Catalog Stanley Supply, Inc. Shopping Cart (0) Quotes (0) Express Ordering All Categories > Security Products > Stainless Steel Socket Security Screws > Socket Security Machine Screws > Flat Head Socket Machine Screws > 5/16-18 Flat Head Stainless Socket Machine Screws > Advanced Search Advanced Search in 5/16-18 Flat Head Stainless Socket Machine Screws Specifications Size 5/16-18 x 1"5/16-18 x 1/2"5/16-18 x 3/4" Clear Cancel Advanced Search