Set Screw Pricing
Comparing supplier cost per screw and per 5,000 units — M3×30 DIN916 cup-point
| Supplier | Price / Screw | Price / 5,000 |
|---|---|---|
| Chuanghe Fastener — CHEAlibaba · Trade Assurance · est. 2007 (17 yr) · M3×30 SS — RFQ pending | ~$0.055 | ~$275 |
| Dongguan Jinpeng HardwareAlibaba · Trade Assurance · IATF 16949 · $0.0585 listed tier @ 5k | ~$0.0585 | ~$292.50 |
| NINGBO YINZHOU SOKUN IMP EXP CO LTDBest confirmed quote | $0.0738 | $369.00 |
| amazon.ca — iexcell | $0.1386 | $693.00 |
| Shenzhen Huaxianglian Hardware Co., Ltd | $0.2200 | $1,100.00 |
🟢 Green = best price · ~ = research estimate for M3×30 at 5,000 pcs (get a supplier RFQ to confirm) · Sokun is the best confirmed quote
Compound Pricing — Canada vs US vs China warehouses
Tirzepatide (TZ30) & Retatrutide (RT30) from glp1forum vendors, in CAD. Each price is tagged by warehouse: Canada-direct (in-country, no customs), US, or China. A kit = 300 mg (30 mg × 10 vials); /10000 mg = kit × (10000 ÷ 300).
Tirzepatide · TZ30 — cheapest by warehouse
Retatrutide · RT30 — cheapest by warehouse
| Supplier | Product | Warehouse | Price CAD · kit |
/10000 mg CAD |
Status / notes |
|---|---|---|---|---|---|
| HHBHong Kong Himalaya Bio | TZ30 | China · US | $112US$80 | $3,733 | Cheapest China TZ30 |
| XTPXi'an Taiye Chemical | TZ30 | China · US | $112US$80 (sale) | $3,733 | T30 flash sale |
| WKCWalker Chemical | TZ30 | China · US | $126US$90 | $4,200 | — |
| APSAndy Peps Studio | TZ30 | China · US | $126US$90 | $4,200 | — |
| MEDShenzhen Maide Tech | TZ30 | China · US | $126US$90 | $4,200 | — |
| JEEPGuangzhou Jeep Biotech | TZ30 | China · US | $137US$98 | $4,567 | — |
| ABCAllen Biotech | TZ30 | China · US | $140US$100 | $4,667 | US warehouse |
| PTBPeptronix Biotech | TZ30 | China · US | $140US$100 | $4,667 | US wh · RT30 inbound |
| AURORAAurora Biotech | TZ30 | China · US | $147US$105 | $4,900 | US warehouse |
| ERPShanghai ERP Biotech | TZ30 | China · US | $152US$109 | $5,067 | — |
| QSTQingdao Saber Tech | TZ30 | China · US | $154US$110 | $5,133 | — |
| CHPChampion Peptide | TZ30 | China · US | $161US$115 | $5,367 | List price |
| MPSM-Peptides Science | TZ30 | Canada-direct | $168US$120 | $5,600 | In stock · ships within Canada, no customs. Order elsa@m-mps.com (verify kit unit). |
| PPHKPeptide Pole HongKong | TZ30 | China · US | $182US$130 | $6,067 | — |
| QYCQianyecao Biotech | TZ30 | China · US | $182US$130 | $6,067 | — |
| HPT (homo)Homopeptide · AU/China wh | TZ30 | China · US | $194US$139 | $6,467 | Your former TZ supplier |
| TFCTianjin Finder Chemical | TZ30 | China · US | $231US$165 | $7,700 | 2-kit deal (US$330 ÷ 2) |
| HHBHong Kong Himalaya Bio | RT30 | China · US | $238US$170 | $7,933 | Cheapest China RT30 |
| XTPXi'an Taiye Chemical | RT30 | CA advertised | $238US$170 | $7,933 | Advertises Canada wh but stock unconfirmed — verify (would undercut ERP) |
| SSYSSY Peptide · Marketplace | RT30 | CA advertised | $238US$170 | $7,933 | China/US/CA/AU network — Canada-local stock unconfirmed |
| ERPShanghai ERP Biotech | RT30 | Canada-direct | $278US$199 | $9,267 | In stock · US$25 flat local shipping. Only confirmed Canada-local RT30. |
| ERPShanghai ERP Biotech | RT30 | China · US | $278US$199 | $9,267 | Same price as its Canada wh |
| WKCWalker Chemical | RT30 | China · US | $280US$200 | $9,333 | — |
| APSAndy Peps Studio | RT30 | China · US | $280US$200 | $9,333 | — |
| PPHKPeptide Pole HongKong | RT30 | China · US | $280US$200 | $9,333 | — |
| WBSShanghai Wibson Biotech | RT30 | China · US | $280US$200 | $9,333 | US wh · Canada wh currently OOS |
| MPSM-Peptides Science | RT30 | China · US | $287US$205 | $9,567 | US wh (Canada has RT-15 only) |
| JEEPGuangzhou Jeep Biotech | RT30 | China · US | $291US$208 | $9,700 | — |
| XTPXi'an Taiye Chemical | RT30 | China · US | $294US$210 | $9,800 | Standing price (flash sale ~US$170) |
| MEDShenzhen Maide Tech | RT30 | China · US | $294US$210 | $9,800 | — |
| QSTQingdao Saber Tech | RT30 | China · US | $308US$220 | $10,267 | — |
| CHPChampion Peptide | RT30 | China · US | $315US$225 | $10,500 | List price |
| GYCGYC Peptides · US wh | RT30 | China · US | $321US$230 | $10,700 | US wh (Canada test = RT-10 only) |
