A strong 5/8-inch locking hitch pin delivers a secure connection, a receiver-appropriate span, and practical protection from weather, rattles, or misplaced keys; it suits trailer owners, truck users, and anyone moving hitch accessories between vehicles. The important detail is not simply the pin diameter. Receiver size, effective length, lock design, and clearance determine whether a pin fits correctly and stays convenient to use.
This roundup includes compact options for 2-inch receivers, longer designs for 2.5-inch or 3-inch setups, keyed-alike two-packs, and a combination-lock alternative. Some products emphasize corrosion-resistant coatings, rubber key-slot covers, or anti-rattle O-rings, while others prioritize unusually long spans or stainless steel construction.
Verify your receiver and hitch dimensions before choosing.
The best choice depends on your receiver and daily use. For adjustable channel mounts and 3-inch receivers, TowWorks 79830 offers a 4-1/2-inch active span, while the 2-pack version suits multiple setups. For 2-inch or 2.5-inch receivers, consider options with 3-1/2- to 4-inch effective lengths, such as the JUSTTOP, CZC AUTO, or TOWSWELL designs.
Rhino USA targets 2.5-inch Class V hitches, and AUTOBOTS avoids keys with a four-digit combination lock.
5/8" Hitch Pins: A Comparative Overview
How We Compared These Products
We compared dimensions, capacity, materials, compatibility, included components, and care requirements across many Amazon listings. These details matter because the product must fit the available space, intended use, setup requirements, and maintenance routine. After examining the wider field, we selected 10 products from TowWorks, Rhino USA, Orion Motor Tech, JUSTTOP, CZC AUTO, AUTOBOTS, TOPICK, and TOWSWELL.
The shortlist includes products such as TowWorks 79830 Keyed Alike 5/8 Trailer Hitch Lock with Extra Long 4-1/2 Span, Rhino USA 2.5” Trailer Hitch Pin – Patented 5/8 Locking Receiver Pin for Class V Hitches, and Orion Motor Tech OMT Locking Hitch Pin Set with 5/8 Pin for 2 Receiver. Every recommendation is tied to information stated for that specific product; unclear or missing features were treated as unknown rather than filled with assumptions.
Detailed Reviews: Best 5 8 Locking Hitch Pin
1. TowWorks 79830 Keyed Alike 5/8″ Trailer Hitch Lock with Extra Long 4-1/2″ Span, Double Safety Tow Hitch Locking Pin for 3″ Receivers and Adjustable Channel Mounts
Best for: Adjustable hitches and channel mounts.
The TowWorks 79830 features an extra-long 4-1/2" span, providing a secure fit for most adjustable hitches and channel mounts. Its hardened steel construction supports up to 20,000 lbs GTW, ensuring robust towing security.
Constructed from one-piece solid hardened steel processed by CNC lathe, this 5/8" pin offers exceptional strength for towing up to 20,000 lbs GTW. The black e-coated zinc plated finish resists corrosion. Rubber O-rings are included to minimize rattles and keep the pin stable, enhancing the connection between your hitch and receiver.
Product Details
| Brand | TowWorks |
|---|---|
| Compatible with Vehicle Type | Trailer |
| Item Weight | 0.58 kg |
| Manufacturer | TowWorks |
| Part Number | 79830 |
| Manufacturer Warranty Description | One-Year warranty on lock finish, lifetime warranty on lock function. |
| Material | Steel & Zinc Alloy |
Additional Product Information
| Model Number | 79830 |
|---|
Pros
- Extra-long 4-1/2" span fits adjustable hitches
- Hardened steel construction for high towing capacity
- Includes O-rings to reduce rattle
- Keyed alike for convenience
Cons
- Does not fit FASTWAY adjustable hitches
Ideal for owners of CURT channel style adjustable hitches needing a long, secure locking pin. Verify your hitch dimensions before purchase to ensure compatibility.
2. TowWorks 79832 Keyed Alike 5/8″ Trailer Hitch Lock with Extra Long 4-1/2″ Span, Double Safety Tow Hitch Locking Pin for 3″ Receivers and Adjustable Channel Mounts, 2-Pack
Best for: 2-pack for adjustable hitches.
This 2-pack of TowWorks 79832 locking hitch pins offers an extra-long 4-1/2" span, designed to fit most adjustable hitches and 3" x 3" receivers. The keyed alike feature provides enhanced convenience for multiple applications.
