Hex Nuts

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Hex Nuts

Hex Nuts are the most common type of nut, featuring a six-sided design that provides excellent wrenching surfaces for easy installation and removal. At Skdin, we offer high-quality Hex Nuts in various grades, materials, and finishes for a wide range of industrial, construction, and manufacturing applications. These versatile nuts provide reliable fastening when used with matching bolts and are available in standard, heavy, and jam nut configurations. Our hex nuts are manufactured to precise standards, ensuring consistent thread quality and dimensional accuracy. Explore our selection to find the perfect hex nuts for your fastening requirements.

System of Measurement
Inch Metric
Thread Size
0-80 00-90 00-96 000-120 0000-160 1 1/2"-12 1 1/2"-6 1 1/2"-8 1 1/4"-12 1 1/4"-7 1 1/4"-8 1 1/8"-12 1 1/8"-7 1 1/8"-8 1 3/4"-12 1 3/4"-5 1 3/4"-8 1 3/8"-12 1 3/8"-6 1 3/8"-8 1 5/8"-12 1 5/8"-8 1 7/8"-12 1 7/8"-8 1"-12 1"-14 1"-8 1-64 1-72 1/2"-13 1/2"-20 1/2"-28 1/4"-20 1/4"-28 1/4"-32 10-24 10-32 11/16"-24 11/16"-27 12-24 12-28 2 1/2"-12 2 1/2"-4 2 1/4"-12 2 1/4"-4 1/2 2 1/4"-8 2"-12 2"-4 1/2 2"-8 2-56 2-64 3"-12 3-48 3-56 3/4"-10 3/4"-16 3/4"-20 3/8"-16 3/8"-24 3/8"-32 4-36 4-40 4-48 5-40 5-44 5/16"-18 5/16"-24 5/16"-32 5/8"-11 5/8"-18 5/8"-24 6-32 6-40 7/16"-14 7/16"-20 7/16"-28 7/8"-14 7/8"-20 7/8"-9 8-32 8-36 9/16"-12 9/16"-18 M1 M1.2 M1.4 M1.6 M1.7 M1.8 M10 M12 M14 M16 M18 M2 M2.3 M2.5 M2.6 M20 M22 M24 M27 M3 M3.5 M30 M33 M36 M39 M4 M42 M45 M48 M5 M52 M56 M6 M60 M64 M7 M72 M8
Material
17-4 PH Stainless Steel 18-8 Stainless Steel 316 Stainless Steel 400 Nickel 410 Stainless Steel 6061 Aluminum A286 Stainless Steel Acetal Plastic Alloy 20 Stainless Steel Black Corrosion-Resistant-Coated 6061 Aluminum Black Corrosion-Resistant-Coated Steel Black-Oxide 18-8 Stainless Steel Black-Oxide 316 Stainless Steel Black-Oxide Steel Blue Dyed Steel Blue PTFE-Coated Steel Brass Bumax 88 Stainless Steel C276 Nickel Cadmium Yellow-Chromate Plated Steel Ceramic Fiberglass Galvanized Steel Glass-Filled Nylon Plastic Grade 2 Titanium Hot-Dipped Galvanized Steel Nickel-Plated Brass Nylon 6/6 Plastic PEEK Plastic PTFE Plastic PTFE-Coated 18-8 Stainless Steel PVC Plastic PVDF Plastic Polycarbonate Plastic Polypropylene Plastic Silicon Bronze Steel Zinc Yellow-Chromate Plated Steel Zinc-Flake-Coated Steel Zinc-Plated Steel
Width
1/16" 5/64" 3/32" 7/64" 1/8" 5/32" 3/16" 1/4" 17/64" 5/16" 11/32" 3/8" 27/64" 7/16" 15/32" 1/2" 33/64" 17/32" 9/16" 19/32" 5/8" 11/16" 45/64" 3/4" 49/64" 25/32" 0.863" 7/8" 29/32" 59/64" 15/16" 61/64" 1" 1 1/32" 1.047" 1 1/16" 1 7/64" 1 1/8" 1.231" 1 1/4" 1 19/64" 1 5/16" 1.416" 1 7/16" 1 15/32" 1 31/64" 1 1/2" 1.6" 1 5/8" 1 11/16" 1 3/4" 1 13/16" 1 7/8" 1 15/16" 1.969" 2" 2 1/16" 2 3/16" 2 1/4" 2 3/8" 2 7/16" 2 9/16" 2 5/8" 2 3/4" 2 13/16" 2 15/16" 3" 3 1/8" 3 3/8" 3 1/2" 3 3/4" 3 7/8" 4 1/2" 2.5 mm 3 mm 3.2 mm 3.5 mm 3.9 mm 4 mm 4.5 mm 4.8 mm 4.9 mm 5 mm 5.32 mm 5.4 mm 5.5 mm 6 mm 6.78 mm 6.8 mm 6.9 mm 7 mm 7.5 mm 7.78 mm 7.8 mm 7.9 mm 8 mm 9.78 mm 9.9 mm 10 mm 11 mm 12 mm 12.73 mm 12.85 mm 12.9 mm 13 mm 14 mm 14.8 mm 15.85 mm 16 mm 17 mm 17.74 mm 17.9 mm 18 mm 19 mm 21 mm 22 mm 24 mm 27 mm 30 mm 32 mm 33 mm 36 mm 41 mm 46 mm 49 mm 50 mm 55 mm 60 mm 65 mm 70 mm 75 mm 80 mm 85 mm 90 mm 100 mm 105 mm
Height
