Best Locking Trailer Hitch Pin for Common Receiver Sizes

#1 · Best Overall

1. Rhino USA 2in Pin

• Weight: 1.17 lb
• Material: Carbon Steel

Best for: 2-Inch Class III/IV Security.

Why it ranks #1: Made from solid carbon steel for standard 2-inch Class III and IV hitches, with a dust cover and two included keys.

A solid-steel locking pin sized for standard 2-by-2-inch receivers gives Class III and IV owners a straightforward way to secure a hitch connection. Rhino USA pairs its anti-theft, tamper-resistant construction with a dust cover, while the included two keys give owners a spare for access.

The 2-inch size targets Class III and IV receivers, so buyers with that standard opening can match the pin to their hitch class. Solid carbon steel and the stated tamper-resistant design address theft deterrence at the connection, while the dust cover helps shield the lock opening from debris. Two keys provide backup access if one is misplaced. Its stated fit is specific: this is not the 2.5-inch Class V version.

Skip it if you need a 2.5-inch Class V pin; Rhino USA’s 2.5-inch locking pin matches that receiver size.

Choose this Rhino USA pin if your Class III or IV receiver measures 2 inches and you want a steel locking connection with a dust cover. Its stated size does not cover 2.5-inch Class V receivers.

Listed on Amazon as: Rhino USA 2in Trailer Hitch Pin – Patented Locking Receiver Pin

#2 · Best for Class V

2. Rhino USA 2.5in Pin

• Weight: 15.8 oz
• Material: Carbon Steel

Best for: Class V 2.5-Inch Receivers.

Why it ranks #2: Specifically fits 2.5-inch Class V receivers and combines carbon steel, a dust cover, and an unlimited lifetime warranty.

A 2.5-inch fit for Class V receivers is the defining feature of this Rhino USA pin, giving owners of larger receiver openings a size-specific locking option. Its carbon-steel body is described as tamper-resistant, and a dust cover helps protect the lock opening from debris.

The stated 2.5-by-2.5-inch Class V compatibility helps buyers distinguish this pin from the brand’s 2-inch model and select the appropriate receiver size. Carbon steel and a tamper-resistant design provide the stated theft-deterrence function at the hitch connection. A dust cover shields the keyway from debris, while two included keys allow a spare to be kept separately. Confirm that your receiver is Class V and 2.5 inches before choosing this size.

Skip it if you have a standard 2-inch Class III or IV receiver; Rhino USA’s 2-inch pin suits that opening.

This is the size-specific pick for Class V owners whose receiver measures 2.5 inches and who want a locking steel pin with a dust cover. It is not the match for a standard 2-inch receiver.

Listed on Amazon as: 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

#3 · Best Extended Fit

3. CZC AUTO Hitch Lock

• Weight: 0.32 kg
• Material: Carbon Steel
• Material Type: Carbon Steel

Best for: Versatile 2-Inch and 2.5-Inch Fit.

Why it ranks #3: Its 5/8-inch pin has a 3.5-inch effective length for 2-inch and 2.5-inch receivers, plus a rubber key-slot cap.

A 3-1/2-inch effective pin length lets this CZC AUTO lock cover listed 2-inch and 2.5-inch Class III/IV receiver tubes, offering flexibility across those sizes. Its rotating head and rubber key-slot cap address handling and exposure, while the 5/8-inch pin is the specified diameter.

The 5/8-inch pin and 3-1/2-inch effective length are specified for Class III and IV 2-inch and 2.5-inch receiver tubes, helping owners compare dimensions across compatible setups. A 360-degree rotating head makes the lock easier to handle from different angles. The rubber cap keeps moisture, dust, and rust away from the keyhole, while the tubular keyhole and key operation support locking and removal. After hearing the click, pull the head to verify engagement.

Skip it if you need a stated 2.5-inch Class V fit; Rhino USA’s 2.5-inch pin is specified for Class V receivers.

This CZC AUTO lock suits buyers with a listed Class III or IV 2-inch or 2.5-inch receiver who value a rotating head and capped keyway. Check receiver class and dimensions before using its stated fit.

Listed on Amazon as: CZC AUTO Trailer Hitch Pin Lock 5/8" for Class III IV 2" 2-1/2" Receiver

#4 · Best Stainless Steel

4. Master Lock 1469DAT

• Weight: 14.4 oz
• Material: Stainless Steel
• Material Type: Stainless Steel

Best for: Corrosion-Resistant Stainless Steel.

Why it ranks #4: The 5/8-inch stainless steel pin has a 3.5-inch shaft and is listed for 2-inch and 2.5-inch hitches.

Stainless-steel construction is the defining choice on this Master Lock, providing corrosion resistance for a 5/8-inch receiver pin. Its 3-1/2-inch shaft is specified to fit 2-inch and 2.5-inch hitches, and a swivel head helps keep lock access manageable.

