Stop Nut This RFQ was sourced on www.MFG.com in USA for Heavy Hex Nuts Buyer is in search of a stop nut with nylon insert 1"-8 monel per QQ-N-281 CLASS A or B. Buyer Information Industry Government Military City/Region Honolulu, Hawaii Country USA RFQ RFQ Number 425249 Material Laiton Technical Specifications Category Heavy Hex Nuts Dimensions 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. Heavy Hex Nuts: Hex nuts are heavy industrial strength six sided nuts used for a wide variety of structural and industrial applications.