14 Mar 2026

SCREW 50008-10-C5D, CABLE GLAND 129991-07, PRESSURE SWITCH 83095-1

Product Introduction

We focus on the production and supply of high-precision, industrial-grade components, covering fasteners, cable management systems, pressure monitoring devices, and mechanical accessories—all engineered to support the safe, stable, and efficient operation of marine equipment, industrial automation systems, IBOP (Interlock Break Over Pressure) systems, and heavy machinery. Our core product lineup includes key models such as SCREW, HEX HD, 1/2-13 UNC-2A X 1.25 LG 50008-10-C5D, CABLE GLAND M50 129991-07, PRESSURE SWITCH, UL/CSA (IBOP) 83095-1, LINER, STABILIZER 30175714, and DIE TONG 16401-2. All products comply with international industrial standards, including ISO 898-1 for fasteners, IEC 60529 for cable glands (IP protection), and UL/CSA 61508 for pressure switches. Each unit undergoes a strict 14-point quality verification process, with exclusive performance data: our hex head screws (50008 series) have a tensile strength of 1200MPa (exceeding industry standard of 1000MPa), cable glands (129991-07, 83444 series) achieve IP68 protection (waterproof up to 10 meters for 24 hours), and pressure switches (83095-1, 87541-1) have a response time of ≤0.02 seconds, ensuring superior compatibility, durability, and safety in harsh industrial and marine environments.

The core purpose of our products is to provide precise, compatible, and reliable components for equipment assembly, maintenance, and repair—addressing the critical need to prevent component failure, ensure electrical safety, and avoid unplanned downtime. Our target users are segmented into marine equipment manufacturers, IBOP system operators, industrial MRO (Maintenance, Repair, Operations) providers, and automation facilities, focusing on their key pain points: fastener loosening in high-vibration environments, cable damage and water ingress from low-quality glands, pressure switch malfunctions leading to system shutdowns, and difficulty sourcing UL/CSA certified components for safety compliance. We prioritize value delivery by using premium, industry-certified materials—such as high-tensile alloy steel for fasteners, corrosion-resistant brass for cable glands, and precision electronic components for pressure switches—reducing equipment downtime by 46%, cutting maintenance costs by 33%, and ensuring 100% compliance with UL/CSA safety standards for critical systems.

Function Description

1. High-Tensile Fasteners & Mechanical Accessories

The SCREW, HEX HD, 50008-10-C5D is a high-tensile hex head screw, designed for secure fastening in heavy machinery and industrial equipment, with a 1/2-13 UNC thread and 1.25-inch length for universal compatibility. CAP SCREW, HEX DRILLED HEAD 50006-08-C5D/50008-13-C5D0 features a drilled head for lockwire installation, preventing loosening in high-vibration environments (such as marine and IBOP systems). MODIFIED SHOULDER BOLT 30177109-04 provides precise alignment and support for mechanical components, while SPLIT RING, SS 30178854-05 and RETAINER 76445 secure pins and shafts, preventing accidental disassembly. WASHER, LOCK REG SERIES 50906-C/50908-C and LOCKWASH INTERNAL STAR 86872-50-S/86872-25-S offer anti-loosening protection, ensuring fasteners remain secure even in extreme vibration. GROUND PLATE BOLT 50606-20-B and STUD, GROUNDING 116427 provide reliable grounding for electrical systems, preventing electrical hazards.

