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New 0S1589 Cap Screw High He Replacement suitable for Caterpillar Equipment
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Description for 0S1589 Hex Bolt
â–¶Specification for 0S1589 Hex Bolt
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Product Questions
Frequently Asked Questions
What is the Caterpillar 0S1589 high-hex cap screw?
The 0S1589 is a high-hex (tall hex head) cap screw used in Caterpillar equipment assemblies where additional wrench clearance or greater torque application is required. The taller hex head allows a larger wrench engagement area, which is especially useful in high-torque applications or where access is limited.
How does the 0S1589 differ from the standard 0S1588 cap screw?
The primary difference is the head height. The 0S1589 has a higher hex head profile than the standard 0S1588, which may be specified for applications where the greater wrench engagement reduces the risk of fastener rounding under high torque. Always use the part number specified in the service manual for the joint.
What torque should I apply to this cap screw?
Torque values for Caterpillar cap screws are specified by thread size, grade, and application in the machine's service manual. Always follow the published torque specifications and use a calibrated torque wrench. Over-torquing can strip threads or yield the fastener, while under-torquing leads to joint loosening.
Are high-strength aftermarket cap screws acceptable for CAT equipment?
Yes. High-quality aftermarket cap screws that meet or exceed OEM specifications in terms of thread class, grade, and dimensions are suitable for Caterpillar equipment. Browse our complete CAT hardware components catalog to find compatible cap screws, bolts, and other fasteners for your maintenance work.
Should I apply anti-seize to these cap screws?
Anti-seize compounds change the friction coefficient in the thread, which affects the relationship between applied torque and achieved clamping force. Only apply anti-seize if the service manual specifically calls for it, and adjust torque values accordingly as published.
Can I reuse this cap screw after removal?
Non-torque-to-yield cap screws in good condition can generally be reused if the threads are undamaged and the fastener has not been overtorqued. Clean the threads and inspect carefully before reuse in any critical joint.
What warranty does Propel Parts offer on this fastener?
All fastening hardware from Propel Parts carries a 1-year warranty against material and manufacturing defects. Same-day shipping is available on weekday orders placed before 3:00 PM ET.
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We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
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Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
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Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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