Shaft Nut located on the bottom of the shaft, this nut tightens the Non-drip Tip in place. 

Specifications:

• Stainless Steel
• Inside Diameter 4.25mm (0.16")
• Outside Diameter 7.85mm (0.30")

Compatible With:

• E-FP-50
• E-FP-100
• E-FP-250
• E-FP-500
• E-FP-1000
• E-FP-50-D
• E-FP-100-D
• E-FP-250-D
• E-FP-500-D
• E-FP-1000-D
• E-FP-1000-D2
• E-FP-100-DHH
• E-FP-500-DHH
• E-FP-1000-DHH

California Residents: read Proposition 65 warning.