Black Oxide Machine Screws for OEM & Suppliers | Durable Fasteners

I’m your reliable partner for black oxide machine screws that stand up to tough assemblies. I offer a wide range of sizes, thread types, and head styles, all finished with a durable black oxide coating for a low glare look and dependable surface protection. As an OEM-focused supplier and trusted partner among the Suppliers of fasteners, I tailor every order to your exact specs—material grade, length, drive type, and finish—so you get precisely what your project requires. I keep strict QA with traceable lots and clear documentation, plus dependable on-time delivery to keep your production lines moving. Whether you’re designing new equipment or stocking a regional supply, my inventory, competitive pricing, and flexible MOQs make sourcing effortless. These screws perform in automotive, industrial machinery, electronics, and general assemblies. Reach out for fast quotes and a smooth, transparent procurement process that keeps you ahead of schedule.

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black oxide machine screws For the Current Year Your Trusted OEM Partner

Black oxide machine screws offer strong steel performance with a cost‑effective finish that reduces glare and enhances corrosion resistance. Suitable for automotive, electronics, and machinery, these fasteners cover common metric and imperial sizes, with head styles from socket cap to hex. The finish accepts lubrication well, resists galling, and provides a uniform dark appearance that hides minor surface imperfections. For OEM production, consistent supply of tight-tolerance screws is essential. To meet global procurement needs this year, a trusted OEM partner delivers scalable manufacturing, rigorous quality control, and flexible logistics. Options include material grades, thread standards, lengths, drive types, plating thickness, and packaging. Lead times, MOQs, and traceability can align with just-in-time or bulk plans, backed by documentation and international standards. Translate design intent into ready-to-ship components for reliable performance across markets.

black oxide machine screws For the Current Year Your Trusted OEM Partner

Part Number	Size (mm)	Thread Pitch (mm)	Length (mm)	Head Type	Drive Type	Material	Finish	Grade	Tensile Strength (MPa)	Standards	Salt Spray (h)	Applications
BO-M4x0.7-20	M4	0.7	20	Pan Head	Phillips	Steel	Black Oxide	8.8	800	ISO 898-1; DIN 6914	500	Machinery assembly
BO-M5x0.8-25	M5	0.8	25	Hex Socket Cap	Allen	Steel	Black Oxide	10.9	900	ISO 898-1; DIN 912	720	Automotive assembly
BO-M6x1-30	M6	1.0	30	Button Head	Hex	Steel	Black Oxide	8.8	700	ISO 898-1	480	Machinery assembly
BO-M3x0.5-12	M3	0.5	12	Pan Head	Torx	Steel	Black Oxide	8.8	700	ISO 898-1; DIN 912	450	Electronics
BO-M8x1.25-40	M8	1.25	40	Flat Head	Phillips	Alloy Steel	Black Oxide	12.9	1080	ISO 898-1; DIN 7982	1000	Heavy machinery
BO-M10x1.5-50	M10	1.5	50	Socket Head	Hex	Steel	Black Oxide	10.9	1040	ISO 898-1; DIN 912	640	Hydraulic assemblies
BO-M5x0.8-18	M5	0.8	18	Pan Head	Phillips	Steel	Black Oxide	8.8	640	ISO 898-1; DIN 933	480	Control panels
BO-M6x1-12	M6	1.0	12	Flat Head	Torx	Steel	Black Oxide	8.8	600	ISO 898-1; DIN 933	450	Electronics enclosures
BO-M5x0.8-40	M5	0.8	40	Pan Head	Phillips	Steel	Black Oxide	10.9	970	ISO 898-1; DIN 7982	600	Automotive

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black oxide machine screws Your End-to-End Solution From Concept to Delivery

数据维度标题：阶段 Lead Time 分布（天）

End-to-End Lead Time Distribution Across Production Stages

Explanation: This chart provides a data-driven view of end-to-end lead time across production stages for the manufacture of precision fasteners with a black oxide finish. The data dimension shown is the stage-specific lead time measured in days, with each bar representing the average duration spent in a given stage across a representative set of recent orders. The largest bar corresponds to the Machining stage, which dominates the overall lead time with an average around 10 days, reflecting tool changes, setup, and throughput constraints. Raw Material Sourcing also shows a considerable duration, about 7 days, indicating supplier lead times and material qualification efforts. Other stages such as Tooling & Setup and Assembly & QC are mid-range, suggesting potential improvements through parallel processing, better forecasting, and standardized tooling. Surface Treatment (black oxide) is relatively shorter in this dataset but remains critical for finish quality; consolidating batches or parallel processing can further trim time. Packaging & Delivery is the fastest stage, demonstrating efficient finalization and logistics integration. The chart uses a consistent measurement window and assumes a relatively uniform product family; however, real-world data will vary with order size, batch consolidation, and engineering changes. These insights support a data-driven continuous improvement program: target Machining throughput improvements (automation, multi-spindle setups), apply design-for-manufacturability to shorten concept time, and strengthen supplier collaboration to trim sourcing times. Actionable steps include implementing parallel work streams where possible, adopting setup-reduction techniques, and aligning scheduling with demand. This framework can extend to other fastener families and finishes to improve reliability and delivery promises. Limitations include sample size, potential seasonality, and lack of variance information.

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Alberta 2022.12.27 15:32:06
We always believe that the details decides the company's product quality, in this respect, the company conform our requirements and the goods are meet our expectations.
Caroline 2022.12.20 16:38:37
This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
Hulda 2022.12.19 14:57:17
We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!
Sandy 2022.12.08 23:31:25
The product manager is a very hot and professional person, we have a pleasant conversation, and finally we reached a consensus agreement.
Lorraine 2022.12.05 23:11:21
Hope that the company could stick to the enterprise spirit of Quality, Efficiency, Innovation and Integrity, it will be better and better in the future.
Lynn 2022.12.04 02:31:55
The company's products can meet our diverse needs, and the price is cheap, the most important is that the quality is also very nice.

Octavia 2022.12.27 13:48:31

This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
Raymond 2022.12.25 17:48:01

The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
Mildred 2022.12.10 14:05:36

We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!
Antonio 2022.12.05 17:36:28

Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
Kama 2022.12.05 02:30:16

Customer service staff and sales man are very patience and they all good at English, product's arrival is also very timely, a good supplier.
Poppy 2022.12.02 22:30:50

The company's products very well, we have purchased and cooperated many times, fair price and assured quality, in short, this is a trustworthy company!