Each 5/8" diameter pin boasts a 4-1/2" active length, suitable for various adjustable hitches like CURT channel styles. This design ensures a secure connection for 3" x 3" hitch receivers. The keyed alike functionality means both locks operate with the same key, simplifying use for multiple trailers or vehicles.
Product Details
| Brand | TowWorks |
|---|---|
| Item Weight | 2.64 pounds |
| Item model number | 79832 |
| Manufacturer | TowWorks |
| Part Number | 79832 |
| Model | Hitch Lock |
| Package Dimensions | 10.12 x 3.46 x 1.85 inches |
Pros
- Includes two keyed alike locks
- Extra-long 4-1/2" span
- Fits 3" x 3" hitch receivers
- Compatible with CURT adjustable hitches
Cons
- Does not fit FASTWAY adjustable hitches
A practical choice for users with multiple trailers or vehicles requiring adjustable hitch compatibility. Ensure your hitch is not a FASTWAY model for proper fitment.
3. Rhino USA 2.5” Trailer Hitch Pin – Patented 5/8″ Locking Receiver Pin for Class V Hitches – Weatherproof, Anti-Theft, Debris-Protected – Tow Truck Ready – Black 1PK
Best for: Class V hitches, anti-theft.
The Rhino USA 2.5" trailer hitch pin provides ultimate security with its patented, solid steel anti-theft design. It's specifically engineered to fit Class V hitches, offering robust protection against unauthorized detachment.
Crafted from solid carbon steel, this 5/8" locking receiver pin is built for maximum security and tamper resistance, protecting your trailer and hitch from theft. Its design is weatherproof and debris-protected, ensuring reliable function. The pin fits Class V hitches (2.5" x 2.5") securely, providing a dependable connection.
Product Details
| Brand | Rhino USA |
|---|---|
| Color | Black |
| Included Components | 2 keys |
| Item Weight | 15.8 ounces |
| Item model number | HITCHPIN-P |
| Manufacturer | Rhino USA |
| Material | Carbon Steel |
Additional Product Information
| Dimensions | 9.06 x 4.06 x 1.77 inches |
|---|---|
| Size | 2.5 in – 1 Pack |
| Special Features | Dust Cover |
| Style | 1 Pack |
| Warranty Description | Unlimited Lifetime Warranty |
Pros
- Patented anti-theft design
- Solid steel construction
- Fits 2.5" Class V hitches
- Weatherproof and debris-protected
Cons
- Contains Proposition 65 warning chemicals
Best for owners of Class V hitches seeking a durable, secure, and theft-resistant locking pin. Ensure compliance with California Proposition 65 warnings if applicable.
4. OMT Locking Hitch Pin Set with 5/8″ Pin for 2 ” Receiver, Keyed Alike
Best for: 2" receivers, keyed alike.
Orion Motor Tech's locking hitch pin set features a 5/8" diameter pin with a 3.7" effective length, ensuring a secure fit for all 2" trailer receivers. Its hardened steel core offers robust protection against tampering and theft.
This 5/8" hitch pin is designed for a perfect fit in 2" trailer receivers, with a total length of 7.3 inches and an effective length of 3.7 inches to minimize movement. The hardened steel core and drop-proof design effectively deter break-ins and tampering attempts during storage or travel.
Product Details
| Brand | Orion Motor Tech |
|---|---|
| Item Weight | 11.7 ounces |
| Item model number | TPA-LOC1-AB |
| Manufacturer | Orion Motor Tech |
| Part Number | MPN1TPALOC1-AB |
| Model | locking hitch pin |
| Package Dimensions | 7.4 x 2.24 x 2.01 inches |
Additional Product Information
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
|---|
Pros
- Fits 2" trailer receivers perfectly
- Hardened steel core for security
- Drop-proof design deters theft
- Keyed alike set included
Cons
- Contains Proposition 65 warning chemicals
Suitable for owners of 2" hitch receivers who prioritize theft prevention and a secure, snug fit. Verify compatibility with your specific receiver dimensions.
5. JUSTTOP Trailer Hitch Receiver Pin Lock,5/8″ Dia 3-1/2″ Long Pin Trailer Lock for Class III IV 2″ and 2-1/2″ Receiver,Tow Hitch Pin Lock with 4 Anti-Rattle Rubber O-Rings,for Trailer Truck Car Boat
Best for: Class III/IV, anti-rattle.
The JUSTTOP trailer hitch receiver pin lock features a 5/8" diameter and 3-1/2" effective pin length, providing universal compatibility for Class III/IV 2" and 2-1/2" receivers. It includes four anti-rattle rubber O-rings for a quieter towing experience.
