McMaster-Carr Scraper

Pull structured product data from McMaster-Carr at scale — part numbers, prices, tiered quantity price breaks, per-family spec tables, images, and direct product links for fasteners, tools, raw materials, and hardware. Paste a category page, a search, or a single product URL and get clean rows back. Built for procurement teams, mechanical engineers, and e-commerce sellers who need McMaster-Carr part data and pricing without copy-pasting it cell by cell out of the catalog.

Why This Scraper?

• Tiered quantity price breaks — captures McMaster's buy-more-save-more pricing as a structured priceBreaks list (minQty + price per tier), so you can model bulk-order cost instead of just the unit price.
• Per-family spec tables — every product row carries a generic specs map of that family's listing columns: thread size, material, length, drive style, tensile strength, finish, and whatever else the family lists. No data is dropped because it didn't fit a fixed schema.
• Three input types in one actor — category pages, keyword search URLs, and direct product URLs all resolve to product rows. Mix all three in a single run.
• Batch a list of URLs, not one at a time — paste as many McMaster-Carr URLs as you want into one run; results are deduplicated by part number across all of them.
• Full category pull — point it at a leaf category like washers (~750 parts) or eyebolts and get every product row, not just the first page.
• Optional full detail mode — flip one switch to open each product's own page for its complete specification table, full descriptive title, qualified price string, and (where available) the primary image.
• Orderable part numbers + direct links — every row includes the exact McMaster SKU and a ready-to-open mcmaster.com product URL, so a buyer can go straight to checkout.
• Filter-aware — narrow by thread size, material, or any facet on McMaster first, then paste the filtered URL to scrape only the parts that match.
• JSON, CSV, and Excel export — every result downloads in the format your BOM tool, ERP, or spreadsheet already speaks.

Use Cases

Procurement & Sourcing

• Build approved-vendor part lists with current McMaster pricing
• Capture tiered price breaks to find the cheapest order quantity
• Pull a whole category to compare options before placing a PO
• Keep an internal parts catalog in sync with McMaster SKUs

Competitive & Price Monitoring

• Track McMaster list prices on the parts you resell
• Benchmark your own catalog against McMaster's pricing
• Watch quantity-break thresholds for high-volume SKUs
• Spot price movement on key fasteners and hardware over time

Engineering & BOM Building

• Populate a bill of materials with verified part numbers and specs
• Pull thread size, material, and dimensions for component selection
• Cross-reference tensile strength and finish across a fastener family
• Attach product images and links to design documentation

E-commerce & Catalog Enrichment

• Enrich your storefront with McMaster part specs and images
• Fill in missing attributes (material, size, finish) on existing listings
• Map your SKUs to McMaster equivalents
• Feed clean product rows into a marketplace or PIM

Market & Category Research

• Map how many parts a family contains and which variants exist
• Analyze spec coverage across a product category
• Study how McMaster structures and prices an entire family
• Build datasets of industrial hardware for analysis

Getting Started

Scrape One Category

The simplest run — paste a single category URL:

{
    "startUrls": ["https://www.mcmaster.com/products/eyebolts/"]
}

Limit the Results

Cap how many products come back across all your URLs:

{
    "startUrls": ["https://www.mcmaster.com/products/washers/"],
    "maxResults": 50
}

Full Detail Mode (Multiple URLs)

Batch a category, a search, and a product URL — and pull every product's full spec table, complete title, tiered pricing, and image:

{
    "startUrls": [
        "https://www.mcmaster.com/products/socket-head-screws/",
        "https://www.mcmaster.com/search/threaded%20insert%20brass/",
        "https://www.mcmaster.com/91251A268/"
    ],
    "includeProductDetails": true,
    "maxResults": 500
}

Input Reference

What to Scrape

Parameter	Type	Default	Description
startUrls	array of strings	["https://www.mcmaster.com/products/eyebolts/"] (example prefill)	One or more McMaster-Carr category, search, or product page URLs. Tip: apply any filters you want in your browser first, then copy the resulting URL and paste it here. A very broad top-level category is collected up to its first 150 sub-sections per run; for a complete pull of an extremely large category, scrape a more specific (leaf or filtered) URL or split it.

Options

Parameter	Type	Default	Description
includeProductDetails	boolean	false	Open each product's own page to collect its full specification table, complete title, and main image. This gives you more data per product but takes longer and costs more.
maxResults	integer	0	The largest number of products to return across all your URLs. Set to 0 for no limit.

Output

Each product is one flat row. Listing-only runs populate the core fields and the per-family specs map; turning on Include full product details adds titleFull, priceBreaks, the full specifications table, and — where the product page exposes it — the product image (imageUrl is best-effort and may be empty for some products).