| ABCAllen Biotech · US wh | RT30 | China · US | $335US$240 | $11,167 | US warehouse |
| AURORAAurora Biotech · US wh | RT30 | China · US | $342US$245 | $11,400 | US warehouse |
| HPT (homo)Homopeptide · AU/China wh | RT30 | China · US | $363US$260 | $12,100 | — |
| TFCTianjin Finder Chemical | RT30 | China · US | $376US$269 | $12,533 | — |
| QYCQianyecao Biotech | RT30 | China · US | $419US$300 | $13,967 | — |
China & US ship from abroad (cross customs) · Canada-direct in-country, no customs · CA advertised Canada stock unconfirmed · 🟢 green = cheapest price per product (China) · use the Warehouse filter above to view one warehouse at a time
How the numbers work
• TZ30 / RT30 = price of one 30 mg kit (30 mg × 10 vials = 300 mg). /10000 mg = kit × (10000 ÷ 300), so you can compare $/mg straight across. USD → CAD @ 1.3978 (2026-06-11); small grey figure = original USD.
• China & US warehouse = the vendor's standard overseas stock (cheapest, but crosses customs / seizure risk). Canada-direct = in-country Canadian stock, domestic shipping, no customs. Each price is tagged by the warehouse it was posted under. Note: many vendors run both a China and a US warehouse, sometimes at different prices — e.g. AURORA is ~US$88/$188 from China vs US$105/$245 from the US, and ERP charges US$199 from US and Canada alike.
Canada-direct warehouses (30 mg)
• ERP RT30 C$278 (US$199) — in stock, US$25 flat local shipping; same price as ERP's China warehouse, so Canada-local is free risk reduction. ERP thread.
• MPS TZ30 C$168 (US$120) — in stock, ships within Canada (free over US$400, else US$40). Order elsa@m-mps.com; kit unit not stated in their post — verify quantity. MPS thread.
• XTP / SSY advertise a Canada RT30 ≈C$238 (US$170), but the listed price looks like China/US stock — Canada-local availability unconfirmed; verify before ordering (would undercut ERP if real).
• Other Canada-warehouse vendors carry no 30 mg right now: JKL (Tirz 10/15 only), GYC (RT-10 test route), HPT (Tirz 60 mg only), WBS (RT30 out of stock), LJ (image sheet, none), FGP (advertised, no confirmed 30 mg).
US / China scan notes (all 29 vendor sub-forums)
• XTP T30 is a flash sale (US$80); standing RT30 US$210. CHP = published list price (a promo runs ~US$100 / US$190–210). TFC T30 is a 2-kit deal (US$330 ÷ 2). WBS/MPS/GYC list RT30 only; PTB lists TZ30 with RT30 inbound.
• Sell TZ30/RT30 but no forum-readable price this scan (images / contact-only / external sheet): SPB, KR, FGP, LJ, MKM, Barn. No 30 mg at all: MIX (R-50/T-60 only), ZJ.
Legit (1–5) & Reviews / trust column
• Legit 1–5 is a single legitimacy score (click the column header to sort high→low or low→high): 5 = established with strong positive reviews; 4 = good reviews / tested, fewer or newer; 3 = popular but with documented concerns, or active but thin review history; 2 = active seller, little independent feedback yet; 1 = brand-new / advertised-only / unproven.
• Synthesized from glp1forum's Vendor Reviews sub-forum (per-vendor reply volume + sentiment) and the community problem threads (Endotoxin Warning, "Anyone buying from ERP", "JEEP isn't only endo concern"). Tiers: Trusted · Solid · Caution · New/unproven. This is community sentiment, not a guarantee — verify COAs yourself.
• Forum-wide caveat: these are gray-market vendors and most test only mass/purity, not endotoxins. ERP and JEEP (the two cheapest reta) have specific public concerns; HPT has recent shipping/lost-tracking complaints. Strongly consider third-party (Janoshik) testing your own batch.
📰 Compound News
Recent developments for Retatrutide, Tirzepatide & Eloralintide — from clinical/regulatory news and the glp1forum community.
Retatrutide triple agonist (GLP-1/GIP/glucagon) · investigational
Tirzepatide GLP-1/GIP · Mounjaro & Zepbound (approved)
Eloralintide selective amylin agonist · investigational (Lilly)
• Investigational compounds (Retatrutide, Eloralintide) are not FDA-approved and not sold legally for human use; forum "availability" is unregulated gray-market sourcing — verify third-party testing (Janoshik), dose and endotoxins yourself.
• News is a weekly snapshot from public web sources + glp1forum.com; clinical figures are from Lilly / press releases. Not medical advice.
