This OSHA Safety Lockout/Tagout (LOTO) Padlock represents the ultimate combination of extended reach and hierarchical key control — featuring a Long Metallic Shackle (76–80mm) paired with a Master Key (MK) System. Each padlock carries its own unique individual key for personal worker accountability, while a single Master Key held by the supervisor or safety officer can open every lock in the entire set.
The extended long shackle bridges the gap where standard 38–40mm locks physically cannot reach — covering thick valve stems, heavy chains, oversized hasps, deep lockout points and large industrial hardware — while the Master Key system ensures that no energy isolation point is ever inaccessible in a genuine emergency. This SKU is the preferred specification for large-scale industrial LOTO programs with strict safety hierarchies.
Fully compliant with OSHA CFR 29 Part 1910.147 for the Control of Hazardous Energy.
🔧 TECHNICAL SPECIFICATIONS
| Parameter |
Details |
| Body Material |
Glass Fiber Reinforced Nylon / High-Impact ABS Composite |
| Shackle Material |
Zinc-Plated / Carbide Hardened Steel |
| Shackle Type |
Long Metallic Shackle |
| Shackle Height |
76 mm – 80 mm |
| Body Width |
40 mm |
| Body Size |
Approx. 45mm (H) × 40mm (W) × 20mm (D) |
| Shackle Diameter |
6 mm – 6.5 mm |
| Key System |
Master Key (MK) – Each lock has unique key + 1 Master Key opens all |
| Key Retaining |
Yes – Key removable only when padlock is in locked position |
| Lock Cylinder |
Copper alloy – spark-free, anti-friction design |
| No. of Keys Included |
2 unique individual keys per lock + 1 Master Key (per set) |
| Operating Temperature |
0°F to 250°F / -20°C to 120°C |
| Resistance |
Waterproof, Corrosion Resistant, UV Resistant, Non-Silicon |
| Shackle Clearance |
76–80mm — fits thick hasps, chains, valve stems & oversized lockout devices |
| Color Options |
Red, Blue, Yellow, Green, Orange, White, Purple, Black |
| Compliance Standard |
OSHA CFR 29 Part 1910.147 (LOTO) |
| Management Levels |
2-Level Hierarchy – Individual Key + Master Key |
✅ KEY FEATURES
- ✔ Complies with OSHA LOTO Standard (CFR 1910.147)
- ✔ Extended Long Shackle (76–80mm) — accesses deep, thick & oversized lockout points
- ✔ Master Key system — supervisor/safety officer full emergency override
- ✔ Each worker retains own unique key — individual accountability maintained
- ✔ Key retaining feature — cannot be left accidentally unlocked
- ✔ Hardened steel shackle — superior cut, pull & pry resistance
- ✔ Anti-rust, anti-corrosion zinc-plated shackle coating
- ✔ Non-conductive, lightweight body for varied industrial use
- ✔ Color-coded options for department & team LOTO identification
- ✔ Laser-engraved serial/ID numbers available for program management
📏 SHACKLE SIZE COMPARISON
| Shackle Type |
Shackle Height |
Best Used For |
| Standard Shackle |
38–40 mm |
Standard panels, regular hasps, lockout stations |
| Long Shackle |
76–80 mm |
Thick valves, chains, deep lockout points, oversized hasps |
| Extra Long Shackle |
100mm+ |
Heavy industrial chains, large gate & perimeter locks |
🔑 COMPLETE KEY SYSTEM COMPARISON
| Feature |
Alike Key (AK) |
Different Key (DK) |
Master Key (MK) |
| Individual Lock Key |
Same for all |
Unique per lock |
Unique per lock |
| Master Override |
❌ |
❌ |
✅ Yes |
| Emergency Access |
❌ |
❌ |
✅ Supervisor only |
| Key Sharing |
All users |
Never |
Never (except MK) |
| Security Level |
Moderate |
Maximum |
High + Controlled |
| Best For |
Group LOTO |
Strict individual |
Supervised team LOTO |
🏭 LONG SHACKLE + MASTER KEY — CRITICAL USE SCENARIOS
| Situation |
Why This SKU is the Best Fit |
| Thick valve or chain lockout point |
Long shackle clears the physical gap |
| Worker incapacitated / emergency |
Master Key gives supervisor instant access |
| Large team with individual accountability |
Each worker has own unique key |
| Audit or compliance inspection |
Supervisor can verify all locks with MK |
| Multi-shift with safety manager oversight |
MK ensures continuity across shifts |
| Deep-set industrial hasp lockout |
76–80mm shackle fits where standard won't |
📦 APPLICATIONS
- Large valve stems, gate valves & thick pipeline isolation
- Oversized circuit breaker & heavy switchgear lockout
- Chain, cable & conveyor lockout on heavy machinery
- Multi-lock group hasp programs with supervisory control
- Oil, gas, petrochemical & refinery LOTO programs
- Steel plant, heavy manufacturing & press maintenance
- Construction equipment & crane isolation
- Any deep or oversized lockout point requiring extended shackle + emergency master access
This OSHA Safety Lockout/Tagout (LOTO) Padlock represents the ultimate combination of extended reach and hierarchical key control — featuring a Long Metallic Shackle (76–80mm) paired with a Master Key (MK) System. Each padlock carries its own unique individual key for personal worker accountability, while a single Master Key held by the supervisor or safety officer can open every lock in the entire set.
