Alloy Steel Hex Drive Flat Head Screws

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Alloy Steel Hex Drive Flat Head Screws

Alloy Steel Hex Drive Flat Head Screws are precision-engineered for applications requiring a smooth, flush finish. Manufactured from premium materials and treated for enhanced durability, these fasteners provide exceptional structural integrity. Ideal for machinery, electronics, and construction, they ensure long-term reliability in demanding environments.

System of Measurement
Inch Metric
Specifications Met
ASME B18.3 ASTM F835 ASTM F835, MS24667-1 ASTM F835, MS24667-10 ASTM F835, MS24667-11 ASTM F835, MS24667-13 ASTM F835, MS24667-14 ASTM F835, MS24667-15 ASTM F835, MS24667-2 ASTM F835, MS24667-29 ASTM F835, MS24667-3 ASTM F835, MS24667-30 ASTM F835, MS24667-31 ASTM F835, MS24667-41 ASTM F835, MS24667-5 ASTM F835, MS24667-52 ASTM F835, MS24667-8 ASTM F835, MS24667-9 DIN 7991 DIN 7991, ISO 10642
Thread Size
0-80 1-64 1-72 2-56 2-64 3-48 3-56 4-40 4-48 5-40 5-44 6-32 6-40 8-32 8-36 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 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"-12 1 1/4"-7 1 1/2"-6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M24 M30
Length
1/8" 5/32" 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" 2" 2 1/4" 2 1/2" 2 3/4" 3" 3 1/4" 3 1/2" 3 3/4" 4" 4 1/2" 5" 5 1/2" 6" 6 1/2" 7" 8" 9" 10" 11" 11 1/2" 12" 14" 4 mm 5 mm 6 mm 8 mm 10 mm 12 mm 14 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 90 mm 100 mm 110 mm 120 mm 130 mm 140 mm 160 mm
Material
Alloy Steel Black-Oxide Alloy Steel Blue-Dyed Zinc-Plated Alloy Steel Cadmium-Plated Alloy Steel Zinc-Plated Alloy Steel
Threading
Fully Threaded Partially Threaded
Head Diameter
0.138" 0.168" 0.187" 0.197" 0.226" 0.255" 0.262" 0.281" 0.307" 0.312" 0.359" 0.362" 0.411" 0.422" 0.438" 0.477" 0.531" 0.656" 0.717" 0.781" 0.844" 0.938" 1.188" 1.438" 1.688" 1.938" 2.188" 2.438" 2.938" 4 mm 5 mm 6 mm 8 mm 10 mm 12 mm 16 mm 20 mm 24 mm 27 mm 30 mm 33 mm 36 mm 39 mm 49 mm
Head Height
0.031" 0.042" 0.044" 0.047" 0.053" 0.054" 0.059" 0.064" 0.07" 0.073" 0.078" 0.081" 0.083" 0.09" 0.097" 0.099" 0.107" 0.112" 0.127" 0.134" 0.135" 0.161" 0.198" 0.234" 0.251" 0.324" 0.396" 0.468" 0.54" 0.611" 0.683" 0.827" 1.2 mm 1.5 mm 1.7 mm 2.3 mm 2.8 mm 3.3 mm 4.4 mm 5.5 mm 6.5 mm 7 mm 7.5 mm 8 mm 8.5 mm 14 mm 19.6 mm
Thread Pitch
0.4 mm 0.45 mm 0.5 mm 0.7 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
Thread Diameter
0.06" 0.073" 0.086" 0.099" 0.112" 0.125" 0.138" 0.164" 0.19" 0.216" 0.25" 0.313" 0.375" 0.438" 0.5" 0.625" 0.75" 0.875" 1" 1.125" 1.25" 1.5"
Thread Type
Metric UNC UNF UNS
Fastener Strength Grade/Class
Class 10.9 Class 12.9
Drive Size
0.035" 0.050" 1 mm 1" 1.3 mm 1.5 mm 1/16" 1/2" 1/4" 1/8" 10 mm 12 mm 14 mm 19 mm 2 mm 2.5 mm 3 mm 3/16" 3/32" 3/4" 3/8" 4 mm 5 mm 5/16" 5/32" 5/64" 5/8" 6 mm 7/32" 7/8" 8 mm 9/16"
Tensile Strength
120000 psi 130000 psi 140000 psi 170000 psi
Show more▼
Part Number Thread Size Length Threading Specifications Met Thread Type Head Diameter Head Height Material Tensile Strength Hardness
0309FA00064 0-80 1/8" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00065 0-80 3/16" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00066 0-80 1/4" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00001 0-80 5/16" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00067 0-80 3/8" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00063 0-80 1/2" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00002 0-80 5/8" Fully Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00003 0-80 3/4" Partially Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00004 0-80 1" Partially Threaded ASTM F835 UNF 0.138" 0.044" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00287 1-64 1/8" Fully Threaded ASTM F835 UNC 0.168" 0.031" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00458 1-64 3/16" Fully Threaded ASTM F835 UNC 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00459 1-64 1/4" Fully Threaded ASTM F835 UNC 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00068 1-72 1/8" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00069 1-72 3/16" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00070 1-72 1/4" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00005 1-72 5/16" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00071 1-72 3/8" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00072 1-72 1/2" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00006 1-72 5/8" Fully Threaded ASTM F835 UNF 0.168" 0.054" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00073 2-56 1/8" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00479 2-56 1/8" Fully Threaded ASTM F835 UNC 0.197" 0.064" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00075 2-56 5/32" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00074 2-56 3/16" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00480 2-56 3/16" Fully Threaded ASTM F835 UNC 0.197" 0.064" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00076 2-56 1/4" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00481 2-56 1/4" Fully Threaded ASTM F835 UNC 0.197" 0.064" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00077 2-56 5/16" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00078 2-56 3/8" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00079 2-56 7/16" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00080 2-56 1/2" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00081 2-56 5/8" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00082 2-56 3/4" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00007 2-56 7/8" Partially Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00083 2-56 1" Fully Threaded ASTM F835 UNC 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00084 2-64 1/4" Fully Threaded ASTM F835 UNF 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00085 2-64 3/8" Fully Threaded ASTM F835 UNF 