STANDOFF, NYLON66, HEX M-F, 4-40/3.18MM; Standoff Material:Nylon 6.6 (Polyamide 6.6); Thread Size - Metric:-; Thread Size - Imperial:4-40; Standoff Type:Hex Male-Female; Body Length:22.23mm; Overall Length:7.94mm; Product Range:- RoHS Compliant: Yes