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20g 14K Gold Fill Jump Rings

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Price:
$116.00
Quantity:


Product Description

My jump rings are made completely by me - hand coiled wire on hardened steel mandrels, then precision cut for perfectly flush cut rings. Tumbled with stainless steel shot to clean, harden and bring them to a beautiful shine makes them perfect for making chainmaille or to use however you like in your own handmade jewelry.

20g wire diameter: 0.812mm

wire
gauge
approx.
inner diameter
(mandrel
size in mm)

approx.
outer
diameter

aspect
ratio
ring count per ounce troy
1
ozt
.75
ozt
.5
ozt
.25
ozt
.125
ozt
.0625
ozt
20g2 3.7 2.5 748 561 374 187 93 47
2.25 3.9 2.8 687 515 343 171 85 43
2.5 4.2 3.1 635 476 317 158 79 40
2.75 4.4 3.4 616 462 308 154 77 38
3 4.7 3.7 552 414 276 138 69 34
3.25 4.9 4.0 518 388 259 129 64 32
3.5 5.2 4.3 488 366 244 122 61 30
4 5.7 4.9 437 328 218 109 54 27
4.5 6.2 5.5 396 297 198 99 49 24
5.0 6.7 6.2 362 271 181 90 45 22
5.5 7.2 6.8 333 250 166 83 41 21
6.0 7.7 7.4 308 231 154 77 38 18
mandrel
diameter
actual
ID*
actual
OD*
actual
AR*
           
6.56.9 8.5 8.5 288 216 144 72 36 18
7.07.4 9.0 9.1 268 201 134 67 33 16
8.08.5 10.1 10.4 232 174 116 58 29 14
9.010.2 11.8 12.6 196 147 98 49 24 12
10.010.9 12.5 13.4 180 135 90 45 22 11
11.012.7 14.3 15.6 160 120 80 40 20 10
12.013.2 14.8 16.3 152 114 76 38 19 9

 

The "actual" measurements on the large diameter sizes above were made after closing the ring with my pliers, tight and flush without any gaps. The bigger the diameter of the ring, the more the coil of wire can "spring back" from the mandrel which it's coiled on, causing the ring, and thus the ID and OD to be larger than the mandrel size. Please note that I still label the rings by the size of the mandrel they were coiled on (or it would be too confusing!)

Inner diameter is the diameter of the mandrel, or steel rod that I coil the wire onto before cutting into rings. Some springback will occur, making the inner diameter of the ring slightly larger than the mandrel diameter. Inner and outer diameter may be +/- .2mm from these calculations.

For more jump ring information please see the Jump Ring Info page.


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Product Reviews

  1. Just what I needed! 5 Star Review

    Posted by on 20th Jul 2020

    Great quality


  2. gorgeous GF 5 Star Review

    Posted by on 18th Jul 2017

    great quality, shipped promptly