JJ Fasteners is a full service metal and fastener shop. Mill Specs-Monel-Stainless Brass-Alloy-GR5-GR8-Weld Studs-Cable Hangers-Metric Masonry Anchors-Drill Bits & More - Industrial Supplies. Discover a fastener store and machine shop with a full-line of finished products for all your personal and professional needs with JJ Fasteners, Inc. Since 1983 we have offered professional experience and a steadfast commitment to quality. Our family-owned-and-operated business offers the finest quality retail fasteners for wide range of materials and situations. Professional Grade Products. At JJ Fasteners, Inc., we work hard to provide the quality hardware you deserve at a competitive price. Fasteners are sold in pre-packaged assortments and selections which includes, Nuts, bolts, washers, screws, Concrete Fasteners, carriage Bolts, machine Screws, hex Head Cap Screws and more.