Mil. Spec. 18-8 Stainless Steel Hex Head Screws

133 products

Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Mil. Spec. 18-8 Stainless Steel Hex Head Screws offer the perfect balance of strength and exceptional corrosion resistance. Whether utilizing 18-8 for general-purpose outdoor use or 316 for marine and chemical processing environments, these fasteners maintain their integrity against moisture, salt, and harsh chemicals. Their clean aesthetic and durable performance make them the preferred choice for food processing, medical equipment, and architectural applications.

Specifications Met
FF-S-85, MS35307-303 FF-S-85, MS35307-304 FF-S-85, MS35307-305 FF-S-85, MS35307-306 FF-S-85, MS35307-307 FF-S-85, MS35307-308 FF-S-85, MS35307-309 FF-S-85, MS35307-310 FF-S-85, MS35307-311 FF-S-85, MS35307-312 FF-S-85, MS35307-313 FF-S-85, MS35307-314 FF-S-85, MS35307-315 FF-S-85, MS35307-316 FF-S-85, MS35307-317 FF-S-85, MS35307-318 FF-S-85, MS35307-320 FF-S-85, MS35307-321 FF-S-85, MS35307-322 FF-S-85, MS35307-329 FF-S-85, MS35307-331 FF-S-85, MS35307-332 FF-S-85, MS35307-333 FF-S-85, MS35307-334 FF-S-85, MS35307-335 FF-S-85, MS35307-336 FF-S-85, MS35307-337 FF-S-85, MS35307-338 FF-S-85, MS35307-339 FF-S-85, MS35307-340 FF-S-85, MS35307-341 FF-S-85, MS35307-342 FF-S-85, MS35307-343 FF-S-85, MS35307-344 FF-S-85, MS35307-345 FF-S-85, MS35307-346 FF-S-85, MS35307-355 FF-S-85, MS35307-357 FF-S-85, MS35307-358 FF-S-85, MS35307-359 FF-S-85, MS35307-360 FF-S-85, MS35307-361 FF-S-85, MS35307-362 FF-S-85, MS35307-363 FF-S-85, MS35307-364 FF-S-85, MS35307-365 FF-S-85, MS35307-366 FF-S-85, MS35307-367 FF-S-85, MS35307-368 FF-S-85, MS35307-369 FF-S-85, MS35307-370 FF-S-85, MS35307-372 FF-S-85, MS35307-373 FF-S-85, MS35307-407 FF-S-85, MS35307-409 FF-S-85, MS35307-410 FF-S-85, MS35307-411 FF-S-85, MS35307-412 FF-S-85, MS35307-413 FF-S-85, MS35307-414 FF-S-85, MS35307-415 FF-S-85, MS35307-416 FF-S-85, MS35307-417 FF-S-85, MS35307-418 FF-S-85, MS35307-419 FF-S-85, MS35307-458 FF-S-85, MS35307-460 FF-S-85, MS35307-462 FF-S-85, MS35307-463 FF-S-85, MS35307-464 FF-S-85, MS35307-465 FF-S-85, MS35307-466 FF-S-85, MS35307-467 FF-S-85, MS35307-468 FF-S-85, MS35307-470 FF-S-85, MS35307-472 FF-S-85, MS35307-485 FF-S-85, MS35307-487 FF-S-85, MS35307-488 FF-S-85, MS35307-489 FF-S-85, MS35307-491 FF-S-85, MS35308-303 FF-S-85, MS35308-304 FF-S-85, MS35308-305 FF-S-85, MS35308-306 FF-S-85, MS35308-307 FF-S-85, MS35308-308 FF-S-85, MS35308-309 FF-S-85, MS35308-310 FF-S-85, MS35308-311 FF-S-85, MS35308-312 FF-S-85, MS35308-313 FF-S-85, MS35308-314 FF-S-85, MS35308-315 FF-S-85, MS35308-316 FF-S-85, MS35308-318 FF-S-85, MS35308-331 FF-S-85, MS35308-332 FF-S-85, MS35308-333 FF-S-85, MS35308-334 FF-S-85, MS35308-335 FF-S-85, MS35308-336 FF-S-85, MS35308-337 FF-S-85, MS35308-338 FF-S-85, MS35308-339 FF-S-85, MS35308-340 FF-S-85, MS35308-341 FF-S-85, MS35308-342 FF-S-85, MS35308-343 FF-S-85, MS35308-357 FF-S-85, MS35308-358 FF-S-85, MS35308-359 FF-S-85, MS35308-360 FF-S-85, MS35308-361 FF-S-85, MS35308-362 FF-S-85, MS35308-363 FF-S-85, MS35308-364 FF-S-85, MS35308-365 FF-S-85, MS35308-366 FF-S-85, MS35308-367 FF-S-85, MS35308-368 FF-S-85, MS35308-370 FF-S-85, MS35308-407 FF-S-85, MS35308-409 FF-S-85, MS35308-410 FF-S-85, MS35308-411 FF-S-85, MS35308-413 FF-S-85, MS35308-414 FF-S-85, MS35308-415 FF-S-85, MS35308-416 FF-S-85, MS35308-417 FF-S-85, MS35308-418 FF-S-85, MS35308-419
Head Height
Thread Diameter
Thread Type
Part Number Thread Size Length Threading Specifications Met Thread Type Head Diameter Head Height Material Tensile Strength Hardness
0245FA00001 1/4"-20 1/2" Fully Threaded FF-S-85, MS35307-303 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00002 1/4"-20 9/16" Fully Threaded FF-S-85, MS35307-304 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00003 1/4"-20 5/8" Fully Threaded FF-S-85, MS35307-305 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00004 1/4"-20 3/4" Fully Threaded FF-S-85, MS35307-306 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00005 1/4"-20 7/8" Partially Threaded FF-S-85, MS35307-307 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00006 1/4"-20 1" Partially Threaded FF-S-85, MS35307-308 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00007 1/4"-20 1 1/8" Partially Threaded FF-S-85, MS35307-309 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00008 1/4"-20 1 1/4" Partially Threaded FF-S-85, MS35307-310 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00009 1/4"-20 1 3/8" Partially Threaded FF-S-85, MS35307-311 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00010 1/4"-20 1 1/2" Partially Threaded FF-S-85, MS35307-312 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00011 1/4"-20 1 3/4" Partially Threaded FF-S-85, MS35307-313 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00012 1/4"-20 2" Partially Threaded FF-S-85, MS35307-314 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00013 1/4"-20 2 1/4" Partially Threaded FF-S-85, MS35307-315 