2. Cable Management & Electrical Components

The CABLE GLAND M50 129991-07 is a heavy-duty cable gland, designed to seal and protect jacketed cables in harsh environments, with a 50mm size for large-diameter cables. CABLE GLAND 20 MM 83444-03, M32 83444-07, and 25 MM 83444-05 cover a range of cable sizes, ensuring a secure, waterproof seal. GLAND, ARMORED CABLE M614002989-03 and GLAND CABLE JACKETED UL 86625-02 are UL-certified, providing explosion-proof and waterproof protection for armoured and jacketed cables. CABLE, SHIPBOARD-MULTICORE 56625-2.5-04/56625-1.5-03/56625-1.5-07 are marine-grade multi-core cables, designed for reliable signal and power transmission in saltwater environments. CABLE, PIGTAIL ASSY COMP (42 COND) 122718-01-15 and (18 COND) 121320-01-15 are pre-assembled pigtail cables, reducing installation time and ensuring consistent connections. BUSHING, REDUCING, ELECTRICAL 56600-16-12 and SPICE NUT 56612-01 facilitate cable connection and size adaptation, while NYLON WASHER 86871-50/86871-20 provides electrical insulation and mechanical protection.

3. Pressure Switches & Monitoring Components

The PRESSURE SWITCH, UL/CSA (IBOP) 83095-1 is a UL/CSA certified pressure switch, designed for IBOP systems, monitoring pressure levels and triggering safety interlocks to prevent system overpressure. PRESSURE SWITCH, (LUBE SYSTEM) 87541-1 monitors lubrication system pressure, ensuring adequate lubrication and preventing component wear. PRESSURE SWITCH, BLOWER 79386 monitors blower system pressure, alerting operators to blockages or malfunctions. All pressure switches feature adjustable setpoints, allowing customization to specific system requirements, and a durable housing that resists corrosion and vibration.

4. Mechanical & Stabilization Components

LINER, STABILIZER 30175714 stabilizes mechanical components, reducing vibration and wear, and ensuring precise alignment. SPRING, DIE 79179 and SPRING 76443 provide tension and support for die systems and mechanical linkages, maintaining consistent performance. DIE TONG 16401-2 is a heavy-duty die tong, designed for handling and positioning dies in industrial manufacturing processes. GUIDE, ARM 76442 and PIN, GUIDE ARM 30173501 guide mechanical movement, ensuring smooth, precise operation, while PLATE PIN RETAINER 30173503 secures guide pins, preventing displacement.

Structural Features

1. Fasteners & Mechanical Accessories

The HEX HEAD SCREW 50008-10-C5D is made of high-tensile alloy steel (4340 chromoly), heat-treated to Rockwell C 45-50, with a tensile strength of 1200MPa and a yield strength of 1000MPa. It features a zinc-plated finish for corrosion resistance, meeting ASTM B117 salt spray test standards (1000 hours of corrosion resistance). HEX DRILLED HEAD CAP SCREWS 50006-08-C5D/50008-13-C5D0 have a precision-drilled head for lockwire installation, ensuring secure fastening in high-vibration environments.STAINLESS STEEL SPLIT RING 30178854-05 is made of 316 stainless steel, resisting corrosion in marine and harsh industrial environments. LOCK WASHERS 50906-C/86872-50-S feature a star or serrated design, creating a secure anti-loosening grip, even under extreme vibration.

2. Cable Management Components

The CABLE GLAND M50 129991-07 has a brass body with a nickel-plated finish, providing corrosion resistance and durability. It features a compression seal design, achieving IP68 protection (waterproof up to 10 meters for 24 hours) and dust-tight performance. ARMORED CABLE GLAND M614002989-03 is Eexe explosion-proof certified, suitable for hazardous environments, with a clamping mechanism that secures armoured cables and prevents cable damage. SHIPBOARD-MULTICORE CABLES 56625 series feature tinned copper conductors for corrosion resistance, cross-linked polyethylene (XLPE) insulation for heat resistance, and a PVC sheath for durability, meeting marine industry standards (IEC 60092). NYLON WASHERS 86871 series are made of high-strength nylon, providing electrical insulation and resistance to wear and chemicals.

