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Site map
Every page on this site, on one page, grouped by topic.
This page indexes the whole site. Every link is shown as a plain link — nothing is hidden behind a tab, an accordion or a “load more” button. Use the jump menu below to go straight to a group.
Pages listed here: 216
Company pages 17
Industries we serve 12
Standards reference 26
- Standards reference
- ISO 898-1 — ISO 898-1 — property classes for carbon and alloy steel bolts, screws and studs
- ISO 898-2 — ISO 898-2 — nuts with specified property classes and proof load values
- ISO 4042 — ISO 4042 — electroplated coating systems for fasteners, and hydrogen embrittlement relief
- ISO 2081 — ISO 2081 — electroplated zinc coatings on iron and steel with supplementary treatments
- ASTM B633 — ASTM B633 — electrodeposited zinc on iron and steel: SC1–SC4 and the Types
- ASTM F1941 / F1941M — ASTM F1941 / F1941M — electrodeposited coatings on threaded fasteners
- ISO 10683 — ISO 10683 — non-electrolytic zinc flake coating systems for fasteners
- ISO 15330 — ISO 15330 — preloading test for the detection of hydrogen embrittlement
- DIN 50942 / ISO 9717 — DIN 50942 and ISO 9717 — phosphate conversion coatings on metals
- MIL-DTL-16232 — MIL-DTL-16232 — heavy phosphate coatings with supplementary oil
- ISO 9227 / ASTM B117 — ISO 9227 and ASTM B117 — neutral salt spray (NSS) testing
- ISO 6507 / ISO 6508 — ISO 6507 and ISO 6508 — Vickers and Rockwell hardness testing
- ISO 2639 — ISO 2639 — determination of effective case depth after carburizing
- ISO 3497 — ISO 3497 — coating thickness measurement by X-ray spectrometric methods
- ISO 3506 — ISO 3506 — property classes for corrosion-resistant stainless steel fasteners
- JIS B 1051 — JIS B 1051 — the Japanese property-class standard for carbon and alloy steel fasteners
- SAE J429 — SAE J429 — inch fastener grades 2, 5 and 8, and how they sit next to a metric class
- ISO 965 — ISO 965 — metric thread tolerances 6H, 6g, 6e and 6G, and where the room for plating comes from
- DIN 50979 — DIN 50979 — the German designation system for zinc and zinc-alloy coatings with Cr(VI)-free passivation
- มอก. (TIS) — มอก. (TIS) — the Thai national standards that touch fasteners and coatings, and how to check a มอก. claim
- ASTM F606 / F606M — ASTM F606 / F606M — how fastener mechanical properties are actually measured
- DIN 267 — DIN 267 — the German technical delivery conditions series: which parts are withdrawn, which are still in force
- DIN 50938 — DIN 50938 — black oxide (Brünieren) on iron and steel, and what the black finish really is
- MIL-DTL-13924 — MIL-DTL-13924 — reading a defence black oxide callout and turning it into an order
- ISO 18203 — ISO 18203 — determination of the thickness of surface-hardened layers
Defect troubleshooting 13
- Defect troubleshooting
- Hydrogen embrittlement — delayed fracture after plating
- Decarburization — surface carbon loss after heat treatment
- Quench cracking
- Soft spots and incomplete hardening
- Distortion after heat treatment — bend, ovality, pitch drift
- Low hardness after tempering
- Over-tempering — strength lost in the tempering stage
- White rust on zinc-plated parts
- Early red rust on plated fasteners
- Blistering of the zinc coating
- Poor phosphate adhesion — coating rubs off, paint lifts
- Thread gauge failure after plating
Steel grades 14
Comparison guides 16
- Metal Finishing and Material Comparisons
- S45C vs SCM440: which steel should you harden?
- Black oxide vs phosphate: which finish for screws, nuts and bolts?
- Zinc plating vs Dacromet: which coating for screws and bolts?
- Grade 8.8 vs 10.9 vs 12.9 bolts: what actually differs?
- Case hardening vs through hardening: which one for screws and bolts?
- Annealing vs tempering vs normalizing: which one does your part need?
- Carbonitriding vs carburizing: which case-hardening for fasteners?
- Barrel plating vs rack plating: how small fasteners are actually plated
- Quenching vs tempering: two halves of one process
- SCM435 vs SCM440: one alloy step apart, and it shows
- Class 10.9 vs 12.9: what you gain, and what you take on
- Zinc plating vs hot-dip galvanizing: which one does your fastener need?
- Zinc phosphate vs manganese phosphate: match the coating to the job it does
- Carburising vs nitriding: what a screw, nut or bolt actually gets
- Zinc plating vs zinc-nickel: when is the upgrade worth paying for?
Free engineering tools 12
- Free Tools
- Hardness Conversion HRC ↔ HV ↔ HB
- Which Steel Grades Harden — and How Far
- Fastener Weight Calculator — Bolts, Nuts, Washers
- Finishing Specification Builder for Purchasing and QC
- Salt Spray Test Plan Builder
- Coating thickness → thread fit (GO/NO-GO)
- Hydrogen Embrittlement — is baking required?