The 5/8-inch diameter and 3-1/2-inch shaft are intended for 2-inch and 2.5-inch hitches, allowing owners to compare this extended-length pin with their receiver. Stainless steel resists corrosion, a practical material choice where the lock encounters weather. The swivel head allows easier access to the lock, while the push-to-lock mechanism means the pin can be secured by pushing the lock into place. The listing also identifies late-model trucks with heavy-duty tow packages as a fit use case.

Skip it if you need both 1/2-inch and 5/8-inch pin options; Master Lock 2866DAT includes pins in both diameters.

This Master Lock fits buyers with a 5/8-inch receiver pin requirement who want stainless-steel construction and swivel-head access. Its shaft is listed for 2-inch and 2.5-inch hitches, not 1/2-inch pin needs.

Listed on Amazon as: Master Lock Silver and Red Receiver Lock, Stainless Steel BarbellTM Hitch Pin Lock, Fits 5/8 in. Receivers, Weather Resistant Automotive Receiver Lock, 1469DAT

#5

5. METOWARE Hitch Lock

• Weight: 10.5 oz

Best for: 2-Inch Receiver Pin Fit.

Why it ranks #5: A 5/8-inch pin with 2.75 inches of effective length fits most 2-inch receivers, but the listing excludes double-walled tubes.

A 5/8-inch pin with 2-3/4 inches of effective length targets 2-inch-square receivers, giving buyers clear dimensions for checking their hitch before purchase. METOWARE uses high-strength steel for theft deterrence, but its listing specifically excludes double-walled receiver tubes.

The 5/8-inch diameter and 2-3/4-inch effective pin length provide concrete measurements for buyers comparing the lock with a 2-by-2-inch receiver. High-strength steel is identified as the theft-deterrent construction, securing the trailer and hitch ball mount against theft. The stated double-wall exclusion matters during fit checks: owners need a compatible single-wall receiver tube, rather than relying only on the nominal 2-inch size. These dimensions make receiver measurement central to selection.

Skip it if you use a double-walled receiver tube; CZC AUTO’s listed fit covers 2-inch and 2.5-inch receivers without that stated exclusion.

Consider this METOWARE lock if your receiver is 2 inches, its pin dimensions suit the opening, and the tube is not double-walled. Its explicit receiver-wall restriction makes construction type an important fit check.

Listed on Amazon as: METOWARE Trailer Hitch Lock, 5/8" Dia Hitch Pin, Fit 2" Receiver, Black

#6

6. Orion Motor Tech Hitch Pin

• Weight: 14.9 oz

Best for: Two-Size Receiver Coverage.

Why it ranks #6: The 5/8-inch pin fits 2-inch and 2.5-inch receivers and provides 4.3 inches of effective length for a longer reach.

One 5/8-inch locking pin is listed for both 2-inch and 2.5-inch trailer receivers, giving owners of either size a single fit range to consider. Orion Motor Tech also specifies a 4.3-inch effective length and a hardened-steel core for a secure, close-fitting connection.

Compatibility with 2-inch and 2.5-inch receivers makes this pin relevant to buyers who need one listed size range across those openings. The 5/8-inch diameter and 4.3-inch effective length offer concrete dimensions for fit checking, while the description says that length minimizes movement. A hardened-steel core and drop-proof design are presented as resistance to prying and tampering. The total length is 7.7 inches, another measurement available when comparing the pin with a setup.

Skip it if you require a stated Class V receiver rating; Rhino USA’s 2.5-inch pin specifically lists Class V compatibility.

Orion Motor Tech’s pin fits buyers prioritizing a stated 2-inch or 2.5-inch range, hardened steel, and a long effective span. The listing does not name receiver classes, so class-specific fit needs another option.

Listed on Amazon as: OMT Locking Hitch Pin Set with 5/8" Pin for 2 & 2.5 Receiver

#7

7. JUSTTOP Hitch Lock

• Weight: 14.1 oz

Best for: Anti-Rattle Tow Setup.

Why it ranks #7: Its 5/8-inch pin has a 3.5-inch effective length for many 2-inch and 2.5-inch Class III and IV receivers, with four anti-rattle O-rings.

Four anti-rattle rubber O-rings set this JUSTTOP pin apart, giving owners a way to address hitch movement while securing a receiver. Its 5/8-inch diameter and 3-1/2-inch effective length are listed for most Class III and IV 2-inch and 2.5-inch receivers.

The specified 5/8-inch diameter and 3-1/2-inch effective length target most Class III and IV receivers measuring 2 or 2.5 inches, which helps buyers check fit against their setup. Four rubber O-rings are included to reduce rattling around the hitch connection. Black electrophoretic-painted carbon steel resists bending, while the upgraded tubular key system is described as tamper-resistant. The listed applications include trailers, boats, RVs, trucks, cars, and tractors.

Skip it if you need an extra-long 4-1/2-inch span for an adjustable channel mount; TowWorks 79831 lists that longer active length.

