Collection: Threaded Fasteners

Check-All® F1 Style Flange Insert Check Valve - 1/2" NPS, 0.125 psi Cracking Pressure

12" Flange Insert Check Valve - F1 Style, 0.500 psi Cracking Pressure

Check-All® F1 Flange Insert Check Valve - 2in, 1.50psi Cracking Pressure

18" F1 Style Flange Insert Check Valve, Stainless Steel Body

Check-All® 3/4" F1 Style Flange Insert Check Valve

F6 Style Flange Insert Check Valve - 1" Nominal Pipe Size, 3.50 psi Standard Cracking Pressure

1/2 Inch FP Style Flange Insert Check Valve - 0.500 psi Cracking Pressure

Stainless Steel Flange Insert Check Valve - F1 Style, 3" Nominal Pipe Size, 0.500 psi Cracking Pressure

Check-All® F6 Flange Insert Check Valve - 3/4" Nominal Pipe Size, 0.500 psi Cracking Pressure

Check-All® 1/2" F6 Flange Insert Check Valve - 0.125 psi Cracking Pressure

Check-All F1 Style 4 Inch Flange Insert Check Valve

Check-All® 1/2 inch FP Style Flange Insert Check Valve

1.5" F6 Style Flange Insert Check Valve with 0.500 psi Standard Cracking Pressure

1" Flange Insert Check Valve, F1 Style, 0.500 psi Cracking Pressure

Check-All® F1 Style Flange Insert Check Valve - 1-1/2 in NPS, 3.50 psi Cracking Pressure

F1 Style 10 Inch Flange Insert Check Valve with 0.500 psi Standard Cracking Pressure