Why won't this 3/8 male connector for a natural gas dryer fit a 3/8 female connector? - Home Improvement Stack Exchange

Eastman 1/2 Inch FIP x 3/8 Inch Compression Flexible Faucet

3/8 Inch Natural Gas Quick Connect Fittings, LP Gas

MENSI 3/4 Female and Male Solid Brass Dual Fuel Generator Natural Pro

Supply Lines at

Appliance Pros Flexible Stainless Steel Gas Line for

Tsinghwang 3-way 3/8 x 1/2 Tee Adapter Brass 3/8 Water Line T

Supply Lines at

3/8 Inch Natural Gas Quick Connect Fittings, LP Gas

dryer - How to connect 14 thread pipe to 18 thread pipe - Home

Tsinghwang 3-way 3/8 x 1/2 Tee Adapter Brass 3/8 Water Line T

Eastman 1/2 Inch FIP x 3/8 Inch Compression Flexible Faucet

natural gas - Dryer Fittings, Was NG, now LP, but Fitting on Back

Gas pipe to dryer has wrong adapter - Home Improvement Stack Exchange