1/32" 3/64" 1/16" 5/64" 3/32" 7/64" 1/8" 9/64" 5/32" 11/64" 3/16" 13/64" 7/32" 15/64" 1/4" 17/64" 9/32" 19/64" 5/16" 21/64" 11/32" 23/64" 3/8" 25/64" 13/32" 27/64" 7/16" 0.484" 31/64" 1/2" 33/64" 17/32" 35/64" 9/16" 0.609" 39/64" 41/64" 21/32" 11/16" 23/32" 0.734" 47/64" 3/4" 49/64" 25/32" 27/32" 0.859" 55/64" 7/8" 29/32" 31/32" 0.984" 63/64" 1" 1 1/32" 1 1/16" 1 3/32" 1 7/64" 1 9/64" 1 5/32" 1 11/64" 1 3/16" 1 7/32" 1.219" 1 1/4" 1 9/32" 1 5/16" 1 11/32" 1 13/32" 1 29/64" 1 15/32" 1 1/2" 1 19/32" 1 5/8" 1 21/32" 1 23/32" 1 3/4" 1 27/32" 1 31/32" 2" 2 1/64" 2 13/64" 2 29/64" 0.8 mm 1 mm 1.2 mm 1.3 mm 1.4 mm 1.6 mm 1.7 mm 1.8 mm 2 mm 2.2 mm 2.4 mm 2.5 mm 2.7 mm 2.8 mm 2.9 mm 3 mm 3.2 mm 3.5 mm 4 mm 4.3 mm 4.4 mm 4.9 mm 5 mm 5.2 mm 5.4 mm 5.5 mm 6 mm 6.3 mm 6.4 mm 6.5 mm 6.8 mm 7 mm 8 mm 8.4 mm 9 mm 9.8 mm 10 mm 10.54 mm 10.8 mm 11 mm 12 mm 13 mm 13.5 mm 14 mm 14.3 mm 14.8 mm 15 mm 16 mm 16.5 mm 17 mm 18 mm 19 mm 19.5 mm 20 mm 20.7 mm 21 mm 22 mm 22.5 mm 22.7 mm 23 mm 24 mm 24.7 mm 26 mm 27 mm 27.4 mm 28 mm 29 mm 30 mm 31 mm 33 mm 34 mm 36 mm 38 mm 39 mm 42 mm 45 mm 48 mm 52 mm 56 mm 58 mm 64 mm
Thread Type
Metric UN UNC UNEF UNF UNS
Thread Direction
Left Hand Right Hand Right Hand, Left Hand
Thread Pitch
0.25 mm 0.3 mm 0.35 mm 0.4 mm 0.45 mm 0.5 mm 0.6 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 3.5 mm 4 mm 4.5 mm 5 mm 5.5 mm 6 mm
Fastener Strength Grade/Class
ASTM Grade 2H ASTM Grade 7 ASTM Grade 8 ASTM Grade 8M ASTM Grade C ASTM Grade DH Class 04 Class 10 Class 12 Class 5 Class 6 Class 8 Grade 2 Grade 5 Grade 8 Grade 9
Part Number Thread Size Thread Type Thread Fit Thread Direction Width Height Drive Style Nut Type Specifications Met Material
0861FA00042 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Black-Oxide Steel
0874FA00006 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Hot-Dipped Galvanized Steel
0861FA00066 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Steel
0861FA00015 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Zinc-Plated Steel
0893FA00004 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASTM A194 316 Stainless Steel
0881FA00067 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASTM F594 18-8 Stainless Steel
0888FA00074 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex ASTM F594 316 Stainless Steel
0871FA00013 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex Fed. Spec. FF-N-836, MS51967-21 Black-Oxide Steel
0871FA00029 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex Fed. Spec. FF-N-836, MS51967-21 Cadmium Yellow-Chromate Plated Steel
0884FA00009 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex Fed. Spec. FF-N-836, MS51971-7, Fed. Spec. QQ-P-35 18-8 Stainless Steel
0866FA00009 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex MS51967-20; Fed. Spec. FF-N-836 Cadmium Yellow-Chromate Plated Steel
0881FA00050 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - 18-8 Stainless Steel
0888FA00063 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - 316 Stainless Steel
0917FA00005 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - 400 Nickel
0881FA00110 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Black-Oxide 18-8 Stainless Steel
0888FA00023 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Black-Oxide 316 Stainless Steel
0868FA00086 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Black-Oxide Steel
0908FA00037 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Brass
0918FA00005 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - C276 Nickel
0900FA00006 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Fiberglass
0915FA00010 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Grade 2 Titanium
0897FA00023 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Nylon 6/6 Plastic
0913FA00027 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Silicon Bronze
