4mm Jump Rings Gold Plate
4mm Gold Jump Rings are plated brass round open jump rings manufactured by TierraCast. These jump rings are made with 20 gauge (0.8mm) wire and have an inside diameter (ID) of approx 4mm and an outside diameter (OD) of approx 5.4mm. Use these jumprings for making chainmail jewelry or to attach charms to bracelets, clasps onto chain, etc. These jump rings have an aspect ratio of 4.7 (AR).
TierraCast is a USA based company that specializes in quality pewter cast components for the jewelry making industry. The TierraCast product line provides affordable, quality components that compliment a wide range of jewelry and beadwork.
- Jump Rings
- TierraCast Miscellaneous Components
- Round Open Jump Rings
- Plated Brass
- 20 Gauge (0.8mm)
- ID (mm) 3.78 - ID (in) .149
- OD (mm) 5.40 - OD (in) .213
- Aspect Ratio (AR) 4.7
Gauge - GA - AWG - this is the thickness of the wire. Most jump rings are manufactured using standard wire that is measured in gauges. We list our wire and jump rings using the AWG or american wire gauge system.
ID - inside diameter - measurement of the closed jump ring from inside edge to inside edge across the center.
OD - outside diameter - measurement of the closed jump ring from the outside edge to outside edge across the center.
AR - aspect ratio - specific to chainmail designs measures the inside diameter (ID) of the jump ring by the thickness (Gauge) of the wire or AR = ID / GA. This is a guideline measurement to determine whether a certain size jump ring will work with the weave you plan to use.
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