Add to Cart Quick view Hex Serrated Flange Nuts 5/16-24 (10) ARP MSRP: Now: $6.99 Was: Nut - Locking - 5/16-24 in Thread - 1/2 in Hex Head - Serrated Flange - Steel - Cadmium - Set of 10 ARP200-8665
Add to Cart Quick view 12pt Flange Nut 5/16-24 Upper Pulley JESEL MSRP: Now: $6.99 Was: Nut - 5/16-24 in Thread - 12 pt Head - Steel - Black Oxide - Each JESNUT-34765
Add to Cart Quick view Hex Nut Kit w/Flange 5/16-24 (10pk) ARP MSRP: Now: $16.99 Was: Nut - Locking - 5/16-24 in Thread - 3/8 in Hex Head - Serrated Flange - Chromoly - Black Oxide - Set of 10 ARP200-8674
Add to Cart Quick view Header Flange Kit - SBC 5/16 Thick PATRIOT EXHAUST MSRP: Now: $54.95 Was: Header Flange - 5/16 in Thick - 1-5/8 in Round Port - Steel - Small Block Chevy - Pair PEPH7864
Add to Cart Quick view Header Flange Kit - SBF 5/16 Thick PATRIOT EXHAUST MSRP: Now: $54.95 Was: Header Flange - 5/16 in Thick - 1.3 x 1.64 in Rectangle Port - Steel - Small Block Ford - Pair PEPH7842
Add to Cart Quick view Header Flange Kit - BBF 5/16 Thick PATRIOT EXHAUST MSRP: Now: $54.95 Was: Header Flange - 5/16 in Thick - 1.57 x 2.25 in Oval Port - Steel - Big Block Ford - Pair PEPH7871
Add to Cart Quick view 3/8-24 12pt Nut (1pk) ARP MSRP: Now: $1.99 Was: Nut - 3/8-24 in Thread - 1/2 in 12 Point Head - Chromoly - Black Oxide - Universal - Each ARP300-8371
Add to Cart Quick view Serrated Flange Nuts 5/16-18 10pk ALLSTAR PERFORMANCE MSRP: Now: $2.89 Was: Nut - Locking - 5/16-18 in Thread - Hex Head - Serrated Flange - Steel - Natural - Set of 10 ALL16041-10
Add to Cart Quick view Header Flange Nut Set 12pt Titanium 14pcs Ti22 PERFORMANCE MSRP: Now: $144.99 Was: Header Nut - 3/8-24 in Thread - 12 Point Head - Flanged - Titanium - Natural - Universal - Set of 14 TIP1124