0S1588 Cap Screw for CAT Equipment

  • New Cap Screw Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$0.17
In Stock • Ships Today • Order By 3pm ET
Excellent on Trustpilot
Fit Guarantee

Exact Fit Guarantee

This part is guaranteed to fit your machine.

Wrong Part

Wrong Part?

We'll overnight correct part at no cost to you.

SKU
0S1588CTP
Secure Checkout< Secure Checkout • Trusted Since 2012
Buy Now
Also accepts PayPal and Apple Pay

Description for 0S1588 Hex Bolt

â–¶
This aftermarket Caterpillar 0S1588 Hex Bolt is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Hex Bolt.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 0S1588 Hex Bolt

â–¶
Replacement Part Number(s): 0S-1588
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 0.10 LBS | 0.05 KG
Dimensions: 1.57 x 0.35 x 0.55 (inches)
Condition: New

Exact Fit Guarantee for 0S1588 Hex Bolt

â–¶
Looking for a reliable replacement Caterpillar 0S1588 Hex Bolt ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Dimensions 1.57x0.35x0.55
Customer Reviews
  1. 100%
    At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.

    However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.

    I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.

    In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.

    Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides.
  2. 100%
    perfect service
  3. 100%
    Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
  4. 100%
    Quick Response. Very much appreciated.
  5. 100%
    Amazing Help.
    I don't know who I spoke with, but they were helpful. We will be buying those parts shortly.
Write Your Own Review
You're reviewing:0S1588 Cap Screw for CAT Equipment
Your Rating

Frequently Asked Questions

Product

What is the Caterpillar 0S1588 cap screw used for?

The 0S1588 is a standard hex head cap screw used across various Caterpillar equipment assemblies for securing covers, brackets, housings, and structural components. Cap screws are precision fasteners with controlled thread and dimensional tolerances that are critical in maintaining joint integrity under load.

What thread size and grade is the 0S1588 cap screw?

Specific thread dimensions and grade are listed in the product specifications. Always use the exact thread size and strength grade specified in the service manual for the joint ??? using a lower-grade cap screw can result in fastener failure under load.

When should I replace cap screws on my CAT equipment?

Replace cap screws that show thread damage, rounding of the hex drive, corrosion that reduces grip, or any that have been overtorqued and may have exceeded their yield strength. In safety-critical applications such as engine mounts or structural joints, replacement after any suspected overload is advisable.

Should I reuse cap screws after disassembly?

In general service applications, cap screws in good condition can often be reused. However, torque-to-yield fasteners ??? which are specifically designed for single use ??? must always be replaced. Check the service manual for the specific joint to determine if the fastener is intended for reuse.

Are high-quality aftermarket cap screws reliable for CAT equipment?

Yes. High-quality aftermarket cap screws manufactured to meet or exceed OEM specifications are used routinely in heavy equipment maintenance. For a broad range of compatible fasteners, explore our CAT hardware components catalog which covers bolts, screws, nuts, and washers across all equipment categories.

Should I apply thread-locking compound to cap screws?

Thread-locking compounds are used in specific applications where vibration loosening is a concern. Always follow the service manual guidance ??? some joints specify a particular thread locker while others require clean, dry threads for accurate torque-to-clamp-force control. Using compound where not specified can affect joint preload.

What warranty applies to this cap screw from Propel Parts?

All fastening hardware from Propel Parts carries a 1-year warranty against material defects. Same-day shipping is available on weekday orders, and 30-day returns are accepted with no hassle.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

Shipping

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.

Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Easy Returns

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.

Warranty

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.

Exact Fit Guarantee®

The right part — or we'll make it right.

1

Order Normally

Know your part number?
Simply place your order.

2

Not Sure?

Place your order, then send us your serial number before it ships.

We'll verify fit.
3

We Make It Right

Wrong part? We'll make it right.

Fast. At our expense.