SKU: 20168313236

Allen A5166 STANDARD Height Mainsheet Jammer

Sale price$92.42 Regular price$102.69
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Allen A5166 STANDARD Height Mainsheet JammerStandard height mainsheet jammer. The Allen A5166 standard height mainsheet jammer with 3 options: 1. Mainsheet base only with NO mainsheet Ratchet Block 2. Mainsheet base WITH a 60mm Pro Ratchet Block. (As used on the RS500 as an example) 3. Mainsheet base With a Fiddle Pro Ratchet Block Designed for use on both dinghies and keelboats which require a central jammer. Featuring a cold forged bearing system which has a ball locating groove for smooth

Standard height mainsheet jammer.

The Allen A5166 standard height mainsheet jammer with 3 options:

1. Mainsheet base only with NO mainsheet Ratchet Block

2. Mainsheet base WITH a 60mm Pro-Ratchet Block. (As used on the RS500 as an example)

3. Mainsheet base With a Fiddle Pro-Ratchet Block

Designed for use on both dinghies and keelboats which require a central jammer. Featuring a cold forged bearing system which has a ball-locating groove for smooth rotation, whilst preventing the lateral movement of the arm. The arm can be set to rotate at 180, 220 or 360 degrees by adjusting the stopper pins on the underside of the arm.The jammer arm angle has been carefully optimised to ensure easy cleating and uncleating when required.

Includes an aluminium cam cleat with mega pro-lead.

The arm can be set to rotate in 180, 220 or 360 degrees by adjusting the stopper pins on the underside of the arm. The arm swivel features two rows of ball bearings to ensure a super smooth rotation of the jammer arm.

Includes A..76-496 aluminium cam cleat with mega pro-lead.

Allen A.5166 Properties

Number of Base Fixing Holes 4 no.
Fixing Hole Size M5
Base Fixing Hole Spacing 19.5 mm
Overall Height 145 mm
Maximum Working Load Mm 600 kg
Weight 368 grams

 

For more dimensions, please see the Engineering drawing HERE

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20168313236

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4.5 ★★★★★
Based on 29 reviews
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Product Reviews
M
Verified Purchase
Mars
Carnegie, US
★★★★★ 5
Good basic decoration self.
Color: Black, Number Of Shelves: 1, Size: 47.2 inches
Easy to install. Looks good, good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
C
Verified Purchase
Cody
West Palm Beach, US
★★★★★ 4
Nice shelves. Minor defect in one of mine.
Color: Black, Number Of Shelves: 2, Size: 47.2 inches, Color: Black, Number Of Shelves: 2, Size: 47.2 inches
Sturdy and easy to hang. Look nice. One of the set screw holes was off by 1-1/2” so I had to drill a new one, that wasn’t ideal.
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Reviewed in the United States on February 24, 2026
M
Verified Purchase
Michael
Charlottesville, US
★★★★★ 1
Nice looking but bad quality and defects
Color: White, Number Of Shelves: 2, Size: 60 inches, Color: White, Number Of Shelves: 2, Size: 60 inches
Shelves look nice, but not great quality and one of my shelves came crooked (installed it perfectly level). Also has defects around the edges. Already installed so don’t want to rip off wall and return, but would like if they sent a couple new replacements at no charge. Keep you posted if that happens.
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Reviewed in the United States on April 14, 2026
C
Verified Purchase
Cori
Lexington, US
★★★★★ 5
Sturdy, Stylish, and Easy to Install Floating Shelf
Color: White, Number Of Shelves: 1, Size: 35.4 inches, Color: White, Number Of Shelves: 1, Size: 35.4 inches
This floating shelf looks great and feels very sturdy once installed. It’s stable, fits securely on the wall, and holds plenty of items without issue. I measured beforehand, and it fits perfectly in the space I needed. The hardware was included, and assembly was quick and easy—I had it up in just a couple of minutes. The quality is excellent, and the clean design adds a nice touch to the room. Highly recommend!
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Reviewed in the United States on September 3, 2025
C
Verified Purchase
Caiden Benson
Birmingham, US
★★★★★ 3
It’s meh
Color: Natural Oak, Number Of Shelves: 1, Size: 35.4 inches
Instructions are different than what comes. It’s hard to level and because there isn’t as many mounting points as the instructions it’s more flimsy than you’d think. Still works but can take some finessing to get it to be sturdy enough depending on what you’re planning on putting on it. Looks good and like the pictures though.
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Reviewed in the United States on April 9, 2026

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