When ordering fasteners, part numbers are the fastest way to find exactly what you need. Each Royal Brass and Hose part number follows a consistent structure that identifies the fastener category, subcategory, and specific product. This guide breaks down that system by category so you can search, order, and verify parts with confidence. The ecommerce site has all fasteners broken down by category at royalbrassandhose.com/category/fasteners.
Key Takeaways
- Royal Brass and Hose uses a consistent part numbering system across all fastener categories, making it easier to search, order, and verify products.
- Part numbers identify the category, subcategory, and specific product within the Royal Brass and Hose catalog.
- The eight main fastener categories are: bolts, fixing fasteners, keystock and keys, nuts, pins, rods and studs, screws, and assortments.
- When in doubt about a part number, contact a Royal Brass and Hose sales representative for help with identification.

Bolts
Subcategories: Carriage, Plow, Structural, Tap, Hex, Square, Elevator, J-bolt.
Fixing Fasteners
Subcategories: Cable Ties, Washers, Wire Rope Clips.
Keystock and Keys
Subcategories: Keys, Keystock.
Nuts
Subcategories: Hex, Lock, Jam, Wing.
Pins
Subcategories: Cotter, Dowel.
Rods and Studs
Subcategories: Threaded Rod.
Screws
Subcategories: Cap Screws, Self-Drilling, Machine, Set, Thumb, Shoulder, Flange.
Assortments
Subcategories: Standard, Metric.
Need help identifying a fastener?
Contact a Royal Brass and Hose sales representative or call 800-669-9650 for help with part number identification. Royal Brass and Hose serves customers across 11 locations: Knoxville, TN; Marietta, GA; Orlando, FL; Charlotte, NC; Little Rock, AR; Fort Worth, TX; Benton, IL; Madisonville, KY; Princeton, WV; Birmingham, AL; and Calvert City, KY.
Frequently Asked Questions About Fastener Part Numbers
Part numbers follow a consistent structure that identifies the product category, subcategory, and specific item. The reference diagram at the top of this post shows how each segment of the part number maps to a category and subcategory.
All fastener categories are available at royalbrassandhose.com/category/fasteners. Each category page lists available products with part numbers, specifications, and ordering options.
Use the category pages linked in each section of this guide to browse by fastener type. If you know the subcategory, navigate directly from the category page. A Royal Brass and Hose sales representative can also help identify the correct part number from a description or sample.
Yes. Enter the part number directly into the site search bar to locate the product page. Partial part numbers and keyword searches also work across most category pages.