📦 Shipping Box Prices — 8″×4″×2″
Canadian suppliers vs. Alibaba for ~500 boxes, with volume pricing at 1,000+
🇨🇦 Canadian Suppliers — prices in CAD, delivered
| Supplier | Size | Per box | 500 boxes | 1,000 boxes | Shipping | Notes |
|---|---|---|---|---|---|---|
| eBay — supplyhut Exact size450,133 reviews · 100% positive | 8×4×2″ exact corrugated | $0.70 + $0.05 ship | ~$380 all-in | ~$732 all-in | Flat C$27.27same regardless of qty · expedited · from outside Canada | Only confirmed exact 8×4×2 listing. C$70.49/100 boxes. Flat C$27.27 shipping regardless of how many packs ordered — the more you buy the cheaper shipping per box. 500 boxes = 5×C$70.49 + C$27.27 = C$379.72. Customs may apply. ebay.ca ↗ |
| Staples Canadaitem 481792 | 8×6×4″ kraft | $0.60 | ~$300 | ~$600 | Free over $35next-day, local trade areas | Flat per-pack pricing, no volume tiers. Price from Sept 2025 snapshot — verify at checkout. staples.ca ↗ |
| Staples Canadaitem 694467 | 8×4×4″ kraft closer fit | $0.81 | ~$406 | ~$813 | Free over $35next-day, local trade areas | Dimensionally closer (same 8×4 footprint, twice the depth). No volume tiers. |
| Uline CanadaS-20491 (6×4×2) | 6×4×2″ | $0.51 @500 | ~$255 + freight | ~$500 @$0.50 | No free shipfreight invoiced + $1.50 fee | Lowest product subtotal but freight erodes the gap vs Staples. Tiers: 25/$0.65 · 100/$0.59 · 250/$0.56 · 500/$0.51 · 1,000+/$0.50. No exact 8×4×2 SKU confirmed. uline.ca ↗ |
| The Packaging CompanyBrampton, ON | 8×8×6″ (closest) | $0.83 | ~$415 | — | No 8×4×2 in catalog. No volume tiers displayed. Price anchor only. thepackagingcompany.com ↗ | |
| Crownhill / SupplyOne | Custom 8×4×2 possible | Quote only | — | — | No online prices. Call 1-888-571-1101 for custom 8×4×2 quote at 500 & 1,000+. | |
| Instabox | Custom 8×4×2 possible | Quote only | — | — | No online prices. Call 1-800-661-9949 — explicitly quotes multiple quantities at once, ideal for 500 vs 1,000+ comparison. | |
🌏 Alibaba — prices in USD FOB China, shipping to Canada not included
| Supplier | Price / box (USD) | MOQ | Sales volume | Notes |
|---|---|---|---|---|
| Dongguan Enguanghao Paper | $0.13–0.25 | 100 pcs | 300 sold | Cheapest listed. Low sales volume — verify quality before large order. |
| Dongguan Baicheng Package | $0.31–0.42 | 100 pcs | 53,000+ sold | High-volume, well-established supplier. Good first contact for exact 8×4×2 custom quote. |
| Fujian Sencai Times Tech | $0.42 | 100 boxes | 25,000+ sold | Consistent pricing, reputable volume. |
| Pinghu Wanli Printing | $0.41–0.45 | 500 pcs | — | MOQ matches your target quantity exactly. |
| JINLICHANG Shenzhen | $0.42–0.84 | 500 pcs | 100,000+ sold | Very established. Wide price range depending on spec/print. |
| Zhangjiagang Jinggong | $0.46–0.70 | 500 pcs | — | — |
Bottom line
- At 500 boxes: Staples Canada 8×6×4 (~$300 CAD free delivery) is the best verified all-in price. Uline product cost is lower (~$255) but freight likely closes the gap.
- At 500 boxes, exact size: call Instabox (1-800-661-9949) for a custom 8×4×2 quote — they quote multiple quantities simultaneously.
- At 3,000–5,000+ boxes: Alibaba becomes compelling at $0.13–0.42 USD/box FOB, but add ~$400–600 USD sea freight + customs (~5–6.5% duty) for landed Canada cost.
- Alibaba lead time: 2–4 weeks production + 2–4 weeks shipping. Plan ahead.
Notes
• Canadian prices exclude GST/HST/PST (varies by province). Staples free delivery applies within local trade areas only — remote postal codes may incur distance surcharges.
• Alibaba prices are FOB China in USD. Add sea freight (~$400–600 USD for a small LCL pallet), Canadian customs duty (HS 4819.10, ~5–6.5%), and brokerage fees to get landed CAD cost. At 500 units the total delivered cost from Alibaba typically exceeds Canadian supplier pricing.
• Uline Canada tier structure (confirmed): 25/$0.65 · 100/$0.59 · 250/$0.56 · 500/$0.51 · 1,000+/$0.50 (S-20491, 6×4×2). Boxes sold in bundles of 25. Freight prepaid and invoiced separately.
• Sources: uline.ca · staples.ca · thepackagingcompany.com · alibaba.com · instabox.ca