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Bolt, Nut, Screw, Rivet and Washer Manufacturing

NAICS 332722 · Fabricated Metal Product Manufacturing · SBA size standard: 600 employees

Manufacturers of bolts, nuts, screws, rivets and washers take custom orders for standard and specialty fasteners, run production on forming, threading, heat-treat and plating lines, and ship on customer schedules. For a shop that produces both catalog items and made-to-print specials, the specialists turn purchase orders into job travelers and material requisitions, production schedules into machine setups and tool lists, and finished batches into inspection reports, certifications and shipments. Tooling, raw material specs, plating standards and lot traceability stay with the machinist and quality team.

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What makes this business different

  • Custom specifications including thread pitch, material grade, head style, plating and certifications that must match the print exactly
  • Job travelers that follow each lot from raw rod through forming, secondary, heat treat, plating and final inspection
  • Raw material inventory by alloy, diameter and heat number with mill certs attached
  • Machine setup sheets, die and tap inventories, and tooling maintenance logs
  • Plating and coating lines with bath chemistry logs and wastewater compliance records
  • Lot traceability, material test reports and certificate of conformance paperwork per customer requirement
  • Seasonal demand spikes from automotive, construction and aerospace customers with blanket orders and releases

Specialist bots

  • a machinist at a desk examining a technical drawing under a lighted magnifier next to a stack of steel rod samples

    Order and Print Reviewer

    Convert incoming purchase orders and prints into checked job travelers with all requirements captured.

    Works in: Ambitious Docs, Ambitious Tasks, Contract Analyzer · Workflows: Order and print review

    Automates

    • Extracts part number, material, plating and certification requirements from orders and prints
    • Compares specifications to approved processes and equipment
    • Flags missing or conflicting tolerances
    • Builds the initial job traveler template
    • Drafts order acknowledgment

    Stops for a person

    • The owner or lead machinist approves acceptance of any new or complex part
    • A person reviews and signs every final traveler before release to the floor
  • a worker measuring the diameter of steel wire coils in a warehouse rack with calipers and inventory tags visible

    Raw Material Planner

    Calculate and reserve raw material requirements and generate mill purchase requisitions with heat traceability.

    Works in: Ambitious Sheets, Ambitious Tasks, Ambitious Docs · Workflows: Raw material and inventory planning

    Automates

    • Calculates wire, rod and bar quantities by alloy and diameter
    • Checks current certified stock and on-order material
    • Generates purchase requisitions
    • Reserves specific heats for each job
    • Maintains mill certification files

    Stops for a person

    • The owner approves all raw material purchases
    • The quality manager confirms that mill certifications meet customer requirements
  • a machinist setting up a cold heading machine with large forming dies and adjustment tools on the shop floor

    Production Scheduler

    Build weekly and daily machine schedules and generate setup sheets for each job.

    Works in: Ambitious Sheets, Ambitious Tasks · Workflows: Production scheduling and machine setup

    Automates

    • Loads orders into the master schedule by due date priority
    • Assigns jobs to appropriate heading, threading and secondary machines
    • Creates detailed setup sheets with tooling and parameter lists
    • Flags jobs for external heat treat or plating
    • Produces operator dispatch lists

    Stops for a person

    • The shop supervisor adjusts the schedule for machine availability and operator skill
    • Setup sheets are verified by the lead operator before running
  • a worker using a thread gauge on a batch of finished bolts laid out on an inspection table with micrometers nearby

    Quality Inspector

    Capture in-process and final inspection data, compile test reports and draft certificates of conformance.

    Works in: Ambitious Tasks, Ambitious Sheets, Ambitious Docs · Workflows: In-process and final inspection

    Automates

    • Generates sampling plans per the traveler
    • Records thread, dimensional and visual results
    • Compiles plating thickness and hardness data
    • Assembles material test reports and drafts certificates
    • Releases lots for packaging once data is complete

    Stops for a person

    • The quality manager reviews all test data and signs certificates
    • Any out-of-tolerance conditions are reviewed and dispositioned by a person
  • a technician sharpening a heading punch on a grinder with racks of organized dies visible in the background

    Tooling and Die Coordinator

    Track tooling usage, schedule maintenance and maintain setup records for punches, dies and taps.

    Works in: Ambitious Sheets, Ambitious Tasks, Ambitious Docs · Workflows: Tooling and die maintenance

    Automates

    • Logs piece counts and hours on each tool
    • Schedules sharpening or replacement at wear limits
    • Maintains backup tooling inventory
    • Creates tool room work orders
    • Updates setup sheets with current tool status

    Stops for a person

    • The tool room lead approves all tooling repairs and purchases
    • Operators confirm tool condition before starting a production run
  • a worker loading barrels of fasteners into a plating line tank with protective equipment and chemical drums nearby

    Plating and Coating Coordinator

    Manage lot movement to plating, specify requirements and compile post-plating test results.

