MADDEN BOLT CORPORATION
13420 HEMPSTEAD ROAD, HOUSTON, TX 77040 · NAICS 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Jul 27, 2026#349076737Jul 27, 2026OpenReferral (C) · Partial scope, SafetyOpen#349076737$00 viol.0 violations$0 in penalties
Inspection #349076737
Dates
- Opened
- Jul 27, 2026
- Closing Conference Date
- Jul 27, 2026
- Closed
- Open
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 100
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 13420 Hempstead Road, Houston, TX 77040
- Industry
- 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Feb 23, 2022#345798664Feb 23, 2022Follow-Up (F) · Partial scope, Safety#345798664$00 viol.0 violations$0 in penalties
Inspection #345798664
Dates
- Opened
- Feb 23, 2022
- Closing Conference Date
- Feb 23, 2022
- Closed
- Jun 6, 2022
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 162
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 13420 Hempstead Road, Houston, TX 77040
- Industry
- 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Follow-Up Inspection: This inspection record is categorized as a follow-up inspection in the DOL OSHA enforcement data. Follow-up inspections are used by OSHA after earlier enforcement activity and can be used to check later compliance status.
Feb 23, 2022#345798607Feb 23, 2022Referral (C) · Partial scope, Safety#345798607$10,0491 viol.1 violation$10,049 in penalties
Inspection #345798607
Dates
- Opened
- Feb 23, 2022
- Closing Conference Date
- Feb 23, 2022
- Final Order
- Jul 1, 2022
- Closed
- Aug 1, 2022
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 162
- Related Activity
- 2 referrals
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 serious
- Initial Penalties
- $14,357
- Penalties on Record
- $10,049
- Site Address
- 13420 Hempstead Road, Houston, TX 77040
- Industry
- 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Incident Investigation Summaries
Incident investigation summaries linked to this inspection through OSHA's accident and injury enforcement data. These summaries describe the reported incident. The enforcement outcome for the linked inspection is in the inspection details above.
Employee fractures arm and incurs lacerations when apron is
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 10 | 12 | $14,357 | $10,049 | Jul 5, 2022 | - | Jul 1, 2022 |
Jun 9, 2017#342386042Jun 9, 2017Complaint (B) · Partial scope, Safety#342386042$30,9606 viol.6 violations$30,960 in penalties
Inspection #342386042
Dates
- Opened
- Jun 9, 2017
- Closing Conference Date
- Jun 9, 2017
- Contested
- Jul 26, 2017
- Final Order
- Apr 26, 2018
- Closed
- Feb 4, 2021
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 127
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 6
- Violation Types
- 4 serious, 2 other-than-serious
- Initial Penalties
- $73,498
- Penalties on Record
- $30,960
- Site Address
- 13420 Hempstead, Houston, TX 77040
- Industry
- 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (6 of 6 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C04 I | Serious | 1 | 5 | $12,548 | $7,529 | Jul 19, 2017 | Jul 26, 2017 | Apr 26, 2018 |
| 01002 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 F01 | Serious | 1 | 2 | $8,963 | $5,378 | Jul 19, 2017 | Jul 26, 2017 | Apr 26, 2018 |
| 02001 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Other | 2 | 2 | $25,097 | $0 | Jul 19, 2017 | Jul 26, 2017 | Apr 26, 2018 |
| 02002A | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 D01 | Serious | 1 | 2 | $17,927 | $12,675 | Jul 19, 2017 | Jul 26, 2017 | Apr 26, 2018 |
| 02002B | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 E01 I | Serious | 1 | 2 | $0 | $0 | Jul 19, 2017 | Jul 26, 2017 | Apr 26, 2018 |
| 03001 | 1904.39 Reporting Fatalities, Hospitalizations, Amputations, and Losses of an Eye OSHA citation code: 19040039 A02 | Other | 1 | 1 | $8,963 | $5,378 | Jul 10, 2017 | Jul 26, 2017 | Apr 26, 2018 |
Sep 10, 2014#339950024Sep 10, 2014Planned (H) · Complete scope, Safety#339950024$14,40012 viol.12 violations$14,400 in penalties
Inspection #339950024
Dates
- Opened
- Sep 10, 2014
- Closing Conference Date
- Oct 2, 2014
- Contested
- Feb 25, 2015
- Final Order
- Nov 27, 2015
- Closed
- Feb 17, 2016
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 130
Violations and Penalties
- Total Violations
- 12
- Violation Types
- 10 serious, 2 other-than-serious