The extended long shackle bridges the gap where standard 38–40mm locks physically cannot reach — covering thick valve stems, heavy chains, oversized hasps, deep lockout points and large industrial hardware — while the Master Key system ensures that no energy isolation point is ever inaccessible in a genuine emergency. This SKU is the preferred specification for large-scale industrial LOTO programs with strict safety hierarchies.
Fully compliant with OSHA CFR 29 Part 1910.147 for the Control of Hazardous Energy.
🔧 TECHNICAL SPECIFICATIONS
| Parameter |
Details |
| Body Material |
Glass Fiber Reinforced Nylon / High-Impact ABS Composite |
| Shackle Material |
Zinc-Plated / Carbide Hardened Steel |
| Shackle Type |
Long Metallic Shackle |
| Shackle Height |
76 mm – 80 mm |
| Body Width |
40 mm |
| Body Size |
Approx. 45mm (H) × 40mm (W) × 20mm (D) |
| Shackle Diameter |
6 mm – 6.5 mm |
| Key System |
Master Key (MK) – Each lock has unique key + 1 Master Key opens all |
| Key Retaining |
Yes – Key removable only when padlock is in locked position |
| Lock Cylinder |
Copper alloy – spark-free, anti-friction design |
| No. of Keys Included |
2 unique individual keys per lock + 1 Master Key (per set) |
| Operating Temperature |
0°F to 250°F / -20°C to 120°C |
| Resistance |
Waterproof, Corrosion Resistant, UV Resistant, Non-Silicon |
| Shackle Clearance |
76–80mm — fits thick hasps, chains, valve stems & oversized lockout devices |
| Color Options |
Red, Blue, Yellow, Green, Orange, White, Purple, Black |
| Compliance Standard |
OSHA CFR 29 Part 1910.147 (LOTO) |
| Management Levels |
2-Level Hierarchy – Individual Key + Master Key |
✅ KEY FEATURES
- ✔ Complies with OSHA LOTO Standard (CFR 1910.147)
- ✔ Extended Long Shackle (76–80mm) — accesses deep, thick & oversized lockout points
- ✔ Master Key system — supervisor/safety officer full emergency override
- ✔ Each worker retains own unique key — individual accountability maintained
- ✔ Key retaining feature — cannot be left accidentally unlocked
- ✔ Hardened steel shackle — superior cut, pull & pry resistance
- ✔ Anti-rust, anti-corrosion zinc-plated shackle coating
- ✔ Non-conductive, lightweight body for varied industrial use
- ✔ Color-coded options for department & team LOTO identification
- ✔ Laser-engraved serial/ID numbers available for program management
📏 SHACKLE SIZE COMPARISON
| Shackle Type |
Shackle Height |
Best Used For |
| Standard Shackle |
38–40 mm |
Standard panels, regular hasps, lockout stations |
| Long Shackle |
76–80 mm |
Thick valves, chains, deep lockout points, oversized hasps |
| Extra Long Shackle |
100mm+ |
Heavy industrial chains, large gate & perimeter locks |
🔑 COMPLETE KEY SYSTEM COMPARISON
| Feature |
Alike Key (AK) |
Different Key (DK) |
Master Key (MK) |
| Individual Lock Key |
Same for all |
Unique per lock |
Unique per lock |
| Master Override |
❌ |
❌ |
✅ Yes |
| Emergency Access |
❌ |
❌ |
✅ Supervisor only |
| Key Sharing |
All users |
Never |
Never (except MK) |
| Security Level |
Moderate |
Maximum |
High + Controlled |
| Best For |
Group LOTO |
Strict individual |
Supervised team LOTO |
🏭 LONG SHACKLE + MASTER KEY — CRITICAL USE SCENARIOS
| Situation |
Why This SKU is the Best Fit |
| Thick valve or chain lockout point |
Long shackle clears the physical gap |
| Worker incapacitated / emergency |
Master Key gives supervisor instant access |
| Large team with individual accountability |
Each worker has own unique key |
| Audit or compliance inspection |
Supervisor can verify all locks with MK |
| Multi-shift with safety manager oversight |
MK ensures continuity across shifts |
| Deep-set industrial hasp lockout |
76–80mm shackle fits where standard won't |
📦 APPLICATIONS
- Large valve stems, gate valves & thick pipeline isolation
- Oversized circuit breaker & heavy switchgear lockout
- Chain, cable & conveyor lockout on heavy machinery
- Multi-lock group hasp programs with supervisory control
- Oil, gas, petrochemical & refinery LOTO programs
- Steel plant, heavy manufacturing & press maintenance
- Construction equipment & crane isolation
- Any deep or oversized lockout point requiring extended shackle + emergency master access