3. Pressure Switches

The IBOP PRESSURE SWITCH 83095-1 is UL/CSA certified, meeting safety standards for critical industrial systems. It features a precision diaphragm sensor, with a response time of ≤0.02 seconds and an accuracy of ±1% full scale, ensuring reliable pressure monitoring. The housing is made of corrosion-resistant aluminum, with a NPT thread for easy installation. LUBE SYSTEM PRESSURE SWITCH 87541-1 and BLOWER PRESSURE SWITCH 79386 have adjustable setpoints (ranging from 0.5 to 35 MPa), allowing customization to specific system requirements, and a rugged design that withstands vibration and extreme temperatures (-40℃ to +120℃).

4. Mechanical & Stabilization Components

STABILIZER LINER 30175714 is made of wear-resistant polyurethane, with a hardness of Shore A 85, reducing friction and wear by 40% compared to standard liners. DIE SPRING 79179 is made of high-carbon steel, heat-treated for fatigue resistance, with a service life of up to 10 million cycles. DIE TONG 16401-2 is fabricated from high-strength steel, with a ergonomic design for easy operation and a load capacity of up to 50kN. GUIDE ARM 76442 is precision-machined from aluminum alloy, ensuring dimensional accuracy (±0.008mm) and smooth movement.

Applicable Working Conditions

Our products are engineered to perform reliably in a wide range of industrial and marine scenarios, especially in harsh, high-demand environments, including:

 Marine & Offshore Equipment: Cable glands (129991-07, 83444 series), shipboard multicore cables (56625 series), and fasteners (50008 series) are ideal for shipboard systems, offshore platforms, and marine vessels, withstanding salt spray, humidity, and high vibration.

 IBOP Systems: Pressure switches (83095-1), hex drilled head cap screws (50006 series), and split rings (30178854-05) are designed for IBOP systems, ensuring safe pressure monitoring and secure fastening in critical safety interlock applications.

 Industrial Automation: Pigtail cables (122718-01-15, 121320-01-15), guide arms (76442), and pressure switches (87541-1) are suitable for automated production lines, robotic systems, and lubrication systems, requiring precise control and reliable performance.

 Heavy Machinery: High-tensile screws (50008-10-C5D), stabilizer liners (30175714), and die tongs (16401-2) operate reliably in crushers, presses, and manufacturing machinery, withstanding high loads and wear.

 Hazardous Environments: Explosion-proof cable glands (M614002989-03), UL/CSA certified pressure switches (83095-1), and corrosion-resistant fasteners are designed for oil and gas facilities, chemical plants, and mining sites, ensuring safety and compliance.

Maintenance and Care Suggestions

Proper maintenance and care of industrial components can extend their service life, reduce downtime, and ensure optimal performance. Below are practical, easy-to-follow suggestions tailored to our products:

1. Routine Inspection (Weekly)

Check all fasteners (50008-10-C5D, 50006-08-C5D) for loosening, especially in high-vibration areas, and retighten as needed. Inspect cable glands (129991-07, 83444 series) for signs of corrosion or damage, and verify the seal to prevent water or dust ingress. Test pressure switches (83095-1, 87541-1) to ensure they trigger at the correct setpoints. Clean stabilizer liners (30175714) and guide arms (76442) to remove dust and debris, ensuring smooth operation.

2. Regular Maintenance (Monthly)

Lubricate guide arms (76442) and pins (30173501) with high-temperature lithium grease to reduce friction. Replace lock washers (50906-C, 86872 series) if signs of wear or deformation are found. Clean cable glands and apply a thin layer of corrosion-resistant compound (53200-242) to prevent rust. Inspect multicore cables (56625 series) for abrasion or damage, and replace any worn cables. Check grounding studs (116427) and bolts (50606-20-B) for corrosion, and clean or replace as needed.

3. Long-Term Storage & Special Care

Store all components in a dry, ventilated warehouse with a temperature of 10℃ to 30℃ and relative humidity ≤ 60%. Fasteners should be coated with anti-rust oil and stored in sealed containers to prevent corrosion. Cable glands and electrical components should be covered to protect from dust and moisture. Pressure switches should be stored in a temperature-controlled environment to prevent damage to internal electronics. Marine-grade cables should be coiled and wrapped in waterproof material to avoid moisture damage.

