What is Nail, Bolt, Nut, Screw and Rivet Manufacturing Workers Compensation (class code: 3152)?
This workers’ compensation classification applies to businesses that manufacture small metal fasteners such as nails, bolts, nuts, screws, and rivets. The coverage is designed to pay medical expenses and wage replacement for employees injured on the job, and to provide employer liability protection against certain workplace claims. Insurers consider factors like payroll, job tasks, and operational hazards when underwriting these accounts.
Who needs it
Any employer that manufactures, assembles, heat-treats, or finishes small fasteners typically needs this coverage. Common buyers include small manufacturers, contract fabricators, and some distributors who perform secondary finishing operations. Related operations sometimes fall under nearby classifications — for example, companies involved with related fastener products may also review resources such as Tag, Button, and Fastener Manufacturing Workers Compensation (Class 3131) for comparison.
What it typically covers
Workers compensation for this class commonly covers:
- Medical treatment and rehabilitation for on-the-job injuries
- Temporary and permanent disability benefits
- Death benefits to beneficiaries in fatal incidents
- Limited employer liability protection tied to workplace injuries
For businesses with additional exposures — for example property damage from equipment, commercial auto exposure for delivery vehicles, or third-party liability for visitors — carriers often offer package solutions or endorsements. Manufacturers sometimes compare related classifications like Hardware Manufacturing Workers Compensation (class code: 3146) when evaluating broader property or equipment coverage needs.
Common exclusions or limitations
Workers compensation does not cover intentionally self-inflicted injuries, injuries that occur outside the scope of employment, or statutory exclusions defined by state law. Other limitations may include wage caps, specific benefit schedule limits, and exclusions for non-covered contractors or volunteers. Separate coverages (such as commercial liability or participant accident coverage) are required to address third-party claims or event exposures outside workers’ comp.
Factors that influence cost
Pricing is affected by payroll size, the mix of job duties (press operation, machining, heat treatment), claims history, safety programs, and workplace controls. Underwriting factors also include the presence of certified safety training, lockout/tagout procedures, equipment guarding, and whether the operation includes hazardous processes like plating or high-temperature forging. Risk management practices can reduce premiums and improve carrier options.
Proof of insurance & compliance
Most states require employers to post a workers’ compensation notice and to provide proof of insurance to state agencies or contracting parties. Certificates of insurance and exemption filings may be required for contractors and vendors. Maintain records of payroll classifications, safety audits, and claims to support compliance and audits.
How to get a quote
To get a tailored quote, gather recent payroll figures by job class, loss runs for the past three years, and a description of operations and safety controls. If you want help comparing options, you can talk to your agent for an individualized assessment and competitive quotes.
Risk scenario: a machine operator suffers a hand injury from improper guarding — workers’ comp covers medical care and a portion of lost wages, while good risk management can reduce the chance of similar incidents.
Frequently Asked Questions
Do subcontractors need to be covered under my policy?
Typically, independent subcontractors should carry their own workers’ compensation. Verify certificates of insurance and contract language, and consult your insurer about any required endorsements.
Will workers’ comp cover repetitive strain injuries?
Many repetitive stress or cumulative trauma injuries are covered if you can show they arose out of and in the course of employment, but state rules and medical evidence requirements vary.
How can I lower my premium?
Implement safety programs, reduce reported payroll errors, separate non-manufacturing employees into correct classes, and maintain a clean loss history. Discuss return-to-work programs with your insurer to limit loss durations.
Still have questions? Talk to a local insurance expert.