Armstrong / Alar Chain Products

What Are Weldless Chains?

Weldless chains are chains with links that are secured together by machine twisting or bending rather than by welding. While they are somewhat less secure than welded chains, they still find employment in many load-bearing applications, such as animal, boat, and vehicle tethering, structure and equipment builds, and barrier construction.

Types of Weldless Chain

Weldless are available in a wide range of sizes and materials to suit different chain needs. They also vary in regard to design and performance characteristics depending on the requirements and restrictions of the load-bearing application. Some of the types available include:

Single Jack Weldless Chain

Single jack weldless chains are weldless chains with links twisted approximately 90 degrees to each other, forming a figure-eight pattern. They are often used for the suspension of light fixtures, such as fluorescent lighting elements or flowerpots.

Double Jack Weldless Chain

Double jack weldless chains are general utility chains that feature a similar design to that of single jack weldless chains. However, their lower loops consist of two strands of wire instead of one. They are commonly employed in applications where high load-bearing strength is not critical, such as for hanging lighting fixtures or constructing children’s toys.

Single Loop Weldless Chain

Single loop weldless chains are made in a single loop pattern with interlocking eyes. The link ends are locked down after forming the eye to make exceptionally flat weldless chains. They are suitable for use with operating valve wheels, overheard doors, sprocket wheels, and ventilators.

Double Loop Weldless Chain

Double loop weldless chains have both loops of the links identical in shape and size, wrapped in the middle with a center tie. They are the most commonly used type of weldless chain, due to their lighter material weight, flexibility, and strength. They are often used alongside recreational equipment, padlocks, boats, and gates.

Sash Weldless Chain

Sash weldless chains are made from flat wire and can be used alongside fixtures specially designed for sash weldless chains or S-hook rings and other attachments. They are commonly employed for suspension operations involving double-hung sashes and pulley assemblies.

Safety Weldless Chain

Safety weldless chains—also referred to as plumber’s weldless chains—are stamped from flat brass wire. They are generally utilized in applications that require lighter chains, such as in plumbing fixtures or as keeper chains.

Register Chain

Register chains are used in applications involving opening/closing mechanisms, such as for furnace dampers, doors, and ducts or skylights.

Weldless Chains From Armstrong Alar

At Armstrong Alar, we offer a broad selection of weldless chains, in varying designs, materials, finishes, trade sizes, load-bearing capacities, and lengths. The types we have available include:

Single Jack Weldless Chain

Our single jack weldless chains are available with bright or zinc plated finishes in the following trade sizes: 18, 16, 14, 12, 10, 8, and 6. They come in cartons with 100-foot lengths or reels of 500 or 1000 feet. See the chart below for additional information.

SINGLE JACK WELDLESS CHAINS
Trade Size No.	Wire Gauge	Material Diam. (Inches)	Length Per 100 Links (Inches)	Weight Per 100 Ft., (Lbs.)		Working Load Limit In Lbs.
				Steel	Brass	Steel	Brass
18	18	.047	39	1.75	2	5	4
16	16	.062	50	3	3.25	10	8
14	14	.080	63	4.75	5.25	16	11
12	12	.105	75	8.5	9.25	29	20
10	10	.135	93	14	15	43
8	8	.162	109	20	22	60
6	6	.192	124	27	30	88

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Double Loop Weldless Chain

Our double loop weldless chains are available with bright or zinc plated finishes in the following trade sizes: 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, and 4/0. They come in cartons with 100-foot lengths. See the chart below for additional information.

DOUBLE LOOP WELDLESS CHAINS
Trade Size No.	Wire Gauge	Material Diam. (Inches)	Length Per 100 Links (Inches)	Weight Per 100 Ft. (Lbs.)	Working Load Limit (Lbs.)
5	16	.062	92	3.5	55
4	15	.072	100	4.75	70
3	14	.080	110	6	90
2	13	.091	133	7.75	115
1	12	.105	154	10	155
1/0	11	.120	178	13	200
2/0	10	.135	182	16	255
3/0	9	.148	217	20	305
4/0	8	.162	219	25	365

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Single Loop Weldless Chain

Our single loop weldless chains are available in 2, 1/0, 2/0, 3/0, and 4/0 trade sizes with bright or zinc plated finishes. They come in cartons with 100-foot lengths. See the chart below for additional information.

SINGLE LOOP WELDLESS CHAINS
Trade Size No.	Wire Gauge	Material Diam. (Inches)	Length Per 100 Links (Inches)	Weight Per 100 Ft. (Lbs.)	Working Load Limit (Lbs.)
2	13	.091	108	9	155
1/0	11	.120	129	16	235
2/0	10	.135	148	23	340
3/0	9	.148	163	26	405
4/0	8	.162	180	29	485

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Sash Weldless Chain

Our zinc-finished sash weldless chains are available in the following trade sizes: 8, 25, 30, 35, 40, 45, and 50. They come in cartons with 100-foot lengths or 500-foot reels. See the chart below for additional information.

SASH WELDLESS CHAINS
Trade Size No.	Material Diam. (Inches)	Length Per 100 Links (Inches)	Weight Per 100 Ft. (Lbs.) Steel	Working Load Limit (Lbs.) STEEL
8	.035	55.5	4.25	75
25	.042	55.5	5.0	94
30	.028	55.5	5.0	81
35	.035	56.0	6.25	106
40	.042	56.5	7.25	131
45	.050	56.5	9.0	175
50	.060	62.5	11.0	225

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Safety Weldless Chain

Our safety weldless chains are available in the following trade sizes: 2/0, 1/0, and 1. They come in cartons with 100-foot lengths or 500-foot reels. See the chart below for additional information.

SAFETY WELDLESS CHAINS
Trade Size No.	Material Size (Inches)	Length Per 100 Links (Inches)	Weight Per 100 Ft. (Lbs.)	Working Load Limit (Lbs.)
			Steel/Brass	Steel	Brass
2/0	.018	44	2	31	23
1/0	.023	50	2.25	40	35
1	.028	59	4	58	45