Sunset Porsche sells that part for $18.29. If you're going to go to the trouble of replacing the shift cable fastener I would also do the shift cable end (Part No. 996.424.145.01). That piece is $14.67. With shipping, both pieces were $39.16.
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1995 Porsche C4 Cab
2016 BMW M2, 6 Speed LBB - ED 7/2016
1997 993 Cab - Sold; 1997 993 Turbo - Sold
2001 Boxster S - Original Owner - 30K Miles -SOLD