0868FA00017 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Steel
0868FA00067 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Zinc Yellow-Chromate Plated Steel
0868FA00046 5/8"-11 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Zinc-Flake-Coated Steel
0974FA00031 5/8"-11 UNC Class 2B Right Hand 15/16" 9/16" External Hex Hex - 316 Stainless Steel
0879FA00006 5/8"-11 UNC Class 2B Right Hand 15/16" 11/16" External Hex Hex - Cadmium Yellow-Chromate Plated Steel
0960FA00004 5/8"-11 UNC Class 2B Right Hand 15/16" 27/32" External Hex Hex SAE J995 Steel
0939FA00004 5/8"-11 UNC Class 2B Right Hand 61/64" 3/8" External Hex Hex - Nylon 6/6 Plastic
0892FA00010 5/8"-11 UNC Class 2B Right Hand 1" 33/64" External Hex Hex - Bumax 88 Stainless Steel
0954FA00002 5/8"-11 UNC Class 2B Right Hand 1.047" 0.609" External Hex Hex ASTM A563 Black-Oxide Steel
0964FA00011 5/8"-11 UNC Class 2B Right Hand 1 1/16" 23/64" External Hex Hex ASME B18.2.2 Steel
0964FA00005 5/8"-11 UNC Class 2B Right Hand 1 1/16" 23/64" External Hex Hex ASME B18.2.2, ASTM A194 Zinc-Plated Steel
0966FA00007 5/8"-11 UNC Class 2B Right Hand 1 1/16" 23/64" External Hex Hex - 18-8 Stainless Steel
0965FA00021 5/8"-11 UNC Class 2B Right Hand 1 1/16" 23/64" External Hex Hex - Black-Oxide Steel
0967FA00006 5/8"-11 UNC Class 2B Right Hand 1 1/16" 23/64" External Hex Hex - Brass
0965FA00009 5/8"-11 UNC Class 2B Right Hand 1 1/16" 23/64" External Hex Hex - Steel
0949FA00010 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASME B18.2.2 Steel
0949FA00029 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASME B18.2.2 Zinc-Plated Steel
0944FA00086 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASME B18.2.2, ASTM A194 Zinc Yellow-Chromate Plated Steel
0956FA00011 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 18-8 Stainless Steel
0957FA00005 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 316 Stainless Steel
0944FA00059 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 Black-Oxide Steel
0944FA00002 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 Blue PTFE-Coated Steel
0944FA00066 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 Hot-Dipped Galvanized Steel
0944FA00034 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 Steel
0958FA00003 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A194 Steel
0955FA00002 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A563 Black-Oxide Steel
0955FA00016 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A563 Hot-Dipped Galvanized Steel
0954FA00008 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A563 Hot-Dipped Galvanized Steel
0955FA00005 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A563 Steel
0954FA00015 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex ASTM A563 Steel
0950FA00018 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - 18-8 Stainless Steel
0951FA00018 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - 316 Stainless Steel
0917FA00012 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - 400 Nickel
0952FA00014 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - Brass
0953FA00005 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - Silicon Bronze
0946FA00015 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - Steel
0946FA00005 5/8"-11 UNC Class 2B Right Hand 1 1/16" 39/64" External Hex Hex - Zinc-Plated Steel
0974FA00013 5/8"-11 UNC Class 2B Right Hand, Left Hand 15/16" 25/64" External Hex Hex - Galvanized Steel
0974FA00005 5/8"-11 UNC Class 2B Right Hand, Left Hand 15/16" 25/64" External Hex Hex - Steel
0900FA00016 5/8"-18 UNC Class 2B Right Hand 15/16" 35/64" External Hex Hex - Fiberglass