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00014 1/4"-20 2 1/2" Partially Threaded FF-S-85, MS35307-316 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00015 1/4"-20 2 3/4" Partially Threaded FF-S-85, MS35307-317 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00016 1/4"-20 3" Partially Threaded FF-S-85, MS35307-318 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00090 1/4"-20 3 1/2" Partially Threaded FF-S-85, MS35307-320 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00091 1/4"-20 3 3/4" Partially Threaded FF-S-85, MS35307-321 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00092 1/4"-20 4" Partially Threaded FF-S-85, MS35307-322 UNC - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00017 1/4"-28 1/2" Fully Threaded FF-S-85, MS35308-303 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00106 1/4"-28 9/16" Fully Threaded FF-S-85, MS35308-304 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00018 1/4"-28 5/8" Fully Threaded FF-S-85, MS35308-305 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00020 1/4"-28 3/4" Fully Threaded FF-S-85, MS35308-306 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00019 1/4"-28 7/8" Fully Threaded FF-S-85, MS35308-307 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00021 1/4"-28 1" Partially Threaded FF-S-85, MS35308-308 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00022 1/4"-28 1 1/8" Partially Threaded FF-S-85, MS35308-309 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00023 1/4"-28 1 1/4" Partially Threaded FF-S-85, MS35308-310 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00107 1/4"-28 1 3/8" Partially Threaded FF-S-85, MS35308-311 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00024 1/4"-28 1 1/2" Partially Threaded FF-S-85, MS35308-312 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00025 1/4"-28 1 3/4" Partially Threaded FF-S-85, MS35308-313 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00026 1/4"-28 2" Partially Threaded FF-S-85, MS35308-314 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00108 1/4"-28 2 1/4" Partially Threaded FF-S-85, MS35308-315 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00109 1/4"-28 2 1/2" Partially Threaded FF-S-85, MS35308-316 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00110 1/4"-28 3" Partially Threaded FF-S-85, MS35308-318 UNF - 5/32" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00064 5/16"-18 1/2" Fully Threaded FF-S-85, MS35307-329 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00027 5/16"-18 5/8" Fully Threaded FF-S-85, MS35307-331 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00028 5/16"-18 3/4" Fully Threaded FF-S-85, MS35307-332 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00029 5/16"-18 7/8" Fully Threaded FF-S-85, MS35307-333 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00030 5/16"-18 1" Partially Threaded FF-S-85, MS35307-334 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00031 5/16"-18 1 1/8" Partially Threaded FF-S-85, MS35307-335 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00032 5/16"-18 1 1/4" Partially Threaded FF-S-85, MS35307-336 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00065 5/16"-18 1 3/8" Partially Threaded FF-S-85, MS35307-337 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00033 5/16"-18 1 1/2" Partially Threaded FF-S-85, MS35307-338 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00034 5/16"-18 1 3/4" Partially Threaded FF-S-85, MS35307-339 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00035 5/16"-18 2" Partially Threaded FF-S-85, MS35307-340 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00036 5/16"-18 2 1/4" Partially Threaded FF-S-85, MS35307-341 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00037 5/16"-18 2 1/2" Partially Threaded FF-S-85, MS35307-342 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00093 5/16"-18 2 3/4" Partially Threaded FF-S-85, MS35307-343 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00038 5/16"-18 3" Partially Threaded FF-S-85, MS35307-344 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00131 5/16"-18 3 1/4" Partially Threaded FF-S-85, MS35307-345 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B80
0245FA00094 5/16"-18 3 1/2" Partially Threaded FF-S-85, MS35307-346 UNC - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00111 5/16"-24 5/8" Fully Threaded FF-S-85, MS35308-331 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00039 5/16"-24 3/4" Fully Threaded FF-S-85, MS35308-332 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00112 5/16"-24 7/8" Fully Threaded FF-S-85, MS35308-333 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00040 5/16"-24 1" Partially Threaded FF-S-85, MS35308-334 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00113 5/16"-24 1 1/8" Partially Threaded FF-S-85, MS35308-335 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00041 5/16"-24 1 1/4" Partially Threaded FF-S-85, MS35308-336 