PennEngineering® Blind Threaded Standoffs for Installation into Stainless Steel - Type BSO4 - Unified BSO4-6440-28

BSO4™ blind threaded standoffs provide internally threaded mounting for stacking or spacing applications in stainless steel sheets as thin as .040". They install permanently with a squeeze in properly sized holes, leaving the reverse side flush and smooth. These standoffs are made from precipitation-hardened stainless steel for corrosion resistance matching 300 series stainless steel and are designed for use in sheets with hardness HRB 90 / HB 192 or less. The part is part of the BSO4 series, which is compatible with sheets of minimum thickness .040" and offers threaded barrel ends to minimize required screw length. All dimensions and performance characteristics follow the BSO4 series specifications, as the exact variant BSO4-6440-28 is not distinctly detailed beyond the series profile.