Designed for Class III/IV 2" and 2-1/2" hitch receivers, this 5/8" pin lock has a 3-1/2" effective length. Its black electrophoretic-painted carbon steel construction resists bending and corrosion. The upgraded tamper-resistant tubular key system enhances security, while the included O-rings minimize noise and vibration during transit.
Product Details
| Brand | JUSTTOP |
|---|---|
| Item Weight | 1.67 pounds |
| Item model number | JUSTTOP-DTPG-silver |
| Manufacturer | JUSTTOP |
| Part Number | JUSTTOP-DTPG-silver |
| Package Dimensions | 10.1 x 8.2 x 2.1 inches |
Pros
- Universal fit for Class III/IV receivers
- Includes 4 anti-rattle O-rings
- Durable, corrosion-resistant construction
- Tamper-resistant tubular key system
Cons
- Pin length may be too short for some applications
An excellent option for car, boat, RV, and truck owners with Class III/IV hitches needing a secure and quiet connection. Ensure the 3-1/2" pin length meets your specific receiver depth.
6. CZC AUTO Trailer Hitch Lock, 5/8″ Dia, 4 Inch Super Extra Long Receiver Pin
Best for: Super extra long, 4" pin.
The CZC AUTO trailer hitch lock offers a 5/8" diameter pin with a super extra long 4-inch effective length, specifically designed for large towing vehicles and 2-1/2" to 3-1/2" hitch receivers.
This 5/8" receiver pin provides a substantial 4-inch effective length, making it ideal for larger towing setups including 2-1/2", 3", and 3-1/2" hitch receivers. It features an easy-to-operate key lock system with two included keys for convenient operation and security.
Product Details
| Brand | CZC AUTO |
|---|---|
| Item Weight | 12 ounces |
| Item model number | 11212 |
| Manufacturer | CZC AUTO |
| Part Number | 11212 |
| Model | Hitch Lock |
| Dimensions | 6.6 x 0.94 x 1.26 inches |
Additional Product Information
| Voltage | 12 volts |
|---|
Pros
- Super extra long 4" effective pin length
- Suitable for large towing vehicles
- Fits 2-1/2" to 3-1/2" receivers
- Easy key lock operation
Cons
- Requires verification of dimensions before purchase
Recommended for owners of large trucks and RVs with bigger hitch receivers needing an extended pin. Always confirm your hitch receiver's exact dimensions for optimal fit.
7. CZC AUTO Trailer Hitch Pin Lock 5/8″ for Class III IV 2″ 2-1/2″ Receiver
Best for: Dogbone style, all-weather.
The CZC AUTO dogbone style trailer hitch receiver lock uses a 5/8" pin with a 3-1/2" effective length, perfectly suited for Class III/IV 2" and 2-1/2" hitch receivers. Its carbon steel construction ensures durability.
Featuring a 5/8" diameter pin and 3-1/2" effective length, this lock fits Class III/IV 2" and 2-1/2" receiver tubes securely. The black electrophoretic painted carbon steel body is robust, while the 360-degree rotating head allows for easy handling. An all-weather rubber cap protects the keyhole from moisture and dust.
Product Details
| Brand | CZC AUTO |
|---|---|
| Compatible with Vehicle Type | Car, RV, Trailer, Truck |
| Item Weight | 0.32 kg |
| Manufacturer | CZC AUTO |
| Part Number | 11208S |
| Material | Carbon Steel |
| Model Number | 13 |
Pros
- Fits 2" and 2-1/2" Class III/IV receivers
- Durable carbon steel construction
- All-weather rubber key slot cap
- 360-degree rotating head for ease of use
Cons
- Key must be pulled out after unlocking
A reliable choice for car, RV, and truck owners with standard Class III/IV hitches seeking a durable, weather-resistant locking pin. Ensure the pin pops up automatically after unlocking.
8. AUTOBOTS Keyless Trailer Hitch Lock Pin for 2″ and 2.5″ Receivers
Best for: Keyless combination lock.
The AUTOBOTS keyless trailer hitch lock offers a 4-digit combination password for keyless security, eliminating the hassle of lost keys. It's designed for 2" and 2.5" receivers, providing maximum security with solid steel construction.
This hitch lock replaces traditional keys with a 4-digit combination, defaulting to 0000 for easy setup and use on 2" and 2.5" receivers. Constructed from super solid steel with an electrophoretic paint finish to prevent corrosion, it offers robust protection against theft and the elements.
