Newco

About Newco Products

Since its founding in 1985, Newco Products has built its reputation on a straightforward mission: to supply specialty, hard-to-find fasteners and related hardware with uncompromising quality. Founded to fill the need for specialty quality fasteners and hard-to-find products, the company has been delivering on that promise for decades. Based in Chatsworth, California, Newco Products serves automotive enthusiasts, restoration specialists, OEM manufacturers, marine professionals, and hobbyists who need the right fastener — not just any fastener.

A Fastener Catalog Built for Precision Applications

What sets Newco Products apart is the sheer breadth and specificity of its inventory. Founded in 1985 to fill the need for quality specialty fasteners, Newco has over the years expanded its inventory to supply customers with thousands of products imported from around the world. Rather than stocking only common hardware-store items, Newco digs deep into international fastener standards — covering DIN/European Metric, JIS/Japanese, JCIS Metric Micro Screw, and USA Standard specifications.

Newco Products offers a large inventory of J.I.S. Fasteners, Nuts, and Bolts at wholesale prices — the industry standard for many Japanese automobiles, motorcycles, jet skis, and more. This commitment to sourcing fasteners to original equipment specifications makes Newco especially valuable to classic car restorers and import vehicle specialists who cannot accept substitutions.

Newco is recognized as one of the top largest stocking warehouses of Cohline Products, JIS Fasteners, JCIS Micro Screws, and Metric Sealing Washers in the United States. That level of inventory depth is rarely found outside of major industrial distributors, yet Newco makes these products accessible to individual consumers and resellers alike.

Core Product Categories

Newco Products' catalog spans several essential hardware categories. Their Bolts lineup includes metric hex bolts, flange bolts, shoulder bolts, and specialty items like lightweight aluminum 933-series hex bolts that are notoriously difficult to source elsewhere. Complementing these are Nuts in an equally extensive range — from hex jam nuts and cap nuts to locking flange nuts and nylon insert lock nuts, covering both metric and SAE specifications.

Fastener assemblies are only as reliable as the hardware that holds them together, which is why Newco's Washers category is so well-stocked. From machine screw washers and fender washers to split lock and curved wave spring washers, the right washer is as important as the bolt it accompanies. For sealing-critical applications in engines, hydraulic systems, and plumbing connections, Newco also carries Seal Rings & Washers — including their well-known line of metric sealing washers used throughout the automotive and marine industries.

Rounding out the lineup, Newco's Gaskets & Seals offerings address the need for reliable sealing solutions across a variety of mechanical assemblies, ensuring fluid containment and leak-free performance in demanding environments.

Who Relies on Newco Products?

Newco Products serves a remarkably diverse customer base. The brand is active in both the automotive aftermarket and OEM automotive segments. Restoration enthusiasts rebuilding European classics rely on DIN-spec fasteners; Japanese import mechanics depend on JIS hardware; and marine and transit procurement professionals turn to Newco for hard-to-source specialty items. Newco regularly carries in stock some of the most difficult items to find from around the world. Whether you need a single specialty bolt or a bulk wholesale order, Newco Products has the inventory and expertise to deliver.