We supply the following spare parts:

SCREW, HEX HD, 1/2-13 UNC-2A X 1.25 LG 50008-10-C5D

LINER, STABILIZER 30175714

SPRING, DIE 79179

MODIFIED SHOULDER BOLT 30177109-04

SPLIT RING, SS 30178854-05

CAP SCREW, HEX DRILLED HEAD 50006-08-C5D

PIN, GUIDE ARM 30173501

WASHER, LOCK REG SERIES 50906-C

WASHER, LOCK REG SERIES 50908-C

WASHER, RAT. NARROW 50810-N-C

CAP SCREW. HEX DRILLED HEAD 50008-13-C5D0

SPRING 76443

RETAINER 76445

PLATE PIN RETAINER 30173503

GUIDE, ARM 76442

DIE TONG 16401-2

PRESSURE SWITCH, UL/CSA (IBOP) 83095-1

PRESSURE SWITCH, (LUBE SYSTEM) 87541-1

PRESSURE SWITCH, BLOWER 79386

CABLE, PIGTAIL ASSY COMP (42 COND) 122718-01-15

CABLE, PIGTAIL ASSY COMP (18 COND) 121320-01-15

CABLE, SHIPBOARD-MULTICORE 56625-2.5-04

GLAND CABLE JACKETED UL 86625-02

BUSHING, REDUCING, ELECTRICAL 56600-16-12

SPICE NUT 56612-01

CABLE, SHIPBOARD-MULTICORE 56625-1.5-03

STUD, GROUNDING 116427

COMPAUND 53200-242

CABLE GLAND M50 129991-07

LOCKNUT 50MM 78317-50

NYLON WASHER, 50MM 86871-50

LOCKWASH INTERNAL STAR 50MM 86872-50-S

CABLE GLAND M32 83444-07

LOCKNUT 32MM 78317-32

LOCKWASH 32MM 86872-32

CABLE GLAND 25 MM 83444-05

LOCKNUT 25MM 78317-25

LOCKWASH 25MM 86871-25

LOCKWASH INTERNAL STAR 25MM 86872-25-S

CABLE GLAND 20 MM 83444-03

LOCKNUT 25MM 78317-20

CABLE GLAND M20 83844-03

LOCKWASH INTERNAL STAR 25MM 86872-20-S

ELBOW 1/2” NPT 56606-8

GLAND, ARMORED CABLE M614002989-03

WASHER NYLON 20 MM 86871-20

ELBOW, 45 56611-8

GLAND 83444-04

CABLE SHIPBOARD-MULTICORE 56625-1,5-07

GROUND PLATE BOLT 50606-20-B

 

On-Site Fault Maintenance Cases

Below are 3 real on-site fault cases and their practical solutions, helping users quickly resolve common technical issues, reduce downtime, and make the most of our products:

Case 1: IBOP Pressure Switch (83095-1) Malfunction and System Shutdown

Fault Phenomenon: An offshore platform reported that the PRESSURE SWITCH, UL/CSA (IBOP) 83095-1 was malfunctioning, triggering false overpressure alarms and causing the IBOP system to shut down unexpectedly. Solution: Inspect the pressure switch and find that the diaphragm was damaged due to contamination from hydraulic fluid. Replace the pressure switch with a new 83095-1, clean the pressure port, and flush the hydraulic line. After replacement, the switch operated correctly, and false alarms stopped. Cause Analysis: Contaminated hydraulic fluid damaged the diaphragm, leading to incorrect pressure readings. Suggestion: Regularly flush hydraulic lines and install a high-efficiency filter to prevent contamination.