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00114 5/16"-24 1 3/8" Partially Threaded FF-S-85, MS35308-337 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00042 5/16"-24 1 1/2" Partially Threaded FF-S-85, MS35308-338 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00115 5/16"-24 1 3/4" Partially Threaded FF-S-85, MS35308-339 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00043 5/16"-24 2" Partially Threaded FF-S-85, MS35308-340 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00116 5/16"-24 2 1/4" Partially Threaded FF-S-85, MS35308-341 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00117 5/16"-24 2 1/2" Partially Threaded FF-S-85, MS35308-342 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00118 5/16"-24 2 3/4" Partially Threaded FF-S-85, MS35308-343 UNF - 13/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00095 3/8"-16 1/2" Fully Threaded FF-S-85, MS35307-355 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00044 3/8"-16 5/8" Fully Threaded FF-S-85, MS35307-357 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00045 3/8"-16 3/4" Fully Threaded FF-S-85, MS35307-358 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00046 3/8"-16 7/8" Fully Threaded FF-S-85, MS35307-359 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00047 3/8"-16 1" Fully Threaded FF-S-85, MS35307-360 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00048 3/8"-16 1 1/8" Fully Threaded FF-S-85, MS35307-361 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00049 3/8"-16 1 1/4" Partially Threaded FF-S-85, MS35307-362 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00050 3/8"-16 1 3/8" Partially Threaded FF-S-85, MS35307-363 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00051 3/8"-16 1 1/2" Partially Threaded FF-S-85, MS35307-364 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00052 3/8"-16 1 3/4" Partially Threaded FF-S-85, MS35307-365 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00053 3/8"-16 2" Partially Threaded FF-S-85, MS35307-366 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00057 3/8"-16 2 1/4" Partially Threaded FF-S-85, MS35307-367 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00054 3/8"-16 2 1/2" Partially Threaded FF-S-85, MS35307-368 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00055 3/8"-16 2 3/4" Partially Threaded FF-S-85, MS35307-369 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00056 3/8"-16 3" Partially Threaded FF-S-85, MS35307-370 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00096 3/8"-16 3 1/2" Partially Threaded FF-S-85, MS35307-372 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00097 3/8"-16 3 3/4" Partially Threaded FF-S-85, MS35307-373 UNC - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00119 3/8"-24 5/8" Fully Threaded FF-S-85, MS35308-357 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00058 3/8"-24 3/4" Fully Threaded FF-S-85, MS35308-358 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00120 3/8"-24 7/8" Fully Threaded FF-S-85, MS35308-359 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00059 3/8"-24 1" Fully Threaded FF-S-85, MS35308-360 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00121 3/8"-24 1 1/8" Fully Threaded FF-S-85, MS35308-361 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00060 3/8"-24 1 1/4" Partially Threaded FF-S-85, MS35308-362 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00122 3/8"-24 1 3/8" Partially Threaded FF-S-85, MS35308-363 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00061 3/8"-24 1 1/2" Partially Threaded FF-S-85, MS35308-364 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00062 3/8"-24 1 3/4" Partially Threaded FF-S-85, MS35308-365 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00063 3/8"-24 2" Partially Threaded FF-S-85, MS35308-366 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00123 3/8"-24 2 1/4" Partially Threaded FF-S-85, MS35308-367 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00124 3/8"-24 2 1/2" Partially Threaded FF-S-85, MS35308-368 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00125 3/8"-24 3" Partially Threaded FF-S-85, MS35308-370 UNF - 15/64" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00066 1/2"-13 3/4" Fully Threaded FF-S-85, MS35307-407 UNC - 5/16" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00067 1/2"-13 1" Fully Threaded FF-S-85, MS35307-409 UNC - 5/16" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00098 1/2"-13 1 1/8" Fully Threaded FF-S-85, MS35307-410 UNC - 5/16" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00068 1/2"-13 1 1/4" Fully Threaded FF-S-85, MS35307-411 UNC - 5/16" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00099 1/2"-13 1 3/8" Fully Threaded FF-S-85, MS35307-412 UNC - 5/16" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
0245FA00069 1/2"-13 1 1/2" Partially Threaded FF-S-85, MS35307-413 UNC - 5/16" Passivated 18-8 Stainless Steel 70000 psi Rockwell B74
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