- Initial Penalties
- $28,800
- Penalties on Record
- $14,400
- Site Address
- 13420 Hempstead, Houston, TX 77040
- Industry
- 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (6 of 12 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C04 II B | Serious | 1 | 2 | $4,500 | $2,250 | Mar 11, 2015 | Feb 25, 2015 | Nov 27, 2015 |
| 01001B | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 D03 | Serious | 1 | 2 | $0 | $0 | Feb 25, 2015 | Feb 25, 2015 | Nov 27, 2015 |
| 01002A | 1910.157 Portable Fire Extinguishers OSHA citation code: 19100157 C04 | Serious | 4 | 4 | $2,700 | $1,350 | Feb 25, 2015 | Feb 25, 2015 | Nov 27, 2015 |
| 01002B | 1910.157 Portable Fire Extinguishers OSHA citation code: 19100157 E03 | Serious | 6 | 7 | $0 | $0 | Feb 25, 2015 | Feb 25, 2015 | Nov 27, 2015 |
| 01003 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 3 | 3 | $4,500 | $2,250 | Feb 25, 2015 | Feb 25, 2015 | Nov 27, 2015 |
| 01004 | 1910.219 Mechanical Power-Transmission Apparatus OSHA citation code: 19100219 B01 | Serious | 1 | 1 | $4,500 | $2,250 | Feb 25, 2015 | Feb 25, 2015 | Nov 27, 2015 |
Showing the 6 violations listed first by citation identifier. This inspection has 12 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Aug 21, 2014#339921868Aug 21, 2014FatalityFatality/Catastrophe (M) · Partial scope, SafetyFatality#339921868$4,5002 viol.2 violations$4,500 in penalties
Inspection #339921868
Dates
- Opened
- Aug 21, 2014
- Closing Conference Date
- Aug 22, 2014
- Contested
- Feb 24, 2015
- Final Order
- Nov 27, 2015
- Closed
- Feb 17, 2016
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 130
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 serious
- Initial Penalties
- $9,000
- Penalties on Record
- $4,500
- Site Address
- 13420 Hempstead, Houston, TX 77040
- Industry
- 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
Fatality/Catastrophe Inspection: This inspection record is categorized as a fatality/catastrophe inspection in the DOL OSHA enforcement data.
Incident Investigation Summaries
Incident investigation summaries linked to this inspection through OSHA's accident and injury enforcement data. These summaries describe the reported incident. The enforcement outcome for the linked inspection is in the inspection details above.
Employee struck by object from explosion is killed
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.243 Guarding of Portable Powered Tools OSHA citation code: 19100243 C01 | Serious | 2 | 2 | $4,500 | $2,250 | Feb 25, 2015 | Feb 24, 2015 | Nov 27, 2015 |
| 01003 | 1910.253 Oxygen-Fuel Gas Welding and Cutting OSHA citation code: 19100253 B02 II | Serious | 1 | 1 | $4,500 | $2,250 | Feb 25, 2015 | Feb 24, 2015 | Nov 27, 2015 |
Aug 8, 2006#308593805Aug 8, 2006Follow-Up (F) · Partial scope, Health#308593805$01 viol.1 violation$0 in penalties
Inspection #308593805
Dates
- Opened
- Aug 8, 2006
- Closing Conference Date
- Aug 8, 2006
- Closed
- Sep 21, 2006
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 52
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 13420 Hempstead Hwy, Houston, TX 77040
- Industry
- 332996 Fabricated Pipe and Pipe Fitting Manufacturing
Follow-Up Inspection: This inspection record is categorized as a follow-up inspection in the DOL OSHA enforcement data. Follow-up inspections are used by OSHA after earlier enforcement activity and can be used to check later compliance status.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.1200 Hazard Communication OSHA citation code: 19101200 E01 I | Other | 1 | 43 | $0 | $0 | Sep 19, 2006 | - | - |
Aug 24, 2005#308588185Aug 24, 2005Complaint (B) · Partial scope, Health#308588185$9,30027 viol.27 violations$9,300 in penalties
Inspection #308588185
Dates
- Opened
- Aug 24, 2005
- Closing Conference Date
- Nov 16, 2005
- Closed
- Feb 24, 2006
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 52
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 27
- Violation Types
- 25 serious, 2 other-than-serious
- Initial Penalties
- $12,750
- Penalties on Record
- $9,300
- Site Address
- 13420 Hempstead Hwy, Houston, TX 77040
- Industry
- 332996 Fabricated Pipe and Pipe Fitting Manufacturing
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Chemical Exposure Sampling13 substances sampled
Air monitoring samples collected by OSHA during this inspection. Results grouped by substance.
