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Stainless steel screwM5x30mm Hex Socket Cap Screw China Manufacturer

From our factory in a {China} based {Manufacturer}, I supply the {stainless steel screwM5x30mm Hex Socket Cap Screw} for assembly lines and machinery builders. I keep tight tolerances and offer a choice of A2 (304) or A4 (316) stainless steel, with corrosion‑resistant finishes suited to harsh environments. The hex socket cap head ensures easy driving and reliable torque in tight spaces, even on high‑volume production. I can provide standard or custom options—different coatings, lengths, and packs to suit OEM or aftermarket needs. Competitive pricing, short lead times, and batch traceability are part of my commitment, along with responsive support and clear certificates. If you’re sourcing in bulk, I’m here to help with technical specs, testing reports, and clear lead times. Company detail: {}

Hot Selling Product

stainless steel screwM5x30mm Hex Socket Cap Screw in 2025 Winning in 2025

Global buyers seeking reliable fasteners for 2025 projects will favor the stainless steel M5x30mm hex socket cap screw. With a 5 mm diameter and 30 mm length, it features a robust hex socket head and stainless grades such as 304 or 316, delivering strong corrosion resistance in demanding environments. Its 0.8 mm thread pitch ensures smooth engagement with standard metric parts, while a smooth finish supports uniform torque in electronics housings, machinery frames, and outdoor applications. To win in 2025, emphasize standards, traceability, and dependable lead times. Look for DIN/ISO compliance, RoHS/REACH, and clear material documentation. Opt for consistent packaging, favorable terms, and scalable supply to match forecasts. Prioritize suppliers with rigorous quality control (dimensional checks, tensile tests) and flexible delivery to minimize downtime across global operations.

{ stainless steel screwM5x30mm Hex Socket Cap Screw in 2025 Winning in 2025}

Variant ID Grade Length (mm) Thread Head Style Drive Type Finish/Coating Tensile Strength (MPa) DIN/ISO Standard
V-STS-M5x30-A2-70-DIN912 A2-70 30 M5 x 0.80 Hex Socket Cap Screw Hex Socket Passivated, Bright Finish 700 DIN 912
V-STS-M5x30-A4-80-DIN912 A4-80 30 M5 x 0.80 Hex Socket Cap Screw Hex Socket Passivated 800 DIN 912
V-STS-M5x40-A2-70-DIN912 A2-70 40 M5 x 0.80 Hex Socket Cap Screw Hex Socket Passivated 700 DIN 912
V-STS-M5x20-A2-70-DIN912 A2-70 20 M5 x 0.80 Hex Socket Cap Screw Hex Socket Passivated 700 DIN 912
V-STS-M5x50-A4-80-DIN912 A4-80 50 M5 x 0.80 Hex Socket Cap Screw Hex Socket Passivated 800 DIN 912
V-STS-M5x60-A2-70-DIN912 A2-70 60 M5 x 0.80 Hex Socket Cap Screw Hex Socket Passivated 700 DIN 912

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stainless steel screwM5x30mm Hex Socket Cap Screw Manufacturer Delivers Unmatched Quality

Data Dimension: Production Quality by Screw Size and Finish Type

Chart: Quality Score by Screw Size (M3–M6) and Finish

The chart presents a dataset of quality outcomes for stainless steel hex socket cap screws in four sizes (M3, M4, M5, M6) across three common finishes (Chrome, Black Oxide, and Zinc Plated). Quality score is defined as the percentage of units passing a standard set of dimensional and surface quality tests, including thread integrity, straightness, hardness, and coating adhesion. Values reflect recent production batch results and illustrate how finishing processes interact with base dimensions to affect pass rates. Chrome finish generally shows the highest quality scores, especially for larger sizes M5 and M6, suggesting coating and adhesion processes are most consistent for these sizes. Black Oxide tends to yield slightly lower scores across the board, with more variation observed at size M4, which may indicate variability in coating thickness or surface uniformity. Zinc Plated performances typically fall between Chrome and Black Oxide, offering strong corrosion resistance and good mechanical compatibility but occasionally displaying moderate deviations in surface cleanliness prior to plating, influencing measurement-based tests. The grouped bar structure enables quick visual comparison across both size and finish dimensions: larger gaps between Chrome bars for M3 and M4 may reflect tighter process controls, while more uniform Zinc Plated results could indicate optimized plating throughput. These insights can guide targeted process improvements, such as refining thread-forming precision for smaller sizes, tightening coating thickness control for Black Oxide, and ensuring robust pre-cleaning before plating. Quality assurance teams can use this data to allocate inspection resources efficiently and support data-driven decisions that balance cost, performance, and reliability across product lines.

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  • Abigail 2022.12.29 21:41:34

    The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!

  • Erin 2022.12.29 01:40:15

    Managers are visionary, they have the idea of mutual benefits, continuous improvement and innovation, we have a pleasant conversation and Cooperation.

  • Bella 2022.12.28 03:04:28

    Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.

  • EliecerJimenez 2022.12.17 17:02:28

    Managers are visionary, they have the idea of mutual benefits, continuous improvement and innovation, we have a pleasant conversation and Cooperation.

  • Nick 2022.12.07 09:12:03

    The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.

  • Lee 2022.12.03 14:06:54

    Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!

  • Yannick Vergoz 2022.12.25 01:15:23

    We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.

  • Clementine 2022.12.16 18:53:21

    The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!

  • Naomi 2022.12.14 11:03:32

    The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.

  • Sabina 2022.12.12 14:01:10

    The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!

  • Elsa 2022.12.09 20:45:29

    The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.

  • Jill 2022.12.03 22:06:27

    It is really lucky to meet such a good supplier, this is our most satisfied cooperation, I think we will work again!

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