Nuts Cap NutsSizes: 4-40 → 1/2-13″Head Types:Open & Closed Coupling NutsSizes: All sizes Flange NutsSizes: 8-32 → 1/2-13″Head Types:Serrated & Plain Hex NutSizes: 0-80 → 1-1/2-6″Head Types:Finished & Machined Keps NutSizes: 4-40 → 3/8-16″ Nylon Insert NutSizes: 2-56 → 1-8″Head Types:All Types Square NutSizes: 2-56 → 1-8″ T-NutSizes: 4-40 → 3/8-16″Head Types:Prong, No Prong Toggle NutSizes: 6-32 → 1/2-13″ Wing NutSizes: 6-32 → 3/8-16″Head Types:Cold Forged & Stamped Back to Products Page Learn More Some items may not be listed on the website. Please send us an inquiry.