Choose JUSTTOP if you want a listed Class III/IV fit across common 2-inch and 2.5-inch receivers and value O-rings for rattle control. Its stated coverage is most receivers, so compare dimensions carefully.

Listed on Amazon as: 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

#8 · Best Dual-Pin Set

8. Master Lock 2866DAT

• Weight: 14.4 oz
• Material: metal, rubber
• Material Type: metal, rubber

Best for: Two Pin Sizes, Class I–IV.

Why it ranks #8: Includes both 1/2-inch and 5/8-inch locking pins for Class I through IV receivers, with a weather-resistant seal and two keys.

Two included pins, in 1/2-inch and 5/8-inch diameters, make this Master Lock useful across its listed Class I–IV receiver range. A rotating head turns the keyway forward for access, while push-to-lock operation simplifies securing the selected pin.

The 1/2-inch pin is rated up to 3,500 pounds for Class I and II, while the 5/8-inch pin is rated up to 10,000 pounds for Class III and IV. Having both pins in the set lets owners select the diameter associated with their listed class rating. The 360-degree rotating head helps position the keyway for access, and the push-to-lock mechanism secures the lock by pressing its head onto the pin. A weather-tight cap and seal add protection.

Skip it if you need a 2-inch or 2.5-inch extended 5/8-inch shaft; Master Lock 1469DAT lists a 3-1/2-inch shaft for those hitch sizes.

Choose this Master Lock if you need the listed 1/2-inch and 5/8-inch options across Class I–IV and want a rotating head. Match the pin diameter and its stated capacity to the receiver class.

Listed on Amazon as: Master Lock Receiver Lock, Weather Resistant Trailer Coupler, Keyed 2866DAT

#9

9. TowWorks 79831

• Weight: 0.58 kg
• Material: Steel & Zinc Alloy
• Material Type: Steel & Zinc Alloy

Best for: Extra-Long Adjustable Hitch Span.

Why it ranks #9: The extra-long 5/8-inch pin offers a 4.5-inch active span for many adjustable hitches, but does not fit FASTWAY adjustable hitches.

A 4-1/2-inch active length makes the TowWorks 5/8-inch pin suited to many adjustable hitches and channel mounts that need extra span. Its listing names compatible CURT channel-style models and adjustable pintle hooks, while expressly excluding FASTWAY adjustable hitches.

The 4-1/2-inch maximum active length and 5/8-inch diameter address adjustable setups whose channel or mount needs a longer pin span. TowWorks names CURT 45900, 45901, and 45902 channel-style hitches, plus adjustable pintle hooks 45907 and 45908, giving buyers concrete compatibility references. A spring clip provides a quick-change option without using the lock, while one-piece hardened steel and a zinc-plated, black e-coated finish are specified for the pin. FASTWAY adjustable hitches are excluded.

Skip it if you use a FASTWAY adjustable hitch; CZC AUTO’s listed receiver sizes serve conventional 2-inch and 2.5-inch setups.

TowWorks suits owners of compatible adjustable channel hitches or pintle hooks who need a 4-1/2-inch span and quick changes. It is explicitly unsuitable for FASTWAY adjustable hitches, so check the mount model.

Listed on Amazon as: TowWorks 79831 Keyed Unique 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

#10

10. BADAO Coupler Pins

• Material: Carbon Steel
• Material Type: Carbon Steel

Best for: Tethered Safety Pin Pair.

Why it ranks #10: These 1/4-inch carbon-steel safety pins use anti-lost ropes, but their small diameter and non-keyed design do not suit receiver-lock needs.

Two carbon-steel locking pins with anti-lost ropes and rings make this BADAO set a tethered option for trailer coupler and farm equipment connections. Each pin measures 1/4 inch by 3.1 inches, making its smaller dimensions a key fit consideration.

The set includes two arched-shaft pins and two anti-lost rope rings, allowing each pin to remain tethered rather than becoming separated during handling. Carbon steel with zinc plating is specified for rust and corrosion resistance. At 1/4 inch by 3.1 inches, these are much smaller than the 5/8-inch receiver pins commonly used for trailer hitches, so the dimensions should guide placement in compatible equipment. The listing identifies farm, lawn, garden, wagon, and towing uses.

Skip it if you need a 5/8-inch receiver lock; Master Lock 1469DAT lists a 5/8-inch pin for 2-inch and 2.5-inch hitches.

BADAO’s pair suits buyers seeking small tethered safety pins for compatible farm, lawn, garden, wagon, or coupler applications. Its 1/4-inch diameter is not a substitute for a standard 5/8-inch receiver lock.

Listed on Amazon as: 2Pack Locking Pins,Trailer Pin with Anti-Lost Rope Ring,Premium Trailer Hitch Pin,Hitch Locking Pin,Professional Trailer Coupler Pins for Farm Lawn Garden Wagons Towing,Size 1/4" x 3.1"(6.3mm x 80mm)