Available now

Stop vague harness RFQs from wasting your samples and deposits

A buyer-side toolkit for hardware startups, EMS buyers, and overseas procurement teams who need small-batch custom cable & wire harnesses — and keep getting incomparable quotes, swapped connectors, and deposit pressure before anyone agrees what “good” means.

Get free RFQ Starter Buy Harness Kit · $49 See what’s inside

Available now · $49 one-time digital download. Get the kit → No factory contact list. No fake “save $10k” claims.

Who it’s for

Built for

  • Hardware startup founders and PMs
  • EMS / contract-manufacturing buyers
  • Overseas teams sourcing low-volume custom harnesses (often from China)

Not built for

  • Buyers who only need Alibaba chat scripts
  • Anyone wanting a supplier contact list (those go stale)
  • Teams that need the full IPC/WHMA-A-620 standard (buy that from IPC)

What’s inside

A practical Markdown/PDF pack you reuse on every harness RFQ.

  1. Customize vs off-shelf decision tree — know when not to open a custom RFQ
  2. Spec checklist — AWG, insulation, connectors, pinout, shielding, environment, tests
  3. 5 English RFQ email templates — first contact, full RFQ, incomplete-quote follow-up, sample order, ECO
  4. Supplier scorecard — weighted scoring, factory-vs-trader signals, quality red flags
  5. Sample & payment milestones — qualification samples before production money moves
  6. Scam & quality failure patterns — bait pricing, material swaps, revision amnesia
  7. One-page “send this to a supplier” pack — same requirements to 3–5 vendors
  8. Appendices — blank scorecard, quote comparison grid, glossary, engineer parking lot

What it helps you do

  • Force comparable quotes — same revision, same test scope, same substitution rules
  • Fill the blanks before suppliers invent assumptions — harness-specific checklist
  • Score capability, not only unit price — weighted scorecard
  • Stage payment after a qualification sample — with test records
  • Stay vendor-neutral — keep the method when suppliers change

Free teaser — redacted RFQ snippet

Full templates ship with the paid kit. This excerpt shows the tone and structure only — placeholders are redacted so it is not a copy-pasteable RFQ.

Template B — Formal RFQ (excerpt, redacted)
Subject: Formal RFQ — ████████ Rev █ — quote tiers 25/100/500

Hello ████████,

Please provide a formal quotation for the harness in the attached pack.
All suppliers are receiving the same pack and revision.

TECHNICAL
- Part: ████████ Rev █
- Attachments: drawing, BOM, pinout
- Workmanship: IPC/WHMA-A-620 Class [2] unless noted
- Required tests: continuity, shorts, pinout, hipot — verify values with engineer
- Substitutions: not allowed without written approval

COMMERCIAL — please quote all lines
- Qty tiers: 25, 100, 500 pcs
- Sample: 2 pcs, priced separately, with full test records
- NRE / tooling: itemize; state tooling ownership
- Unit price alone is not enough for comparison

[Full commercial block, payment gates, and four more templates
are in the complete kit.]

Honest scope

No fabricated case studies. No fake savings claims. Not legal, customs, or engineering sign-off. Where a number must come from your engineer (ampacity, hipot, pull force, UL path), the kit says verify with engineer.

It will not guarantee a good supplier. It reduces self-inflicted RFQ failures: unclear specs, incomparable quotes, and paying production money before a sample exists.

Free RFQ Starter (email optional)

One sharp page: 5 fields that make harness quotes useless + a mini 3-quote comparison scorecard. Useful alone. Teases the paid kits — not a truncated dump.

Download the free PDF

Leave an email if you want follow-ups on new checklists. Or skip the form and download the PDF directly.

Direct download (no email)

Form fields: email (required), name, interest, honeypot bot-field. Netlify form name: lead-magnet. After submit → /free-thanks.html with PDF link + soft kit CTA. Contact: allanyang@mail.grokbot.com

Shop

Wire Harness Sourcing Kit

$49 · Spec checklist, English RFQs, scorecard

Buy

PCB Fab & Assembly RFQ Kit

$49 · Gerber/BOM pack, fab & PCBA RFQs

Buy

Connector PN Cheat Sheet

$29 · PN discipline, no-sub rules, sealed-cavity checks

Buy

Sample & Payment Milestone Pack

$29 · Sample scopes, deposit/balance gates, doc pack

Buy

Bundle

$79 · PCB + Harness kits (save vs $98)

Buy bundle

Start free, upgrade when ready

Grab the free RFQ Starter first. Paid kits add full English RFQ templates, scorecards, and sample/payment gates.

Free RFQ Starter Shop paid kits

Questions: allanyang@mail.grokbot.com

FAQ

Is this a list of Chinese harness factories?

No. Contact lists rot. You get a reusable buyer method, templates, and scorecards.

Do I need to speak Chinese?

No. All templates are English. Many harness exporters quote in English.

Is this the IPC/WHMA-A-620 standard?

No. It references IPC/WHMA-A-620 as workmanship language buyers should ask about. Buy the official standard from IPC if you need full acceptance criteria.

Can I use this outside China sourcing?

Yes. The RFQ discipline works for any region; examples assume overseas buyers talking to China-based makers because that is a common pain case.