    Works in: Ambitious Tasks, Ambitious Docs, Ambitious Sheets · Workflows: Plating and coating management

    Automates

    • Prepares traveler instructions for each plating lot
    • Specifies bath, thickness and post-treatment requirements
    • Tracks chain of custody for lots sent outside
    • Records and attaches test results from each run
    • Updates job status upon return

    Stops for a person

    • The owner approves plating specifications and vendor selection
    • The quality team reviews all plating certifications before lot release
  • a worker packing finished bolts into shipping cartons at a bench with labels, bubble wrap and a scale

    Shipping and Certification Clerk

    Compile all required certifications, generate shipping documents and close completed jobs.

    Works in: Ambitious Docs, Ambitious Tasks, Ambitious Sheets · Workflows: Shipping and certification release

    Automates

    • Generates packing lists and bills of lading
    • Compiles material certifications and inspection records
    • Drafts certificates of conformance
    • Creates shipping notifications and invoices
    • Closes travelers and updates finished goods inventory

    Stops for a person

    • A person reviews and signs every certificate of conformance before shipment
    • The owner approves all final invoices and shipping releases

Workflows

Order and print review

Starts when: Receipt of a new purchase order or blanket release

  1. Extract part number, quantity, due date, material, plating and certification requirements
  2. Compare specifications against current capability and approved processes
  3. Flag any missing dimensions, tolerances or reference standards on the print
  4. Create a job traveler template linked to the order
  5. Draft acknowledgment with confirmed ship date

Watch for: Prints must be reviewed for manufacturability before acceptance; Special processes such as hydrogen embrittlement relief or passivation require early confirmation

Raw material and inventory planning

Starts when: After order review and weekly

  1. Calculate rod, wire or bar requirements by alloy and diameter
  2. Check against current stock and on-order mill quantities
  3. Generate purchase requisitions for mill material with required heat numbers
  4. Reserve existing certified stock for the job
  5. Update inventory projections and reorder points

Watch for: Mill certifications must travel with each heat of raw material; Minimum order quantities from mills create inventory spikes

Production scheduling and machine setup

Starts when: Weekly capacity meeting and daily

  1. Load confirmed orders into the master schedule by due date
  2. Assign jobs to heading, threading, slotting or secondary machines
  3. Generate setup sheets listing tooling, die, tap and speed settings
  4. Flag jobs needing heat treat or plating subcontracting
  5. Produce daily dispatch list for each operator

Watch for: Changeover time between different thread sizes and head styles is significant; Certain machines are dedicated to specific alloys to avoid contamination

In-process and final inspection

Starts when: Completion of each production step and at final

  1. Pull samples according to the sampling plan on the traveler
  2. Record dimensional, thread gauge and visual inspection results
  3. Log plating thickness, salt spray hours and hardness values when applicable
  4. Attach material test reports and generate certificate of conformance draft
  5. Release the lot for packaging once all checks pass

Watch for: Destructive testing such as wedge tensile or proof load requires sample destruction tracking; Traceability must be maintained from finished part back to raw material heat

Tooling and die maintenance

Starts when: After each production run and on scheduled intervals

  1. Log usage hours or piece counts for punches, dies and taps
  2. Schedule sharpening or replacement based on wear limits
  3. Maintain inventory of backup tooling by part number
  4. Create work orders for tool room grinding or EDM work
  5. Update setup sheets with current tool conditions

Watch for: Worn tooling directly affects thread finish and dimensional tolerance; Custom heading dies for specialty head styles are expensive and long-lead

Plating and coating management

Starts when: When lots reach the plating stage

  1. Prepare lot traveler for plating vendor or internal line
  2. Specify bath chemistry, thickness and post-treatments per print
  3. Track incoming and outgoing lots with chain of custody
  4. Record test results from each barrel or rack run
  5. Update job status once plating certification is received

Watch for: Different plating types cannot share the same bath without thorough cleaning; RoHS, REACH or other environmental requirements must be confirmed per customer

Shipping and certification release

Starts when: When final inspection approves the lot

  1. Generate packing list and bill of lading
  2. Compile material certifications, inspection reports and certificate of conformance
  3. Draft shipping notification and invoice
  4. Schedule carrier pickup according to customer routing guide
  5. Close the job traveler and update inventory

Watch for: Many customers require specific formats for certificates and test reports; International shipments add export documentation and country of origin rules

Bot templates for this industry

Source: U.S. Small Business Administration, Office of Size Standards, Table of Small Business Size Standards Matched to North American Industry Classification System Codes, version March 2023 (effective 2023-03-17, NAICS 2022). Size standards are shown for reference only.