Product Details
| Brand | AUTOBOTS |
|---|---|
| Item Weight | 1.38 pounds |
| Manufacturer | AUTOBOTS |
| Part Number | 2 Keyless Lock |
| Package Dimensions | 8.31 x 2.48 x 2.48 inches |
Pros
- Keyless 4-digit combination lock
- Maximum security with solid steel
- Electrophoretic paint resists corrosion
- Universal fit for 2" and 2.5" receivers
Cons
- Combination cannot be changed from default (0000)
Ideal for users who prefer keyless convenience and enhanced security for their 2" or 2.5" receivers. Ensure the default 0000 combination meets your security needs.
9. TOPICK 5/8″ Trailer Hitch Lock, 4-1/2″ Stainless Steel Locking Hitch Pin
Best for: Stainless steel, high capacity.
The TOPICK 5/8" trailer hitch lock is crafted from stainless steel, offering universal fit for 2", 2.5", and 3" hitch receivers. It boasts a high capacity rating, up to 36,000 lb, ensuring ultimate security for your towing setup.
Made from durable stainless steel, this 5/8" locking hitch pin provides universal compatibility across 2", 2.5", and 3" hitch receivers, and can secure accessories in hitch channels. Rated for capacities up to 36,000 lb, its thick lockable barrel prevents theft and ensures a solid hold on your hitch.
Product Details
| Brand | TOPICK |
|---|---|
| Item Weight | 1.1 pounds |
| Manufacturer | TOPICK |
| Part Number | TPTL04SS |
| Model | Hitch Pin |
| Package Dimensions | 8.35 x 1.65 x 1.61 inches |
Pros
- Universal fit for 2", 2.5", 3" receivers
- High capacity rating (up to 36,000 lb)
- Durable stainless steel construction
- Prevents theft with thick lockable barrel
Cons
- Pin length not specified for precise fitment
A robust choice for heavy-duty towing applications across various hitch sizes, prioritizing security and durability. Verify the pin length suits your specific receiver depth.
10. Trailer Hitch Locks With Keys, 5/8″ Pin, Fits 2, 2-1/2 Receiver, 2 Pack
Best for: 2-pack, rustproof design.
This 2-pack of TOWSWELL trailer hitch locks features a 5/8" pin with a 4-inch span, designed for Class III/IV 2" and 2-1/2" receiver tubes. The rustproof design and all-weather key slot cap ensure longevity and protection.
Each lock in this 2-pack utilizes a 5/8" pin with a 4-inch span, fitting Class III/IV 2" and 2-1/2" hitch receivers. Constructed from high-quality steel, the pins are resistant to bending. A black coating prevents rust and corrosion, while the rubber key slot cap protects the mechanism from dust and moisture.
Product Details
| Brand | TOWSWELL |
|---|---|
| Item Weight | 1.5 pounds |
| Item model number | TW9029 |
| Manufacturer | towswell |
| Part Number | TW9029 |
| Package Dimensions | 6.77 x 2.87 x 1.34 inches |
Pros
- Includes two locks
- Rustproof design with black coating
- Fits Class III/IV 2" and 2-1/2" receivers
- Durable, high-quality steel construction
Cons
- Pin span may be too short for some 2.5" receivers
An economical option for owners of 2" or 2.5" Class III/IV hitches needing a reliable, rust-resistant locking pin set. Confirm the 4-inch span is adequate for your receiver.
What Buyers Often Overlook
Sizing and receiver compatibility
Receiver size and usable span should determine your first choice. The listed pins use a 5/8-inch diameter, but their intended fit varies substantially: Rhino USA specifies 2.5-inch Class V receivers; several CZC AUTO, JUSTTOP, AUTOBOTS, and TOWSWELL models target 2-inch and 2.5-inch Class III or IV receivers; and TowWorks 79830 and 79832 provide a 4-1/2-inch active length for many adjustable hitches, 3-inch receivers, and channel mounts. CZC AUTO also offers a 4-inch effective-length design for larger towing vehicles and 2.5-, 3-, or 3.5-inch receivers.
Effective length is more useful than total product length because it describes the working clearance through the receiver and hitch. Measure the receiver, hitch holes, and available clearance first.
TowWorks specifically excludes FASTWAY adjustable hitches, so apparent size compatibility is not enough.
The Key Product Trade-Off
Materials, weather protection, and everyday handling
Everyday convenience comes from details beyond the locking pin itself. The products include solid or hardened steel and carbon-steel constructions, with coatings such as black electrophoretic paint, black e-coating, zinc plating, or a stainless-steel design. These finishes are intended to resist corrosion, but the supplied data does not establish identical weather performance across models.