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00086 2-64 1/2" Fully Threaded ASTM F835 UNF 0.197" 0.064" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00088 3-48 3/16" Fully Threaded ASTM F835 UNC 0.187" 0.042" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00087 3-48 1/4" Fully Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00482 3-48 1/4" Fully Threaded ASTM F835 UNC 0.226" 0.073" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00008 3-48 5/16" Fully Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00089 3-48 3/8" Fully Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00483 3-48 3/8" Fully Threaded ASTM F835 UNC 0.226" 0.073" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00090 3-48 1/2" Fully Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00484 3-48 1/2" Fully Threaded ASTM F835 UNC 0.226" 0.073" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00009 3-48 5/8" Fully Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00010 3-48 3/4" Fully Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00011 3-48 1" Partially Threaded ASTM F835 UNC 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00091 3-56 1/4" Fully Threaded ASTM F835 UNF 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00092 3-56 3/8" Fully Threaded ASTM F835 UNF 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00093 3-56 1/2" Fully Threaded ASTM F835 UNF 0.226" 0.073" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00094 4-40 1/8" Fully Threaded ASTM F835 UNC 0.255" 0.047" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00101 4-40 5/32" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00095 4-40 3/16" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00525 4-40 3/16" Fully Threaded ASTM F835 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00096 4-40 1/4" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00526 4-40 1/4" Fully Threaded ASTM F835 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0311FA00001 4-40 1/4" Fully Threaded ASTM F835, MS24667-1 UNC 0.255" 0.083" Cadmium-Plated Alloy Steel 140000 psi Rockwell C39
0309FA00097 4-40 5/16" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00485 4-40 5/16" Fully Threaded ASTM F835 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00098 4-40 3/8" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00532 4-40 3/8" Fully Threaded ASTM F835 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0311FA00002 4-40 3/8" Fully Threaded ASTM F835, MS24667-2 UNC 0.255" 0.083" Cadmium-Plated Alloy Steel 140000 psi Rockwell C39
0309FA00099 4-40 7/16" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00100 4-40 1/2" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00533 4-40 1/2" Fully Threaded ASTM F835 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0311FA00004 4-40 1/2" Fully Threaded ASTM F835, MS24667-3 UNC 0.255" 0.083" Cadmium-Plated Alloy Steel 140000 psi Rockwell C39
0309FA00106 4-40 9/16" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00639 4-40 5/8" Fully Threaded ASME B18.3 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0309FA00102 4-40 5/8" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00640 4-40 3/4" Fully Threaded ASME B18.3 UNC 0.255" 0.083" Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0309FA00103 4-40 3/4" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0311FA00003 4-40 3/4" Fully Threaded ASTM F835, MS24667-5 UNC 0.255" 0.083" Cadmium-Plated Alloy Steel 140000 psi Rockwell C39
0309FA00104 4-40 7/8" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00105 4-40 1" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00108 4-40 1 1/8" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00107 4-40 1 1/4" Fully Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00109 4-40 1 1/2" Partially Threaded ASTM F835 UNC 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00120 4-48 1/4" Fully Threaded ASTM F835 UNF 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00527 4-48 1/4" Fully Threaded ASTM F835 UNF 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00121 4-48 3/8" Fully Threaded ASTM F835 UNF 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00528 4-48 3/8" Fully Threaded ASTM F835 UNF 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00122 4-48 1/2" Fully Threaded ASTM F835 UNF 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00529 4-48 1/2" Fully Threaded ASTM F835 UNF 0.255" 0.083" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00012 4-48 5/8" Fully Threaded ASTM F835 UNF 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00013 4-48 3/4" Fully Threaded ASTM F835 UNF 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00014 4-48 1" Fully Threaded ASTM F835 UNF 0.255" 0.083" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00110 5-40 1/8" Fully Threaded ASTM F835 UNC 0.281" 0.053" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00111 5-40 3/16" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00112 5-40 1/4" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00530 5-40 1/4" Fully Threaded ASTM F835 UNC 0.281" 0.09" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00113 5-40 5/16" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00114 5-40 3/8" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00486 5-40 3/8" Fully Threaded ASTM F835 UNC 0.281" 0.09" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00115 5-40 1/2" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00531 5-40 1/2" Fully Threaded ASTM F835 UNC 0.281" 0.09" Zinc-Plated Alloy Steel 130000 psi Rockwell C39
0309FA00116 5-40 5/8" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00117 5-40 3/4" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00118 5-40 1" Fully Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
0309FA00015 5-40 1 1/4" Partially Threaded ASTM F835 UNC 0.281" 0.09" Black-Oxide Alloy Steel 130000 psi Rockwell C39
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