The TSK LOW DEAD SPACE needle hub is designed to reduce the effective space left behind in the needle hub as close to zero. This new patented LDS hub design results in savings of up to 0.08ml per hypodermic needle, which leads to significant cost savings when injecting high cost products. External hub threading. Reduced pop-off risk. Prevents leakages. The LOW DEAD SPACE needle allows for an even tighter luer lock connection because of the built-in exterior treading. Preventing “pop-off” of the hub when exposed to high pressures. Hard polymer hub. No flexing. Prevents leakage. LDS needle hubs are made using an extremely hard polymer preventing “flexing” of the hub when exposed to high pressures which ultimately prevents leakage and needle pop-off.