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
0244FA00773 5/16"-18 1 3/4" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00512 5/16"-18 1 3/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01138 5/16"-18 1 7/8" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00939 5/16"-18 1 7/8" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 70000 psi Not Rated
0244FA00774 5/16"-18 2" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00513 5/16"-18 2" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01329 5/16"-18 2" Partially Threaded ASME B18.2.1 UNC - 13/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00887 5/16"-18 2 1/4" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00514 5/16"-18 2 1/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00775 5/16"-18 2 1/2" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00515 5/16"-18 2 1/2" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00776 5/16"-18 2 3/4" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00516 5/16"-18 2 3/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00777 5/16"-18 3" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00517 5/16"-18 3" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01139 5/16"-18 3 1/4" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00518 5/16"-18 3 1/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00778 5/16"-18 3 1/2" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00519 5/16"-18 3 1/2" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01140 5/16"-18 3 3/4" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00520 5/16"-18 3 3/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00779 5/16"-18 4" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00521 5/16"-18 4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00522 5/16"-18 4 1/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00780 5/16"-18 4 1/2" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00523 5/16"-18 4 1/2" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00999 5/16"-18 4 3/4" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00781 5/16"-18 5" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00524 5/16"-18 5" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00948 5/16"-18 5 1/4" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 70000 psi Rockwell B70
0244FA01141 5/16"-18 5 1/2" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00525 5/16"-18 5 1/2" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00782 5/16"-18 6" Fully Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00526 5/16"-18 6" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01142 5/16"-18 6 1/2" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01000 5/16"-18 6 1/2" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01143 5/16"-18 7" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00527 5/16"-18 7" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01001 5/16"-18 7 1/2" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01144 5/16"-18 8" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00528 5/16"-18 8" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01002 5/16"-18 8 1/2" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01003 5/16"-18 9" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01004 5/16"-18 9 1/2" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01145 5/16"-18 10" Fully Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01005 5/16"-18 10" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01006 5/16"-18 10 1/2" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01007 5/16"-18 11" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01008 5/16"-18 12" Partially Threaded - UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00400 5/16"-18 14" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00401 5/16"-18 16" Partially Threaded ASME B18.2.1 UNC - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00685 5/16"-24 1/2" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00686 5/16"-24 5/8" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00687 5/16"-24 3/4" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00688 5/16"-24 7/8" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00689 5/16"-24 1" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01146 5/16"-24 1 1/8" Fully Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00690 5/16"-24 1 1/4" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00349 5/16"-24 1 1/4" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01009 5/16"-24 1 3/8" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00691 5/16"-24 1 1/2" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00350 5/16"-24 1 1/2" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00692 5/16"-24 1 3/4" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00351 5/16"-24 1 3/4" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00693 5/16"-24 2" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00352 5/16"-24 2" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00353 5/16"-24 2 1/4" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00694 5/16"-24 2 1/2" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00354 5/16"-24 2 1/2" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01010 5/16"-24 2 3/4" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00695 5/16"-24 3" Fully Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00355 5/16"-24 3" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01011 5/16"-24 3 1/4" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01147 5/16"-24 3 1/2" Fully Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00356 5/16"-24 3 1/2" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01012 5/16"-24 3 3/4" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01148 5/16"-24 4" Fully Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00357 5/16"-24 4" Partially Threaded ASME B18.2.1 UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01013 5/16"-24 4 1/2" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01014 5/16"-24 5" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01015 5/16"-24 5 1/2" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01016 5/16"-24 6" Partially Threaded - UNF - 13/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00783 3/8"-16 3/8" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00784 3/8"-16 1/2" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00785 3/8"-16 5/8" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00786 3/8"-16 3/4" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01330 3/8"-16 3/4" Fully Threaded ASME B18.2.1 UNC - 15/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00787 3/8"-16 7/8" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00788 3/8"-16 1" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01331 3/8"-16 1" Fully Threaded ASME B18.2.1 UNC - 15/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00789 3/8"-16 1 1/8" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00790 3/8"-16 1 1/4" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01332 3/8"-16 1 1/4" Fully Threaded ASME B18.2.1 UNC - 15/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00791 3/8"-16 1 3/8" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00792 3/8"-16 1 1/2" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00464 3/8"-16 1 1/2" Partially Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA01333 3/8"-16 1 1/2" Partially Threaded ASME B18.2.1 UNC - 15/64" Black-Oxide 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00661 3/8"-16 1 5/8" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00465 3/8"-16 1 5/8" Partially Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
0244FA00793 3/8"-16 1 3/4" Fully Threaded ASME B18.2.1 UNC - 15/64" 18-8 Stainless Steel 80000 psi Rockwell B70
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