Titan 858-660 Bolt, Hex Grade 8
OEM Titan High-Strength Fastener
Titan 858-660 Bolt, Hex Grade 8 is an OEM high-strength hex bolt engineered for critical fastening applications on compatible Admiral, Commander, PowrTex, PowrCoat, PowrLiner, and Hydra-M spray systems, providing superior tensile strength and shear resistance for structural connections, pump mounts, and motor attachments.
Compatibility Overview
Replacement Grade 8 hex bolt restores secure, high-strength fastening, prevents component loosening under vibration, and ensures reliable equipment operation. For related components, see the Titan Air Powered Airless Sprayer Parts collection.
Titan High-Strength Fastener Replacement
Titan 858-660 Bolt, Hex Grade 8 for Admiral, Commander, and PowrCoat Systems
Titan 858-660 is an OEM Grade 8 hex bolt engineered for critical fastening applications on compatible Titan spray systems, including Admiral, Commander, PowrTex, PowrCoat, PowrLiner, and Hydra-M models. This high-strength fastener is manufactured from medium carbon alloy steel and heat-treated to achieve a minimum tensile strength of 150,000 psi, making it essential for structural connections, pump mounts, motor attachments, and other high-stress locations where standard fasteners may fail.
| Detail | Technical / Commercial Information |
|---|---|
| Product Overview | OEM Titan Grade 8 hex bolt used for critical fastening applications on compatible Admiral, Commander, PowrTex, PowrCoat, PowrLiner, and Hydra-M spray systems. Grade 8 bolts are heat-treated medium carbon alloy steel with a minimum tensile strength of 150,000 psi, significantly stronger than Grade 5 (120,000 psi) or Grade 2 (74,000 psi) bolts. |
| Function | Provides high-strength fastening for structural connections, pump mounts, motor attachments, frame connections, and other high-stress locations. The bolt withstands high shear forces, vibration, and cyclic loading common in professional spraying equipment. Features a hexagonal head that provides positive engagement with wrenches or sockets, allowing precise torque application during installation. |
| Specifications | Thread: 1/4"-20 x 1-3/4". Grade: 8. Material: Medium carbon alloy steel, heat-treated. Minimum tensile strength: 150,000 psi. |
| Compatible Systems | Admiral 850-555/850-557; Commander 742-555/742-557; PowrTex 15-1; PowrCoat 730, 745, 940, 960, 975; PowrLiner 800, 9900XLT; Hydra-M 2000/4000; Hydra Pro Super; SuperCoat series. Verify fit using the correct parts diagram for your exact model and serial number. |
| Industrial Applications | Professional sprayer repair, motor mounting, pump attachment, structural connections, and preventive maintenance across Admiral, Commander, PowrTex, PowrCoat, PowrLiner, and Hydra-M systems used in industrial finishing, wood coating, metal finishing, line striping, protective coating, and drywall texture applications. |
| Related Parts Commonly Serviced Together | Lock nuts (858-611), trip retainers (742-905), O-rings (742-001), and mating nuts and washers used in motor mounts, pump attachments, and structural connections. Inspect these components when replacing bolts. |
| Common Problems Solved | Thread damage from stretching, galling, or corrosion; visible deformation of the bolt shank; components loosening despite proper torque; and fatigue failure in high-stress applications. |
| Signs Replacement Is Needed | Visible thread damage, stretched or deformed bolt shank, components loosening despite proper torque, corrosion compromising strength, and fatigue cracking in high-stress locations. |
| Installation & Maintenance | Ensure mating threads are clean and undamaged. Torque to the manufacturer-specified value using a calibrated torque wrench. Grade 8 bolts should not be reused if they have been subjected to excessive heat, visible damage, or stretching. Inspect bolts during routine maintenance for signs of wear or corrosion. |
| Commercial Benefits | Restores secure, high-strength fastening, prevents component loosening and misalignment, ensures reliable equipment operation, and extends equipment service life. |
The 858-660 Grade 8 Hex Bolt is a critical high-strength fastener used across multiple Titan sprayer platforms. It appears in the Commander 742-555/742-557 air motor parts diagram and is cross-referenced for Admiral, PowrTex, PowrCoat, PowrLiner, and Hydra-M models. Grade 8 bolts are manufactured from medium carbon alloy steel and heat-treated to achieve a minimum tensile strength of 150,000 psi, significantly higher than standard Grade 5 or 2 bolts. This high strength rating makes them essential for applications subject to high shear forces, vibration, and cyclic loading, such as pump mounting, motor attachment, frame connections, and suspension components. In the demanding environment of professional painting and coating equipment, fasteners are subjected to continuous vibration, thermal cycling, and exposure to moisture and chemicals. A stretched, corroded, or damaged bolt can fail under load, leading to component separation, equipment damage, or safety hazards. When replacing a Grade 8 bolt, ensure mating threads are clean and undamaged. Torque to the manufacturer-specified value using a calibrated torque wrench. Do not reuse bolts that have been subjected to excessive heat, visible damage, or stretching. Use genuine Titan components to ensure proper fit, correct material specifications, and reliable long-term operation. For related Titan air-powered sprayer components, see the Titan Air Powered Airless Sprayer Parts and Air Powered Airless Sprayer Parts collection.
Frequently Asked Questions
Quick contractor-focused answers for confirming fitment, function, and service value.
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