🟡 BRASS
Brass Machining & Screw Machine Suppliers in Cleveland, OH
Brass is the productivity metal, and in Cleveland it lives mostly in the screw-machine and forging shops that supply valves, fittings, connectors, and fluid-power components. C360 free-machining brass sets the benchmark for machinability, while C377 forging brass and C260 cartridge brass cover the rest. This page covers how to source brass work in the region and the lead-free and quality questions that matter.
ISO 9001ISO 14001ISO 13485
Cleveland's Screw-Machine and Fitting Heritage
Brass and the multi-spindle screw machine grew up together, and Northeast Ohio's manufacturing base has a long history of high-volume turned-brass production for valves, fittings, plumbing components, and electrical hardware. The same region that built heavy steel also built a deep bench of precision turning and screw-machine shops, and brass is the material those shops run fastest and most profitably. For a buyer needing thousands of machined brass parts, this is a market with real depth in exactly the equipment and experience that work requires.
Local demand concentrates in fluid-power and plumbing (valve bodies, fittings, manifolds), electrical (connectors, terminals, grounding hardware), and general industrial components for the automotive and heavy-equipment supply chains. Brass earns its place through a combination of machinability, corrosion resistance, and good electrical conductivity, so the parts tend to be functional fittings and connectors made in volume. A supplier in this space competes on cycle time and consistency, and the established Cleveland screw shops have decades of process refinement behind them.
Grade Selection and the Lead-Free Question
C360 free-machining brass is the reference standard for machinability, its machinability rating is the 100% benchmark other metals are measured against, thanks to lead added for chip breaking. It dominates high-volume turned parts. C377 is the forging grade for hot-forged valve bodies and fittings. C260 cartridge brass offers better cold formability and corrosion resistance where forming or appearance matters. The grade choice usually follows the manufacturing process: turning points to C360, forging to C377.
The critical modern wrinkle is lead content. Traditional free-machining brass contains lead, and for any part that contacts potable water, regulations (the federal Safe Drinking Water Act's lead-free requirements and standards like NSF/ANSI 372) mandate low-lead or lead-free alloys such as C69300, C87850, or other no-lead brasses. These lead-free grades machine differently and often less easily than C360, so a shop has to have real experience running them. If your part touches drinking water, specify a compliant lead-free alloy and require certification of compliance, because this is a regulatory requirement with legal teeth, not a preference. A Cleveland supplier serving plumbing customers will know the lead-free landscape; one that only does industrial work may not.
Sourcing Checks and Records
Filter app.mfgbase.com for screw machining or machining with brass capability, and the certification your application needs, ISO 9001 baseline, ISO 13485 if the part serves a medical or fluid-handling device, ISO 14001 for environmental tracking. Confirm the certificate scope and currency directly. Require mill certs confirming the alloy and, for lead-free potable-water parts, certification of compliance with the applicable lead-free standard.
For high-volume screw-machine work, ask about the shop's process-control and inspection approach, SPC on critical dimensions, in-process gauging, and how they handle the inevitable tool wear over a long run. Red flags include no documented lead-free compliance on a potable-water part, inconsistent thread quality across a lot, and an inability to tie parts back to a material heat. For plated or finished brass, confirm the plating or coating chain and its certification. A serious volume brass shop will show you its inspection data and its process for holding tolerance across a run of tens of thousands of parts, not just a first-article report.
Frequently Asked Questions
C360 free-machining brass is by far the most common, since it sets the 100% machinability benchmark and is the default for high-volume turned and screw-machine parts like fittings, valve components, and connectors. C377 forging brass is widely used for hot-forged valve bodies and fittings. C260 cartridge brass appears where cold formability or better corrosion resistance and appearance matter. For potable-water applications, lead-free grades such as C69300 (eco-brass) or C87850 are increasingly common and legally required. The Cleveland screw-machine base stocks the standard grades and runs them in volume, so availability is rarely an issue for common alloys. The more important sourcing question is matching the grade to your manufacturing process and regulatory requirement: turning steers toward C360, forging toward C377, and any drinking-water contact mandates a certified lead-free alloy. Specify the alloy by CDA number and require the mill cert to confirm it, especially when lead content is regulated.
You need lead-free brass whenever a part contacts potable water, the federal Reduction of Lead in Drinking Water Act limits the weighted-average lead content of wetted surfaces to 0.25%, and products are typically certified to NSF/ANSI 372 for lead content and NSF/ANSI 61 for drinking-water system health effects. Traditional C360 free-machining brass contains far more lead than allowed for these applications, so you must specify a compliant lead-free alloy. To verify, require the supplier to provide material certification showing the alloy meets the lead-content limit and, where the finished product needs it, certification to the relevant NSF/ANSI standards. Don't accept a verbal assurance, this is a regulatory requirement with real legal and liability exposure for non-compliant plumbing products. When sourcing in Cleveland, choose a supplier with genuine experience running lead-free brass, since these alloys machine differently than leaded C360 and a shop without that experience may struggle with tool life and surface quality. Put the lead-free requirement and certification explicitly on the purchase order.
The challenge in high-volume brass turning is consistency across thousands of parts as tooling wears and conditions drift. Capable Cleveland screw-machine shops manage this with statistical process control on critical dimensions, in-process gauging that catches drift before it produces scrap, scheduled tool changes based on wear data rather than failure, and bar-feed and coolant management that keeps cutting conditions stable. Brass's excellent machinability helps, it produces clean chips and predictable tool wear, but threads and tight-tolerance features still drift over a long run if the process isn't controlled. When sourcing volume work, ask to see the shop's SPC data and its approach to tool-life management, and request a first-article inspection plus a process-capability study (Cpk) on critical features. A shop that can only show you a single first-article report but has no in-process data has no real evidence it can hold the tolerance across the full lot. The established Cleveland brass shops compete precisely on this kind of documented run consistency, so it's a fair and revealing thing to ask for.
It depends on the application. Many brass fittings and connectors are used bare because brass already resists corrosion reasonably well, but plating is common for appearance (chrome or nickel on visible plumbing trim), improved electrical contact (tin or silver on connectors), or added corrosion protection in harsh environments. If your part needs plating, the spec, type, thickness, and plated areas, should be on the drawing and the purchase order, and it affects sourcing because you want a supplier that either plates in-house or has a traceable local plating relationship. Cleveland's manufacturing density means local plating capacity is available, keeping that subcontract a short move rather than a cross-country shipment. When sourcing, confirm the plating chain and require plating certifications with delivery. The common gap is a cleanly machined brass part with no plan for the finish it needs in service, so treat machining and finishing as a single sourced chain and verify the supplier can deliver both with proper documentation rather than handing you bare parts and a finishing problem.
Last updated: July 2026
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