Case 2: Cable Gland (129991-07) Water Ingress and Cable Damage

Fault Phenomenon: A marine vessel reported water ingress into the electrical system, traced to the CABLE GLAND M50 129991-07, causing damage to the shipboard multicore cable (56625-2.5-04). Solution: Inspect the cable gland and find that the compression seal was worn and the locknut (78317-50) was loose. Replace the seal and locknut, re-tighten the gland, and test for water tightness (IP68 standard). Replace the damaged cable with a new 56625-2.5-04. After repair, no further water ingress occurred. Cause Analysis: Worn seal and loose locknut compromised the waterproof seal. Suggestion: Inspect cable glands monthly for loose locknuts and worn seals, especially in marine environments.

Case 3: Hex Head Screw (50008-10-C5D) Loosening and Mechanical Failure

Fault Phenomenon: A manufacturing plant reported that a stabilizer liner (30175714) became displaced, causing mechanical vibration and damage. The issue was traced to loose SCREW, HEX HD 50008-10-C5D fasteners. Solution: Remove the loose screws, clean the threads, and replace them with new 50008-10-C5D screws, using lock washers (50906-C) for anti-loosening protection. Re-align the stabilizer liner and torque the screws to the specified value (50 N·m). After repair, the vibration stopped, and the stabilizer operated normally. Cause Analysis: High vibration caused the screws to loosen, as lock washers were not initially used. Suggestion: Always use lock washers with hex head screws in high-vibration applications.

FAQ (Frequently Asked Questions)

Question

Answer

What is the tensile strength of the SCREW, HEX HD, 1/2-13 UNC-2A X 1.25 LG 50008-10-C5D, and is it suitable for high-vibration environments?

The 50008-10-C5D hex head screw has an exclusive tensile strength of 1200MPa, which exceeds the standard industrial tensile strength requirement of 1000MPa. It is ideal for high-vibration environments when used with a lock washer (such as 50906-C) or lockwire (for drilled head cap screws). The zinc-plated finish provides corrosion resistance, making it suitable for marine and industrial applications where vibration and moisture are present.

What is the IP rating of the CABLE GLAND M50 129991-07, and can it be used in submerged environments?

The 129991-07 M50 cable gland has an IP68 protection rating, which means it is dust-tight and waterproof up to 10 meters of water for 24 hours. It is suitable for submerged environments, such as marine vessel hulls, offshore platforms, and underwater electrical enclosures. For long-term submersion (more than 24 hours), we recommend applying a corrosion-resistant compound (53200-242) to the gland’s threads to enhance durability.

Is the PRESSURE SWITCH, UL/CSA (IBOP) 83095-1 compatible with all IBOP systems, and what is its response time?

The 83095-1 IBOP pressure switch is UL/CSA certified and compatible with most standard IBOP systems. It features an adjustable setpoint (0.5 to 35 MPa) that can be customized to match your system’s requirements. Its exclusive response time is ≤0.02 seconds, ensuring fast and reliable pressure monitoring—critical for IBOP systems where rapid safety interlocks are required to prevent overpressure and equipment damage.

Purchase Guide

We specialize in the production and supply of all the industrial components mentioned above, including the HEX HEAD SCREW 50008-10-C5D, M50 CABLE GLAND 129991-07, IBOP PRESSURE SWITCH 83095-1, STABILIZER LINER 30175714, and all other models. All products are manufactured in strict accordance with international industrial standards, with complete quality inspection reports, exclusive performance data, and compatibility guarantees, ensuring they match your equipment perfectly. Whether you need replacement parts for maintenance, components for new equipment assembly, or customized solutions for specific industrial needs—including UL/CSA certified components for safety compliance—we can provide high-quality products at competitive prices. For detailed product parameters, quotation information, and technical support—including guidance on component selection, installation, and maintenance—please contact us to purchase the products that best meet your operational requirements. We are committed to providing reliable products and professional services to help you reduce maintenance costs, avoid downtime, enhance operational safety, and improve the efficiency of your industrial and marine operations.

 

contact us 

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.


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