ARP 2017 Catalog r3

114 800-826-3045 Red part numbers indicate new items BULK FASTENERS ➊ ➋ Head Height ➌ Collar Diameter ➍ Socket Size 12-Point 8740 Black Oxide Finish 12-Point ARP Polished Stainless Steel Diameter Thread Size 1 PC Bulk 2 PC-Pack 10 PC-Pack 1 PC Bulk 2 PC-Pack 10 PC-Pack STANDARD threads / inch inch inch inch 1/4 20 0.300 0.433 5/16 301-8300 301-8320 301-8340 401-8300 401-8320 401-8340 28 0.300 0.433 5/16 300-8300 300-8320 300-8330 400-8300 400-8320 400-8330 5/16 18 0.348 0.526 3/8 301-8303 301-8323 301-8343 401-8303 401-8323 401-8343 24 0.348 0.526 3/8 300-8301 300-8321 300-8331 400-8301 400-8321 400-8331 11/32 24 0.388 0.644 7/16 300-8373 300-8383 300-8393 3/8 16 0.390 0.625 7/16 301-8301 301-8321 301-8341 401-8301 401-8321 401-8341 24 0.390 0.625 7/16 300-8302 300-8322 300-8332 400-8302 400-8322 400-8332 24 0.420 0.700 1/2 300-8371 300-8381 300-8391 24 0.390 0.645 1/2 300-8372 300-8382 300-8392 7/16 14 0.433 0.700 1/2 301-8306 301-8326 301-8346 401-8306 401-8326 401-8346 20 0.432 0.700 1/2 300-8303 300-8323 300-8333 400-8303 400-8323 400-8333 20 0.362 0.600 1/2 300-8375 300-8385 300-8395 20 0.475 0.800 1/2 301-8316 301-8336 301-8356 20 0.504 0.823 9/16 300-8374 300-8384 300-8394 20 0.504 0.823 5/8 301-8314 301-8334 301-8354 1/2 13 0.510 0.823 9/16 301-8302 301-8322 301-8342 401-8302 401-8322 401-8342 20 0.510 0.823 9/16 300-8304 300-8324 300-8334 400-8304 400-8324 400-8334 20 0.530 0.873 5/8 300-8306 300-8326 300-8336 20 0.640 0.875 11/16 301-8313 301-8333 301-8353 9/16 12 0.620 0.965 11/16 301-8307 301-8327 301-8347 18 0.620 0.965 11/16 300-8305 300-8325 300-8335 400-8305 400-8325 400-8335 5/8 18 0.700 1.225 13/16 300-8309 300-8329 300-8339 ➊ ➋ Head Height ➌ Collar Diameter ➍ Socket Size 12-Point 8740 Black Oxide Finish 12-Point ARP Polished Stainless Steel Diameter Thread Size 1 PC Bulk 2 PC-Pack 10 PC-Pack 1 PC Bulk 2 PC-Pack 10 PC-Pack METRIC thread pitch mm (in.) mm (in.) mm M6 1.00 6.1 (0.241) 10.5 (0.413) 8 300-8370 300-8380 300-8390 400-8370 400-8380 400-8390 M7 1.00 7.0 (0.275) 12.0 (0.472) 9 300-8346 300-8356 300-8366 400-8346 400-8356 400-8366 M8 1.00 8.1 (0.320) 15.9 (0.625) 10 300-8340 300-8350 300-8360 400-8340 400-8350 400-8360 1.25 8.1 (0.320) 13.6 (0.535) 10 300-8310 300-8311 300-8312 400-8310 400-8311 400-8312 ➊ ➌ ➍ ➋ Available in a variety of sizes to suit your needs, all ARP 12-point nuts are constructed from 8740 chrome moly steel or ARP Stainless, and meet ARP’s highest standards of quality. Rated at 180,000 psi tensile strength, ARP 12-point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with limited space requirements. All 8740 chrome moly steel nuts are black oxide finished and all ARP Stainless nuts are polished to a briliant luster. 12-POINT NUTS

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