| Substance | Samples | Result Range | Unit |
|---|---|---|---|
| Antimony and Compounds (as Sb) | 2 | 0 | mg/m³ |
| Beryllium and Beryllium Compounds (as Be) | 2 | 0 | mg/m³ |
| Cadmium | 2 | 0 | mg/m³ |
| Chromium, Metal and Insoluble Salts | 2 | 0 | mg/m³ |
| Cobalt, Metal, Dust and Fume (as Co) | 2 | 0 | mg/m³ |
| Copper Fume (as Cu) | 2 | 0 | mg/m³ |
| Iron Oxide Fume | 2 | 0.0469947 - 0.1433291 | mg/m³ |
| Lead, Inorganic (as Pb) | 2 | 0 | mg/m³ |
| Manganese Fume (as Mn) | 2 | 0.005194 - 0.026411 | mg/m³ |
| Molybdenum (as Mo), Insoluble Compounds (Total Dust) | 2 | 0 | mg/m³ |
| Nickel, Metal and Insoluble compounds (as Ni) | 2 | 0 | mg/m³ |
| Vanadium fume (as V2O5) | 2 | 0 | mg/m³ |
| Zinc Oxide Fume | 2 | 0 - 0.2811432 | mg/m³ |
Violations
Violation list (6 of 27 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.22 Walking-Working Surfaces - General Requirements OSHA citation code: 19100022 A01 | Other | 1 | 10 | $1,750 | $500 | Dec 14, 2005 | - | - |
| 01002 | 1910.36 Design and Construction Requirements for Exit Routes OSHA citation code: 19100036 G02 | Other | 2 | 10 | $1,000 | $500 | Dec 14, 2005 | - | - |
| 01003A | 1910.38 Emergency Action Plans OSHA citation code: 19100038 A01 | Serious | 1 | 46 | $1,000 | $650 | Dec 14, 2005 | - | - |
| 01003B | 1910.39 Fire Prevention Plans OSHA citation code: 19100039 A | Serious | 1 | 46 | $0 | $0 | Dec 14, 2005 | - | - |
| 01004A | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 C01 | Serious | 5 | 5 | $2,500 | $1,625 | Jan 9, 2006 | - | - |
| 01004B | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 D01 | Serious | 5 | 5 | $0 | $0 | Jan 9, 2006 | - | - |
Showing the 6 violations listed first by citation identifier. This inspection has 27 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Source: U.S. Department of Labor OSHA incident investigation data (`osha_accident` + `osha_accident_injury`). Linked via `rel_insp_nr` to the inspection activity number (exact government key). Injury, body part, source and event values are OSHA's own codes. OSHA states that these fields are not coded according to the requirements under the Occupational Injury and Illness Classification System (OIICS). Only the values present in the OSHA record are listed; an incident with no value that resolves in OSHA's code table shows "Injury details not recorded". Where a record covers several people, each field lists every value recorded across them.
Source: OSHA chemical exposure sampling data (OSHA Information System). P = Personal (worker breathing zone), A = Area (general air). Rows marked QC are analytical quality control measurements, not chemical exposures. OSHA PEL (Permissible Exposure Limit) values from the OSHA Occupational Chemical Database, matched via IMIS substance code (analyte code) (exact government key).
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
8 inspections, 2005 to 2026. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.
Standards cited
Chemical exposure sampling
Industry comparison
Primary Metal Manufacturing, 8,699 employers with OSHA inspections. Arithmetic from DOL records.