18-8 Stainless Steel Female Hex Thread Adapter
1/4"-28 to M6 x 1 mm Thread Size







Material | 18-8 Stainless Steel |
Thread Size (A) | 1/4"-28 |
Thread Size (B) | M6 x 1 mm |
Thread Length | |
(A) | 1/4" |
(B) | 6 mm |
Thread Fit | |
(A) | Unified Standard Class 2B |
(B) | Metric Class 6H |
Hex | |
Size | 13 mm |
Length | 38 mm |
Specifications Met | ASTM A582 |
Tensile Strength | 85,000 psi |
Hardness | Rockwell B80 |
Drive Style | External Hex |
For Adapting | Thread Size |
Gender | |
(A) | Female |
(B) | Female |
Shape | Hex |
System of Measurement | Inch to Metric |
Country of Origin | United States |
DFARS Compliance | Specialty Metals Compliant (252.225-7009) |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (02/04/2026, 253 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench. Small adapters can also be used as standoffs, positioning and separating circuit boards and other components in assemblies.
18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
The information in this 3-D model is provided for reference only.

























