Product Parameters
| Item | Specification |
|---|---|
| Material | Carbon Steel |
| Thread | Metric (M3–M16), Imperial (#4–5/8") |
| Surface | Chrome Plated (Decoration, Hard) |
| Head Style | Knurled, Flat, Wing |
| Application | Decorative, marine, food processing |
| MOQ | 50 pcs |
description
Chrome plated thumb screws provide the bright, mirror-like appearance of chrome with the hand-operated convenience of thumb screws. The chrome finish is not just decorative - it provides excellent corrosion resistance and surface hardness for thumb screws used in visible locations, marine environments, or food processing equipment. Decorative chrome on carbon steel is the most cost-effective approach - good appearance, adequate corrosion resistance for indoor and controlled environments. Hard chrome plating provides maximum wear resistance and corrosion protection, used in demanding marine and industrial applications where the thumb screw sees repeated use.
Decorative vs. Hard Chrome
Decorative chrome isthin coating over a copper underlayer - the standard for appearance applications. Hard chrome is thick and wear-resistant - the right choice for marine hardware and industrial equipment that sees repeated thumb screw cycling. If your application is visible and needs to look good, decorative chrome is sufficient. If the screw will be operated frequently in a harsh environment, specify hard chrome.
FAQ
Q1: MOQ?
A1: 50 pieces for standard thumb screws.
Q2: Chrome types?
A2: Decorative chrome (standard) and hard chrome (enhanced wear and corrosion resistance).
Q3: Materials?
A3: Carbon steel with chrome plating.
Q4: Thread sizes?
A4: Metric M3 through M16, Imperial #4 through 5/8 inch.
Q5: Head styles?
A5: Knurled (standard), flat, wing.
Q6: Applications?
A6: Decorative hardware, marine equipment, food processing, visible installations.
Quality is non-negotiable in precision manufacturing. Every component undergoes rigorous inspection at each stage of production.
- ISO 9001:2015 - Certified quality management system covering design, machining, and inspection
- Passivation / Electropolishing - ASTM A967 procedures for corrosion resistance
- Material Traceability - Heat number tracking from raw material to finished part
- First Article Inspection (FAI) - Full dimensional report included with every new order
From raw material to finished product, every step is controlled and documented:
- Material Preparation - CNC turning/milling to near-net shape
- Heat Treatment - Through-hardening or case-hardening for strength-critical parts
- Surface Preparation - Degreasing, acid cleaning, and surface activation
- Electroplating - Controlled bath process with thickness monitoring
- Sealing / Baking - Chrome sealing, anodize sealing, or hydrogen embrittlement relief baking
- Inspection - Coating thickness measurement, adhesion testing, and visual check
- Packaging - Protective interleaving, VCI packaging, and anti-tarnish wrapping
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