18-8 Stainless Steel Hex Head Screws

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18-8 Stainless Steel Hex Head Screws

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.

System of Measurement
Inch Metric
Specifications Met
ASME B18.2.1 ASME B18.6.3 DIN 931 DIN 933 ISO 4014, DIN 931 ISO 4017, DIN 933
Thread Size
2-56 4-40 6-32 8-32 10-24 10-32 12-24 1/4"-20 1/4"-28 5/16"-18 5/16"-24 3/8"-16 3/8"-24 7/16"-14 7/16"-20 1/2"-13 1/2"-20 9/16"-12 9/16"-18 5/8"-11 5/8"-18 3/4"-10 3/4"-16 7/8"-14 7/8"-9 1"-14 1"-8 1 1/8"-7 1 1/4"-7 1 3/8"-6 1 1/2"-6 M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24
Length
3/16" 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 7/8" 1" 1 1/8" 1 1/4" 1 3/8" 1 1/2" 1 5/8" 1 3/4" 1 7/8" 2" 2 1/4" 2 3/8" 2 1/2" 2 3/4" 3" 3 1/4" 3 1/2" 3 3/4" 4" 4 1/4" 4 3/8" 4 1/2" 4 3/4" 4 7/8" 5" 5 1/4" 5 1/2" 5 3/4" 6" 6 1/4" 6 1/2" 7" 7 1/2" 8" 8 1/2" 9" 9 1/2" 10" 10 1/2" 11" 11 1/2" 12" 12 1/2" 13" 13 1/2" 14" 14 1/2" 15" 16" 18" 20" 6 mm 8 mm 10 mm 12 mm 14 mm 15 mm 16 mm 18 mm 20 mm 22 mm 25 mm 30 mm 35 mm 40 mm 45 mm 50 mm 55 mm 60 mm 65 mm 70 mm 75 mm 80 mm 85 mm 90 mm 100 mm 110 mm 120 mm 130 mm 140 mm 150 mm 160 mm 170 mm 180 mm 190 mm 200 mm
Material
18-8 Stainless Steel Black-Oxide 18-8 Stainless Steel
Threading
Fully Threaded Partially Threaded
Head Height
1/16" 3/32" 7/64" 1/8" 5/32" 13/64" 15/64" 9/32" 5/16" 23/64" 25/64" 15/32" 35/64" 39/64" 11/16" 25/32" 27/32" 15/16" 2 mm 2.8 mm 3.5 mm 4 mm 5.3 mm 6.4 mm 7.5 mm 8.8 mm 10 mm 11.5 mm 12.5 mm 14 mm 15 mm
Thread Pitch
0.5 mm 0.7 mm 0.75 mm 0.8 mm 1 mm 1.25 mm 1.5 mm 1.75 mm 2 mm 2.5 mm 3 mm
Thread Diameter
0.086" 0.112" 0.138" 0.164" 0.19" 0.216" 0.25" 0.3125" 0.375" 0.4375" 0.5" 0.5625" 0.625" 0.75" 0.875" 1" 1.125" 1.25" 1.375" 1.5"
Thread Type
Metric UNC UNF UNS
Tensile Strength
70000 psi 80000 psi 100000 psi
Part Number Thread Size Length Threading Specifications Met Thread Type Head Diameter Head Height Material Tensile Strength Hardness
0244FA00988 1/4"-20 2 3/8" Partially Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00755 1/4"-20 2 1/2" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00434 1/4"-20 2 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01324 1/4"-20 2 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00756 1/4"-20 2 3/4" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00435 1/4"-20 2 3/4" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00757 1/4"-20 3" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00436 1/4"-20 3" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01126 1/4"-20 3 1/4" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00437 1/4"-20 3 1/4" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00758 1/4"-20 3 1/2" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00438 1/4"-20 3 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01127 1/4"-20 3 3/4" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00439 1/4"-20 3 3/4" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00759 1/4"-20 4" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00440 1/4"-20 4" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00760 1/4"-20 4 1/4" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00441 1/4"-20 4 1/4" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00989 1/4"-20 4 3/8" Partially Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00761 1/4"-20 4 1/2" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00442 1/4"-20 4 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01128 1/4"-20 4 3/4" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00947 1/4"-20 4 3/4" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 70000 psi Rockwell B70
0244FA00990 1/4"-20 4 7/8" Partially Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00762 1/4"-20 5" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00443 1/4"-20 5" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00659 1/4"-20 5 1/2" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00444 1/4"-20 5 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00763 1/4"-20 6" Fully Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00445 1/4"-20 6" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01129 1/4"-20 6 1/2" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00446 1/4"-20 6 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01130 1/4"-20 7" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00447 1/4"-20 7" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00991 1/4"-20 7 1/2" Partially Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01131 1/4"-20 8" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00449 1/4"-20 8" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00448 1/4"-20 8 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01132 1/4"-20 9" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00450 