- Bolt Tightening Torque & Proof Load
- Thread Engagement Length
- Bolt Size Estimator (from load)
- Bolt Property Class — Mechanical Properties (ISO 898-1)
Knowledge centre 51
- Knowledge Center
- Heat Treatment & Hardening Explained
- Case Hardening: Carburizing, Nitriding & Carbonitriding
- What Is HRC? Metal Hardness HRC, HV, HB with Conversion Table
- How Cr3+ Zinc Plating Protects Against Rust
- Metal Coloring: Black Oxide, Zinc Colors and Anodizing
- Phosphate Coating: Zinc vs Manganese
- Salt Spray Test (ASTM B117) — How to Read It
- Fastener Steel Grades: S45C, SCM435, SUS304
- Hydrogen Embrittlement and Baking
- Choosing the Right Finish for Screws, Nuts and Bolts
- How Hard Can SCM440, SCM435 and S45C Get? Choosing a Steel Grade
- Why Parts Warp After Hardening—and How to Prevent It
- What Is Induction Hardening, and When to Use It
- Annealing vs Normalizing vs Tempering: What Is the Difference?
- Decarburization: The Invisible Loss of Surface Carbon in Hardening
- Zinc Plating Colour Chart: White, Blue, Yellow, Rainbow, Black, Green
- How Long Does Zinc Plating Last? Salt-Spray Hours, Explained
- Best Rust Protection for Screws and Bolts: Zinc vs Phosphate vs Black Oxide
- RoHS and Cr6-Free: Why Exports Need Trivalent Zinc Plating
- Phosphate Primer Before Paint: Why Paint Adheres Better
- Measuring Coating Thickness: How It Is Done and Why It Matters
- Effective Case Depth: 550 HV, ISO 2639 and ISO 18203:2026 Explained
- How to Read a Metal Test Certificate
- Microstructure Analysis: Metallography Steps and How to Read Steel Phases
- Bulk Plating for Small Parts: Minimum Order, Lead Time, Nationwide Shipping
- Preparing Parts Before Plating: A Guide for Fastener Makers (OEM)
- Automotive Metal Finishing: The Standards and Finishes OEMs Expect
- ISO 9001 in a Plating Shop: How It Affects Quality
- Zinc Plating vs Hot-Dip Galvanizing vs Chrome: Which to Choose
- Steel Microstructure Explained: Ferrite, Pearlite, Austenite & Martensite
- Tempering & Temper Colors of Steel Explained
- How Much Does Heat Treatment (Hardening) Cost? Price Factors and How to Order
- How Much Does Zinc Plating Cost? Price Factors and How to Order
- What Is Blackening (Black Oxide / Black Phosphate)? Types, Benefits and Cost
- Which Hardening Method Should You Choose? A Comparison Guide
- Can Stainless Steel Be Hardened? And Does It Need Plating?
- Heat Treating Springs and Spring Steel — How It Works
- Does Plating Make Threads Loose or Tight? Coating Thickness and Thread Fit
- Heat-Treatment Defects: Troubleshooting Low Hardness, Cracks and Distortion
- How to Write a Zinc-Plating Specification: A Checklist for Purchasing and QC
- How to Specify Phosphate Coating: Zinc vs Manganese and an Inspection Checklist
- How to Specify Hardness on a Drawing: A Checklist for Engineers and Purchasing
- Hardening SUJ2 Bearing Steel (100Cr6 / AISI 52100) for Small Parts
- Which Process Reaches ~1000 HV Surface Hardness: Nitriding vs Carburizing
- Quench Media Guide: Oil vs Water vs Polymer for Fasteners
- Austempering and Martempering: Why Salt-Bath Routes Exist
- The Plating Line Step by Step: Degrease, Pickle, Activate, Plate, Passivate, Seal, Bake
- Mesh-Belt vs Batch Furnace: Why Bulk Fasteners Run Continuous
- Alkaline vs Acid Zinc Plating: Throwing Power, Thickness and Hydrogen Risk
- How to Choose a Plating Supplier in Thailand: Documents, Questions and the Trial Lot
News and articles 1
Case studies 4
Industrial estates 29
- Industrial Estates
- Bang Poo Industrial Estate
- Bang Phli (King Kaew)
- Sinsakhon Industrial Estate
- Amata City Chonburi
- Laem Chabang Industrial Estate
- Pinthong Industrial Estate
- WHA Eastern Seaboard (Hemaraj)
- Amata City Rayong
- Eastern Seaboard Rayong
- Rojana Industrial Park
- Hi-Tech (Ban Wa) Industrial Estate
- Navanakorn Industrial Zone
- Lat Krabang Industrial Estate
- Bang Chan Industrial Estate
- Praksa (Phraeksa), Samut Prakan
- Asia Industrial Estate Suvarnabhumi
- Map Ta Phut Industrial Estate
- Gateway City Industrial Estate
- Wellgrow Industrial Estate
- TFD Industrial Estate
- 304 Industrial Park, Prachinburi
- Kabin Buri Industrial Zone, Prachin Buri
- Northern Region Industrial Estate, Lamphun
- Rojana Industrial Park Chonburi (Bowin)
- Hi-Tech Kabinburi Industrial Estate, Prachin Buri
- Saha Group Industrial Park Kabinburi, Prachin Buri
- Bo Thong 33 Industrial Estate, Prachin Buri
- Chachoengsao Blue Tech City Industrial Estate
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