93 WARNING: Cancer and Reproductive Harm - www P65Warnings ca gov s l California Residents WARNING: Cancer www P65Warnings ca gov Header Collector Bolts Application Dia. UHL Total flange thickness 12-Point CHEVROLET All standard headers and collectors with 3 bolt flange (6 pcs ) 3/8-24 1 250 0 475- 600 400-1213 l All standard headers and collectors with 3 bolt flange (6 pcs ) 3/8-24 1 375 0 600- 725 400-1214 l All standard headers and collectors with 3 bolt flange (6 pcs ) 3/8-24 1 500 0 725- 850 400-1215 l Metric Stainless Accessory Studs ➊ Diameter & Thread Pitch ➋ OAL mm (in ) ➌ Thread Length mm (in ) ➍ Thread Length mm (in ) ➎ Nose Length mm (in ) ➏ Min. Grip mm (in ) ➐ Grip Dia. mm (in ) ➑ Broach mm ➒ Wrench Size mm ➓ Collar Dia. mm (in ) 4-Pack 8-Pack 10-Pack 16-Pack M8 x 1.25 x 1.25 32 (1 250) 12.7 (0 500) 12.7 (0 500) 5.1 (0 200) 1.3 (0 050) 8.0 (0 313) 3 10 13.6 (0 535) 400-8001 l 400-8011 l 400-8021 l 400-8031 l 38 (1 500) 14.0 (0 550) 14.0 (0 550) 5.1 (0 200) 5.1 (0 200) 400-8002 l 400-8012 l 400-8022 l 400-8032 l 45 (1 750) 15.2 (0 600) 20.7 (0 815) 5.1 (0 200) 3.5 (0 135) 400-8003 l 400-8013 l 400-8023 l 400-8033 l 51 (2 000) 15.2 (0 600) 21.3 (0 837) 5.1 (0 200) 9.2 (0 363) 400-8004 l 400-8014 l 400-8024 l 400-8034 l 57 (2 250) 15.2 (0 600) 21.3 (0 837) 5.1 (0 200) 15.8 (0 620) 400-8005 l 400-8015 l 400-8025 l 400-8035 l M10 x 1.25 x 1.25 48 (1 900) 17.8 (0 700) 19.1 (0 750) n/a 11.4 (0 450) 10.0 (0 392) 4 12 17.8 (0 700) 400-8006 l 400-8016 l 400-8026 l 400-8036 l 55 (2 150) 17.8 (0 700) 19.1 (0 750) 6.4 (0 250) 11.4 (0 450) 400-8007 l 400-8017 l 400-8027 l 400-8037 l M10 x 1.50 x 1.25 48 (1 900) 17.8 (0 700) 19.1 (0 750) n/a 11.4 (0 450) 10.0 (0 392) 4 12 17.8 (0 700) 400-8008 l 400-8018 l 400-8028 l 400-8038 l 55 (2 150) 17.8 (0 700) 19.1 (0 750) 6.4 (0 250) 11.4 (0 450) 400-8009 l 400-8019 l 400-8029 l 400-8039 l HEADER COLLECTOR
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