Top quality, precision machined 90 degree elbow fitting. Steel construction, plated for corrosion protection. Female to Female Thread. Perfect for setting pressure gauges or fittings at an angle. 1/4" BSP Thread sizes. BSP thread sizes do not refer to the overall diameter of the thread. 1/4" BSP is approx. 13mm overall diameter. Ideal for airlines, compressors, hydraulics, etc. Weight: 0.07936641432 pounds.