Fastener Price Trends: BLS PPI Data for Estimators
On large commercial framing, drywall, ceiling, and industrial interior projects, fasteners represent thousands of individual units across walls, soffits, and assemblies. When assembling bids, estimators often treat bolts, screws, rivets, and washers as minor incidental hardware, assuming prices remain flat or mirror raw steel mill swings. Examining the producer price record helps bidders separate recurring pricing myths from historical facts.
Myth 1: Fastener Prices Always Move in Lockstep with Recent Year-Over-Year Trends
Fact: Fastener price levels shift unevenly across short and intermediate horizons. According to the U.S. Bureau of Labor Statistics, the Producer Price Index for bolts, nuts, screws, rivets, and washers (series WPU1081) sat at 331.9 in September 2026. While the series experienced a month-over-month increase of +0.6% from August 2026 (329.9) to September 2026 (331.9), the broader trend shows contractions over several recent comparative baselines:
- Change versus one year earlier (September 2025 at 342.5): -3.1%
- Change versus two years earlier (September 2024 at 336.0): -1.2%
- Change versus the peak in January 2026 (349.4): -5.0%
Subcontractors building long-term estimates must evaluate the underlying data points rather than assuming perpetual upward movement on hardware lines.
Myth 2: Hardware Pricing Has Returned to Historical Pre-Pandemic Levels
Fact: Although the index has pulled back from its record high, fasteners remain substantially higher than their pre-2021 levels. In January 2020, before widespread supply chain disruptions, the index was 211.9. As of September 2026, the index sits +56.6% higher than that pre-pandemic marker. Even when measured five years earlier in September 2021 (249.4), the current index reflects an increase of +33.1%.
Reviewing annual averages underscores this structural reset across the market:
- 2017: 191.7
- 2018: 196.2
- 2019: 209.4
- 2020: 216.9
- 2021: 238.0
- 2022: 282.6
- 2023: 308.1
- 2024: 331.7
- 2025: 342.7
- 2026 (January–September only): 334.6
Estimators pulling unit costs from older projects without checking current price levels risk eroding their planned profits. Proper evaluation requires pairing hardware takeoffs with formal Price Escalation Clauses: How to Protect Your Bid From Material Price Swings.
Key BLS PPI Data for Bolts, Nuts, Screws, Rivets, and Washers
The table below summarizes critical baseline figures for series WPU1081 published by the U.S. Bureau of Labor Statistics. The series uses a base period of 1982 = 100, is not seasonally adjusted, and recent monthly values remain preliminary and subject to revision for four months.
| Benchmark Period | Index Value | Raw Value | Change to Latest (Sept 2026) |
|---|---|---|---|
| Latest (September 2026) | 331.9 | 331.921 | N/A |
| One Year Earlier (September 2025) | 342.5 | 342.547 | -3.1% |
| Two Years Earlier (September 2024) | 336.0 | 336.037 | -1.2% |
| Five Years Earlier (September 2021) | 249.4 | 249.388 | +33.1% |
| Pre-Pandemic (January 2020) | 211.9 | 211.900 | +56.6% |
| Window High (January 2026) | 349.4 | 349.353 | -5.0% |
| Window Low (January 2018) | 191.3 | 191.300 | N/A |
Myth 3: Monthly Hardware Costs Stay Completely Flat During a Single Job
Fact: Examining monthly movement over the past 13 months reveals sharp fluctuations across short durations. After reaching 342.5 in September 2025, the series climbed steadily through late 2025 (October: 343.5; November: 346.5; December: 347.2) before peaking at 349.4 in January 2026. What followed was a multi-month decline: February dropped to 339.8, March held near 340.0, April hit 330.6, May was 331.2, and June touched a 2026 low of 328.8. Subsequent months recorded slight rebounds, moving to 329.8 in July, 329.9 in August, and 331.9 in September.
On jobs requiring extensive connections, such as framing heavy gauge assemblies or structural studs, hardware variations can accumulate quickly. Estimators working on structural or drywall framing packages should pair these market insights with detailed tracking practices outlined in our Metal Stud Framing Takeoff: Studs, Track, Openings and Gauges guide.
Sources
Published October 31, 2026. No affiliate links on this page. Facts come from the sources linked above; check them for updates.