Allstar Performance Steel Flush Allen Head Fasteners - 7/16 " x .550" - (50 Pack) 114004 Exhaust ports and bolt pattern

Exhaust ports and bolt pattern are raised

Stilo has two separate shell sizes for this helmet

Helmet Blower Mount

2009-2011 GMC Canyon

Allstar Performance Steel Flush Allen Head Fasteners - 7/16 " x .550" - (50 Pack) 114004 Exhaust ports and bolt patternSteel Flush Allen Hd Fasteners 7 16" x . 550" Long Silver 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 Flush Head Hex Drive 7 16 x 0.