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When a roller chain snaps mid-run or needs a quick field repair, hunting for the right connecting link wastes time and risks extended downtime. Whether you are a maintenance technician keeping conveyor lines moving, a DIY builder assembling a go-kart drivetrain, or a farmer repairing agricultural equipment, having the correct roller chain connecting link on hand is the difference between a 10-minute fix and a full production halt.
These roller chain connecting links are manufactured from carbon steel with a zinc-plated finish for corrosion resistance. They are available in simplex (single-strand) and duplex (double-strand) configurations, covering ANSI chain sizes #25 through #160. Pitches range from 6.35 mm (1/4 in) for the smallest #25 links up to 50.8 mm (2 in) for the heavy-duty #160 links. Each variant is offered as a Full Link Buckle (spring clip style) or Half Link Buckle (offset link style), sold in packs of 1, 2, or 5 pieces.
Typical use cases include repairing or extending ANSI standard roller chains on conveyor systems, bicycle and go-kart drivetrains, agricultural machinery such as combine harvesters and seeders, and industrial power transmission setups where a quick-release connecting link is required for routine maintenance. The wide size range makes this listing a practical single-source solution for workshops stocking multiple chain sizes.
Spans ANSI #25 through #160, covering pitches from 6.35 mm (1/4 in) to 50.8 mm (2 in) — one listing for the most common roller chain sizes in industrial and DIY applications.
Choose a Full Link Buckle (spring clip) for standard chain joining or a Half Link Buckle (offset link) when you need to fine-tune chain length by half a pitch without removing a full link.
Carbon steel construction with zinc plating provides resistance to surface oxidation, extending service life in moderately humid or outdoor environments compared to bare steel links.
Each link is dimensioned to ANSI/ISO roller chain standards, ensuring drop-in compatibility with chains from major manufacturers without modification or shimming.
Available in packs of 1, 2, or 5 pieces — order a single link for an emergency repair or stock up in fives for maintenance kits and workshop inventory.
Covers both single-strand (simplex) and double-strand (duplex) roller chain configurations, making these links suitable for higher-load parallel-strand drive systems as well as standard single-strand setups.
| Chain Standard | ANSI / ISO |
|---|---|
| Size Range | #25 (04C) to #160 (32A) |
| Pitch Range | 6.35 mm – 50.8 mm (1/4 in – 2 in) |
| Chain Configuration | Simplex (single-strand) & Duplex (double-strand) |
| Link Type | Full Link Buckle (spring clip) / Half Link Buckle (offset) |
| Material | Carbon steel |
| Surface Finish | Zinc-plated |
| Pack Options | 1 pc / 2 pcs / 5 pcs |
| Tensile Strength | See variant options |
| Inner Plate Thickness | See variant options |
| Pin Diameter | See variant options |
| Roller Diameter | See variant options |
Match the chain number to your existing chain. The ANSI number corresponds directly to the pitch: #25 = 6.35 mm pitch, #35 = 9.525 mm, #40 = 12.7 mm, #50 = 15.875 mm, #60 = 19.05 mm, #80 = 25.4 mm, #100 = 31.75 mm, #120 = 38.1 mm, #140 = 44.45 mm, #160 = 50.8 mm. Measure the distance between the centers of two adjacent pins on your chain to confirm the pitch, then select the matching size.
A Full Link Buckle (spring clip connecting link) joins two chain ends at a standard full-pitch interval and is the most common type used for chain repair and assembly. A Half Link Buckle (offset link) adds half a pitch to the chain length, which is useful when you need to shorten or lengthen a chain by one link but the total count would otherwise be odd. Use a half link when your chain length calculation requires it; otherwise, a full link is the standard choice.
Yes. This listing covers both simplex (single-strand) and duplex (double-strand) configurations. When selecting your variant, confirm whether your chain is simplex or duplex and choose accordingly. Duplex links have wider inner plates to span both strands. If you are unsure, check your chain's part number or measure the overall width across both strands.
These links are manufactured from carbon steel to ANSI/ISO dimensional standards, which means their tensile strength ratings align with the corresponding chain grade. Larger sizes such as #80, #100, #120, #140, and #160 are rated for substantial industrial loads. For exact tensile strength values by size, please contact us to confirm, as ratings vary by strand count and specific sub-series (A vs. B designation).
Zinc plating provides a meaningful improvement in corrosion resistance compared to bare carbon steel, making these links suitable for moderately humid or occasionally wet environments such as outdoor agricultural equipment or light-duty conveyor systems. For continuously submerged or highly corrosive environments, stainless steel chain links would be a more appropriate choice. Regular lubrication will further extend service life in outdoor applications.
Full Link Buckles (spring clip style) can typically be installed and removed with basic hand tools — a pair of pliers is usually sufficient to seat or remove the spring clip. Half Link Buckles may require a chain breaker tool for proper installation depending on the chain size. For larger sizes (#80 and above), using a chain assembly tool is recommended to ensure the clip is fully seated and the link is secure before returning the chain to service.
Connecting links can be used both to repair a broken chain and to join two chain sections when extending overall chain length. If you need to add an odd number of pitches, a Half Link Buckle allows you to add half a pitch, giving you more flexibility in achieving the exact chain length required for your application.
