Click to expand Tap to zoom Straight Grease Nipple (All Sizes Available) by ISO Hydraulics Save $-2.00 $2.00 | / SKU 1/4" BSP Gas - Straight Grease Nipple - $2.00 1/8" BSP Gas - Straight Grease Nipple - $1.00 1/4" BSP Gas - Straight Grease Nipple 1/8" BSP Gas - Straight Grease Nipple Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Straight grease nipple with Metric thread.