Allstar Performance Flush Head Self Ejecting Aluminum Quick Turn Fastener - 5/16 x 0.500 in Body - Black (Set of 10) H759C01S The exhaust port and bolt

The exhaust port and bolt pattern are raised

Fire Resistance

Aluminum Small Head S/E Fasteners 5/16" x

Recommended for high horsepower street or race use

Metering Block

Allstar Performance Flush Head Self Ejecting Aluminum Quick Turn Fastener - 5/16 x 0.500 in Body - Black (Set of 10) H759C01S The exhaust port and boltAluminum Small Head S E Fasteners 5 16" x . 500" Long Black Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance. Product Description: Quick Turn Fastener Self Ejecting Flush Head