Screw and Key This RFQ was sourced on www.MFG.com in USA for Machine Security Screws Production of a Screw and Key (Machine Security Screws). Approximately 19.1 mm OD x 30.4 mm long. Buyer needs quote on screw and a key to unscrew the screw. Quote based on drawing and also on same head type but with .25 x20 thread. Material is Carbon Steel with Zinc coating or any options the Supplier can also quote on. The component needs to be rust resistant as much as possible. It will be used near water. 4 screws to 1 key so 1200 screws 300 keys. Buyer Information Industry Construction City/Region El Cajon, California Country USA RFQ RFQ Number 669689 Material Carbon Steel Technical Specifications Category Machine Security Screws Dimensions 30x19 mm Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Machine Security Screws: Machine security screws are security fasteners used in machine assemblage applications. Security fasteners, also called tamper resistant fasteners, are used to prevent fastener tampering or removal.