A = 31 mm or 1 1/4″
B= 42mm 1 5/8″
C= 16 mm or .625″
Blackjack premium EPDM Snap-In valve stems are made with EPDM synthetic rubber, rather than natural rubber. EPDM rubber has a broader temperature range than natural rubber and will remain flexible in extremely cold weather. The valve stems are made of brass.
The VS-415 is for a larger rim hole and is not suitable for most passenger cars. These valves are rated up to 65 psi. For higher pressures consider a clamp in valve.