1/4"-20 9" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00451 1/4"-20 9 1/2" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01133 1/4"-20 10" Fully Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00452 1/4"-20 10" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00992 1/4"-20 10 1/2" Partially Threaded - UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00453 1/4"-20 11" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00454 1/4"-20 12" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00399 1/4"-20 14" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00458 1/4"-20 16" Partially Threaded ASME B18.2.1 UNC - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00641 1/4"-28 3/8" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00642 1/4"-28 1/2" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00644 1/4"-28 5/8" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00645 1/4"-28 3/4" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00646 1/4"-28 7/8" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00647 1/4"-28 1" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00648 1/4"-28 1 1/8" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00643 1/4"-28 1 1/4" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00308 1/4"-28 1 1/4" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00650 1/4"-28 1 3/8" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00649 1/4"-28 1 1/2" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00309 1/4"-28 1 1/2" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00652 1/4"-28 1 3/4" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00310 1/4"-28 1 3/4" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00651 1/4"-28 2" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00311 1/4"-28 2" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01134 1/4"-28 2 1/4" Fully Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00312 1/4"-28 2 1/4" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00653 1/4"-28 2 1/2" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00313 1/4"-28 2 1/2" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01135 1/4"-28 2 3/4" Fully Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00993 1/4"-28 2 3/4" Partially Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00654 1/4"-28 3" Fully Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00314 1/4"-28 3" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00994 1/4"-28 3 1/4" Partially Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01136 1/4"-28 3 1/2" Fully Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00315 1/4"-28 3 1/2" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00995 1/4"-28 3 3/4" Partially Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01137 1/4"-28 4" Fully Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00316 1/4"-28 4" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00996 1/4"-28 4 1/2" Partially Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00317 1/4"-28 5" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00997 1/4"-28 5 1/2" Partially Threaded - UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00319 1/4"-28 6" Partially Threaded ASME B18.2.1 UNF - 5/32" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00764 5/16"-18 3/8" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00765 5/16"-18 1/2" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00998 5/16"-18 9/16" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00766 5/16"-18 5/8" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00767 5/16"-18 3/4" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01325 5/16"-18 3/4" Fully Threaded ASME B18.2.1 UNC - 13/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00768 5/16"-18 7/8" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00769 5/16"-18 1" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01326 5/16"-18 1" Fully Threaded ASME B18.2.1 UNC - 13/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00770 5/16"-18 1 1/8" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00771 5/16"-18 1 1/4" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01327 5/16"-18 1 1/4" Fully Threaded ASME B18.2.1 UNC - 13/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00509 5/16"-18 1 3/8" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00772 5/16"-18 1 1/2" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00510 5/16"-18 1 1/2" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01328 5/16"-18 1 1/2" Partially Threaded ASME B18.2.1 UNC - 13/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00660 5/16"-18 1 5/8" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00511 5/16"-18 1 5/8" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
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