Arbors (i.e., a machine tool accessory) manufacturing · Michigan

Hydra-Lock Corporation

Mt. Clemens, MI · ~22 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.0
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Hydra-Lock Corporation runs at 151% of its industry's injury rate - more dangerous than the typical Arbors (i.e., a machine tool accessory) manufacturing workplace, earning a grade D.

Hydra-Lock Corporation: 5.0 TCR = 151% of Arbors (i.e., a machine tool accessory) manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Hydra-Lock Corporation safety composite

Hydra-Lock Corporation scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 6%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

21/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.97 per 100 workers

Safer than 17% of industry peers

DART rate
F 5.71 per 100 workers

Safer than 6% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Hydra-Lock Corporation: 4.4 → 5.7 TCR

Peak year 2023 @ 5.7 TCR · DART/TCR 1.15× in 2023

Hydra-Lock Corporation's TCR rose 1.3 from 4.4 in 2021 to 5.7 in 2023. In 2023, DART was 1.15× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 333515 · Mt. Clemens, MI ABOVE-IND · SMALL

Grade D · TCR 5.0 · 151% of ind

  • DART 5.7 DART
  • RANK #35/40
  • PHOTO GWS Tool LLC - TN
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~22 FTE

Nearest TCR peer: GWS Tool LLC - TN (0.0 TCR gap)

Read with this employer → · Industry book → · Michigan employers → · Look up another →

Hydra-Lock Corporation in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Hydra-Lock Corporation averages 5.0 TCR (151% of the Arbors (i.e., a machine tool accessory) manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Hydra-Lock Corporation TCR series: 2021=4.4 · 2022=4.8 · 2023=5.7 · BLS 3.3

Where Hydra-Lock Corporation falls in its industry

221 Arbors (i.e., a machine tool a establishments

Safer than 17% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #35 safest of 40 Arbors (i.e., a machine tool a employers in Michigan.

Hydra-Lock Corporation (22 employees, TCR 5.0) among 29 same-industry peers, split at the industry median of 71 employees and a TCR of 2.5 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0200400600 051015 Average employees Total Case Rate Hydra-Lock Corporation
Hydra-Lock Corporation (22 employees, TCR 5.0) among 29 same-industry peers, split at the industry median of 71 employees and a TCR of 2.5

Hydra-Lock Corporation has fewer employees than the Arbors (i.e., a machine tool accessory) median and a higher injury rate than the industry's median TCR of 2.5. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 5.7 5.7 1 0 0
2022 4.8 0.0 1 0 0
2021 4.4 4.4 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

333515 · MI · Mt. Clemens

221 Arbors (i.e., a machine tool accessory) manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 11 employers in Mt. Clemens, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR GWS Tool LLC - TN 5.0 TCR
NAICS-TCR Contract Machining and Manufacture 4.9 TCR
NAICS-TCR Alliance CNC, LLC 4.9 TCR
NAICS-TCR Fineline Metal Fabricators Inc. 4.8 TCR
STATE-SIZE Skymint Silo59 Production Facility 22 FTE
STATE-SIZE PRT Brighton 22 FTE
STATE-SIZE Cadillac Renewable Energy 22 FTE
STATE-SIZE Benzonia 22 FTE
CITY-NEAR McLaren Macomb 2,007 FTE
CITY-NEAR Martha T. Berry MCF 290 FTE
CITY-NEAR Powder Cote II 289 FTE
CITY-NEAR Macomb SC 194 FTE
NAT-TCR Golden Gate Rehabilitation & Health Care 5.0 TCR
NAT-TCR Az Cmop 5.0 TCR
NAT-TCR Huckleberry's #636 5.0 TCR
NAT-TCR Landis Mechanical Group Inc 5.0 TCR
NAT-SIZE Interstate Erecting Inc 22 FTE
NAT-SIZE Texas Airzone LLC 22 FTE
NAT-SIZE SJS 22 FTE
NAT-SIZE Lakeshore Railcar and Tanker Services 22 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022, 2021. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.