{
    "partNumber": "91251A268",
    "title": "Steel Socket Head Screws",
    "titleFull": "Black-Oxide Alloy Steel Socket Head Screw, 1/4\"-20 Thread Size, 1\" Long",
    "url": "https://www.mcmaster.com/91251A268/",
    "price": "$15.16 per pack of 10",
    "priceBreaks": [
        { "minQty": 1, "price": "$15.16" },
        { "minQty": 5, "price": "$13.98" },
        { "minQty": 25, "price": "$11.42" }
    ],
    "family": "Steel Socket Head Screws",
    "specs": {
        "Thread Size": "1/4\"-20",
        "Length": "1\"",
        "Material": "Alloy Steel",
        "Finish": "Black Oxide",
        "Drive Style": "Hex"
    },
    "imageUrl": "https://images1.mcmaster.com/mvC/Contents/gfx/ImageCache/301/91251A268_image.png",
    "specifications": {
        "Tensile Strength": "180,000 psi",
        "Thread Type": "UNC",
        "Unit of Measure": "Pack of 10"
    },
    "sourceUrl": "https://www.mcmaster.com/products/socket-head-screws/",
    "scrapedAt": "2026-06-20T13:43:31.166824+00:00"
}

Core Fields

Field	Type	Description
partNumber	string	McMaster part number — the orderable SKU.
title	string	Product or family title for the row.
titleFull	string | null	Full descriptive title (detail mode only).
url	string	Direct product URL on mcmaster.com.
family	string	Product family / category the row came from.
imageUrl	string | null	Primary product image URL — best-effort in detail mode (may be empty for some products).

Pricing

Field	Type	Description
price	string | null	Listed price for the row — the bare number in listing mode (e.g. "8.71") and a qualified string in detail mode (e.g. "$15.16 per pack of 10"). null for call-for-price products.
priceBreaks	array | null	Tiered quantity pricing as [{minQty, price}] (detail mode).

Specifications & Metadata

Field	Type	Description
specs	object	Per-family listing columns as a key→value map (thread size, material, length, finish, etc.). Keys vary by product family.
specifications	object | null	Full detail-page specification table (detail mode only).
sourceUrl	string	The input URL this row was extracted from.
scrapedAt	string	ISO 8601 timestamp of when the row was collected.

Tips for Best Results

• Filter first, then paste. Narrow a category by thread size, material, or any facet on McMaster-Carr in your browser, then copy that filtered URL — you'll scrape only the parts you care about and pay for nothing extra.
• Point at a leaf category, not a broad top-level one. A specific family like "eyebolts" or "socket head screws" returns clean product rows; a very broad top-level category resolves to sub-categories that the actor will walk into for you, but a leaf family is the most direct route.
• Turn on full details when you need specs or images. Listing rows give you part numbers, prices, and the family's listing columns. Switch on Include full product details for the complete spec table, full title, tiered price breaks, and (where available) the product image — at a higher per-product cost.
• Use priceBreaks to find your sweet-spot quantity. The tiered list shows exactly where each discount kicks in, so you can size an order to land in the cheapest bracket.
• Set maxResults while you test. Start with a small cap to preview the shape of the data, then set it to 0 for a full category pull once you're happy.
• Batch related URLs in one run. Drop several categories, searches, and product URLs into startUrls together — results are deduplicated by part number, so overlapping inputs won't double up.
• specs keys are family-specific. Two different families return different column names, so map fields per family rather than assuming a fixed set across your whole dataset.

Pricing

From $4.00 per 1,000 results — undercutting other McMaster-Carr extractors while returning richer data per product. Bronze, Silver, and Gold subscribers pay progressively less; the table below shows total cost at each discount tier.

Results	No discount	Bronze	Silver	Gold
100	$0.48	$0.45	$0.43	$0.40
1,000	$4.75	$4.50	$4.25	$4.00
10,000	$47.50	$45.00	$42.50	$40.00
100,000	$475.00	$450.00	$425.00	$400.00

A "result" is one product row in your dataset. No compute or time-based charges — you pay per result, plus a small fixed per-run start fee.

Integrations

Export data in JSON, CSV, Excel, XML, or RSS. Connect to 1,500+ apps via:

• Zapier / Make / n8n — Workflow automation
• Google Sheets — Direct spreadsheet export
• Slack / Email — Notifications on new results
• Webhooks — Trigger custom APIs on run completion
• Apify API — Full programmatic access

Legal & Ethical Use

This actor collects publicly available product information from McMaster-Carr for legitimate business purposes such as procurement, pricing research, and catalog management. You are responsible for using the collected data in compliance with McMaster-Carr's terms of service and all applicable laws. Do not use the data to infringe intellectual property, and respect reasonable request volumes. This actor does not collect personal data.