0931FA00023 5/8"-18 UNF Class 2B Left Hand 15/16" 3/8" External Hex Hex - 18-8 Stainless Steel
0935FA00031 5/8"-18 UNF Class 2B Left Hand 15/16" 3/8" External Hex Hex - 316 Stainless Steel
0938FA00009 5/8"-18 UNF Class 2B Left Hand 15/16" 3/8" External Hex Hex - Brass
0926FA00010 5/8"-18 UNF Class 2B Left Hand 15/16" 3/8" External Hex Hex - Steel
0924FA00011 5/8"-18 UNF Class 2B Left Hand 15/16" 3/8" External Hex Hex - Zinc-Plated Steel
0886FA00010 5/8"-18 UNF Class 2B Left Hand 15/16" 35/64" External Hex Hex - 18-8 Stainless Steel
0890FA00013 5/8"-18 UNF Class 2B Left Hand 15/16" 35/64" External Hex Hex - 316 Stainless Steel
0878FA00010 5/8"-18 UNF Class 2B Left Hand 15/16" 35/64" External Hex Hex - Steel
0865FA00028 5/8"-18 UNF Class 2B Left Hand 15/16" 35/64" External Hex Hex - Steel
0873FA00012 5/8"-18 UNF Class 2B Left Hand 15/16" 35/64" External Hex Hex - Zinc Yellow-Chromate Plated Steel
0878FA00027 5/8"-18 UNF Class 2B Left Hand 15/16" 35/64" External Hex Hex - Zinc-Plated Steel
0927FA00019 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex ASME B18.2.2 Steel
0921FA00022 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex ASME B18.2.2 Steel
0927FA00063 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex ASME B18.2.2 Zinc Yellow-Chromate Plated Steel
0927FA00040 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex ASME B18.2.2 Zinc-Plated Steel
0921FA00049 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex ASME B18.2.2 Zinc-Plated Steel
0932FA00004 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex Fed. Spec. FF-N-836, MS35691-55 18-8 Stainless Steel
0928FA00024 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - 18-8 Stainless Steel
0928FA00041 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - Black-Oxide 18-8 Stainless Steel
0936FA00013 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - Brass
0925FA00072 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - Steel
0925FA00126 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - Zinc-Plated Steel
0934FA00010 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - -
0934FA00028 5/8"-18 UNF Class 2B Right Hand 15/16" 3/8" External Hex Hex - -
0911FA00014 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 6061 Aluminum
0861FA00043 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Black-Oxide Steel
0861FA00076 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Steel
0861FA00016 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex ASME B18.2.2 Zinc-Plated Steel
0881FA00071 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex ASTM F594 18-8 Stainless Steel
0888FA00084 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex ASTM F594 316 Stainless Steel
0871FA00014 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex Fed. Spec. FF-N-836, MS51968-21 Black-Oxide Steel
0871FA00026 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex Fed. Spec. FF-N-836, MS51968-21 Cadmium Yellow-Chromate Plated Steel
0866FA00010 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex MS51968-20; Fed. Spec. FF-N-836 Cadmium Yellow-Chromate Plated Steel
0881FA00038 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex - 18-8 Stainless Steel
0888FA00064 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex - 316 Stainless Steel
0881FA00112 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex - Black-Oxide 18-8 Stainless Steel
0888FA00024 5/8"-18 UNF Class 2B Right Hand 15/16" 35/64" External Hex Hex - Black-Oxide 316 Stainless Steel
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