A rubber key-slot cap on the CZC AUTO and TOWSWELL designs helps keep moisture and dust away from the keyway. TowWorks adds rubber O-rings to reduce rattles and hold the pin still, while its spring clip can allow a quick hitch change without using the lock.
Keyed-alike sets simplify carrying one key for multiple locks, whereas AUTOBOTS uses a four-digit combination and removes key management. The trade-off is straightforward: choose keyed access for conventional operation, combination access for keyless convenience, or O-rings and protective caps when movement and exposure matter most.
Best 5 8 Locking Hitch Pin: Buyer's Guide
Fit, Dimensions, and Compatibility
Compare the listed dimensions with the intended counter, cabinet, appliance, storage, or installation space. Confirm model compatibility and connection requirements where they are supplied. A useful feature cannot compensate for a product that does not physically fit or work with the buyer’s existing setup.
Capacity, Output, and Operating Format
Match listed capacity, volume, output, and operating mode to the actual household or work routine. Larger figures can support heavier use, while a smaller format may be easier to place and maintain. Treat daily output, immediate storage, and container capacity as separate specifications when the listing distinguishes them.
Materials, Construction, and Care
Use the listed materials and care instructions to judge cleaning effort, storage conditions, and compatibility with the intended use. Dishwasher, freezer, food-contact, or weather-related claims are included only when supplied for that product. Check whether routine care fits the way the product will be used.
Included Components and Setup Needs
Review the included components before planning installation or first use. Hoses, adapters, lids, paddles, bowls, brushes, controls, and manuals vary by listing. Confirm power, water, assembly, or accessory requirements from the supplied product information rather than assuming that separately pictured parts are included.
Which Should You Choose?
Choose by receiver and routine first. Pick TowWorks 79830 when an extra-long 4-1/2-inch active span is needed for compatible adjustable hitches or 3-inch receivers; choose the TowWorks 79832 two-pack for two locks with keyed-alike operation. For a 2.5-inch Class V receiver, Rhino USA is the specifically identified fit.
For common 2-inch and 2.5-inch Class III or IV receivers, the JUSTTOP, CZC AUTO, Orion Motor Tech, and TOWSWELL options provide 5/8-inch pins with effective lengths around 3-1/2 to 4 inches. Select AUTOBOTS when avoiding keys matters most.
Favor CZC AUTO or TOWSWELL when a rubber key-slot cover is useful, and consider TowWorks or JUSTTOP when anti-rattle O-rings are a priority. Always verify dimensions and exclusions before ordering.
Quick Buying Checklist
- Confirm the complete dimensions against the available space.
- Verify model, accessory, connection, and appliance compatibility.
- Match capacity or output to the expected amount of use.
- Compare materials and care instructions with the maintenance routine.
- Check the included components before planning setup or first use.
- Confirm listed power, water, storage, or installation requirements where applicable.
Frequently Asked Questions
What is the primary function of a 5/8" locking hitch pin?
A 5/8 locking hitch pin secures your trailer to your vehicle’s receiver hitch. It prevents theft by locking the pin in place, ensuring the trailer remains attached during transit and deterring unauthorized removal.
How do I determine the correct hitch pin size for my vehicle?
Check your vehicle’s receiver hitch size, typically stamped on the hitch itself or in your owner’s manual. Common sizes are 2 and 2.5. The 5/8 diameter pin is generally for Class III, IV, and V hitches.
What does 'keyed alike' mean for hitch locks?
‘Keyed alike’ means multiple locks in a set can be opened with the same key. This is convenient if you have several locking pins or other keyed alike accessories, reducing the number of keys you need to carry.
Are there different types of locking mechanisms for hitch pins?
Yes, hitch pins use various locking mechanisms, including traditional key locks, keyless push-button designs, and combination locks. Keyed locks offer a familiar security method, while keyless options provide quick access.
What are the benefits of a longer hitch pin span?
A longer span, like 4-1/2 inches, is beneficial for thicker receiver hitches or when using accessories like hitch-mounted carriers or bike racks. It ensures the pin can pass through the entire hitch and accessory shank.
Final Words
Selecting the right 5/8 locking hitch pin depends on your specific receiver size and security needs. For broader compatibility and enhanced security, consider models offering longer spans or keyed alike options. Prioritize durable, weather-resistant materials for reliable performance in various conditions.