a zinc-plated finish meeting ASTM B633 Type 1 and QQ-S-633 standards, this standoff delivers reliable corrosion resistance and consistent thread engagement. It features a 2-56 thread size with a hex body measuring 3/16 inches across the flats and an overall length of 0.5 inches. The male thread length is 5/32 inches and the female thread depth is 3/16 inches, with a length tolerance of -0.005 to 0.005 inches for tight fitment in precision assemblies. Electronics assemblers, PCB technicians, and electrical panel builders install this type of fastener as part of board-level hardware stacking configurations.

This standoff is suited for use in residential and commercial electronic control assemblies, HVAC control boards, industrial PCB stacking applications, and any low-voltage circuit board mounting scenario requiring accurate, repeatable standoff height. The 2-56 thread size is common in small-format circuit board assemblies where compact spacing and reliable thread engagement are required. It is sold and packaged individually, making it easy to source as a replacement or supplement to existing hardware kits.

Key Features

• Male-female hex configuration for stackable PCB spacing in electronic assemblies
• 2-56 thread size with 5/32 inch male thread length and 3/16 inch female thread depth
• Steel construction with zinc-plated finish per ASTM B633 Type 1 and QQ-S-633
• Hex body shape at 3/16 inches across the flats allows wrench or nut driver installation
• Overall length of 0.5 inches with a tight length tolerance of -0.005 to 0.005 inches
• Individual package quantity suitable for single-unit replacement use

Compatibility

Designed as an OEM-style replacement or supplemental hardware for circuit board assemblies requiring a 2-56 thread, 0.5 inch male-female hex standoff with a zinc-plated steel finish.

Installation Notes

Installation is performed by electronics assemblers or technicians using a small nut driver or hex wrench matched to the 3/16 inch across-flats hex body. Always de-energize and discharge any boards or assemblies before installing or removing standoffs. Avoid over-torquing the 2-56 thread, as fine threads in this size range are susceptible to cross-threading and stripping. Follow applicable workmanship standards for PCB hardware installation when working in regulated or warranty-sensitive assemblies.