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
0309FA00423 3/4"-10 4 1/2" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00424 3/4"-10 5" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00425 3/4"-10 5 1/2" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00322 3/4"-10 6" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00028 3/4"-10 6 1/2" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00426 3/4"-10 7" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00428 3/4"-10 8" Partially Threaded ASTM F835 UNC 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00029 3/4"-16 1 1/4" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00404 3/4"-16 1 1/2" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00405 3/4"-16 1 3/4" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00406 3/4"-16 2" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00030 3/4"-16 2 1/4" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00407 3/4"-16 2 1/2" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00408 3/4"-16 3" Fully Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00412 3/4"-16 3 1/2" Partially Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00414 3/4"-16 4" Partially Threaded ASTM F835 UNF 1.438" 0.396" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00040 3/4"-16 5" Partially Threaded ASTM F835 UNF 1.438" 0.396" Alloy Steel 130000 psi Rockwell C37
0309FA00041 7/8"-14 1 1/2" Fully Threaded ASTM F835 UNF 1.688" 0.468" Alloy Steel 130000 psi Rockwell C37
0309FA00042 7/8"-14 3" Partially Threaded ASTM F835 UNF 1.688" 0.468" Alloy Steel 130000 psi Rockwell C37
0309FA00464 7/8"-9 1 1/2" Fully Threaded ASTM F835 UNC 1.688" 0.468" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00465 7/8"-9 1 3/4" Fully Threaded ASTM F835 UNC 1.688" 0.468" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00437 7/8"-9 2" Fully Threaded ASTM F835 UNC 1.688" 0.468" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00438 7/8"-9 2 1/2" Fully Threaded ASTM F835 UNC 1.688" 0.468" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00439 7/8"-9 3" Fully Threaded ASTM F835 UNC 1.688" 0.468" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00440 7/8"-9 3 1/2" Fully Threaded ASTM F835 UNC 1.688" 0.468" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00457 7/8"-9 4" Partially Threaded ASTM F835 UNC 1.688" 0.468" Alloy Steel 130000 psi Rockwell C37
0309FA00467 1"-14 2" Fully Threaded ASTM F835 UNS 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00468 1"-14 2 1/2" Fully Threaded ASTM F835 UNS 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00469 1"-14 3" Fully Threaded ASTM F835 UNS 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00466 1"-8 1 1/2" Fully Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00441 1"-8 2" Fully Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00031 1"-8 2 1/4" Fully Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00442 1"-8 2 1/2" Fully Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00443 1"-8 3" Fully Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00444 1"-8 3 1/2" Fully Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00445 1"-8 4" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00446 1"-8 4 1/2" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00447 1"-8 5" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00448 1"-8 5 1/2" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00449 1"-8 6" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00032 1"-8 7" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00450 1"-8 8" Partially Threaded ASTM F835 UNC 1.938" 0.54" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00043 1"-8 11 1/2" Partially Threaded ASTM F835 UNC 1.938" 0.54" Alloy Steel 130000 psi Rockwell C37
0309FA00470 1 1/8"-7 3" Fully Threaded ASTM F835 UNC 2.188" 0.611" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00471 1 1/8"-7 4" Fully Threaded ASTM F835 UNC 2.188" 0.611" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00475 1 1/4"-12 3" Fully Threaded ASTM F835 UNF 2.438" 0.683" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00045 1 1/4"-12 3 1/2" Fully Threaded ASTM F835 UNF 2.438" 0.683" Alloy Steel 130000 psi Rockwell C37
0309FA00046 1 1/4"-12 4" Partially Threaded ASTM F835 UNF 2.438" 0.683" Alloy Steel 130000 psi Rockwell C37
0309FA00047 1 1/4"-12 4 1/2" Partially Threaded ASTM F835 UNF 2.438" 0.683" Alloy Steel 130000 psi Rockwell C37
0309FA00472 1 1/4"-7 3" Fully Threaded ASTM F835 UNC 2.438" 0.683" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00044 1 1/4"-7 3 1/2" Fully Threaded ASTM F835 UNC 2.438" 0.683" Alloy Steel 130000 psi Rockwell C37
0309FA00473 1 1/4"-7 4" Fully Threaded ASTM F835 UNC 2.438" 0.683" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00474 1 1/4"-7 5" Fully Threaded ASTM F835 UNC 2.438" 0.683" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00476 1 1/2"-6 4" Fully Threaded ASTM F835 UNC 2.938" 0.827" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00477 1 1/2"-6 5" Fully Threaded ASTM F835 UNC 2.938" 0.827" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0309FA00478 1 1/2"-6 6" Partially Threaded ASTM F835 UNC 2.938" 0.827" Black-Oxide Alloy Steel 130000 psi Rockwell C37
0310FA00151 M2 4 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00001 M2 4 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
0310FA00152 M2 5 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00153 M2 6 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00002 M2 6 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
0310FA00154 M2 8 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00003 M2 8 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
0310FA00155 M2 10 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00156 M2 12 mm Fully Threaded DIN 7991 Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00304 M2 16 mm Fully Threaded - Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00305 M2 20 mm Fully Threaded - Metric 4 mm 1.2 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00291 M2.5 4 mm Fully Threaded DIN 7991, ISO 10642 Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00004 M2.5 5 mm Fully Threaded DIN 7991 Metric 5 mm 1.5 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
0310FA00157 M2.5 5 mm Fully Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00072 M2.5 6 mm Fully Threaded DIN 7991 Metric 5 mm 1.5 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00005 M2.5 6 mm Fully Threaded DIN 7991 Metric 5 mm 1.5 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
0310FA00158 M2.5 6 mm Fully Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00073 M2.5 8 mm Fully Threaded DIN 7991 Metric 5 mm 1.5 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00006 M2.5 8 mm Fully Threaded DIN 7991 Metric 5 mm 1.5 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
0310FA00159 M2.5 8 mm Fully Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00160 M2.5 10 mm Fully Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00161 M2.5 12 mm Fully Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00162 M2.5 16 mm Partially Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00163 M2.5 20 mm Partially Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00306 M2.5 25 mm Partially Threaded - Metric 5 mm 1.5 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00164 M3 5 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00357 M3 5 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Blue-Dyed Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00040 M3 5 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00165 M3 6 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00358 M3 6 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Blue-Dyed Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00041 M3 6 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00166 M3 8 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00351 M3 8 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Blue-Dyed Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00042 M3 8 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00167 M3 10 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00352 M3 10 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Blue-Dyed Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00043 M3 10 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00168 M3 12 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00353 M3 12 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Blue-Dyed Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00044 M3 12 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00074 M3 14 mm Fully Threaded DIN 7991 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00169 M3 14 mm Fully Threaded DIN 7991, ISO 10642 Metric 6 mm 1.7 mm Black-Oxide Alloy Steel 120000 psi Rockwell C32
0310FA00075 M3 16 mm Fully Threaded DIN 7991 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 120000 psi Rockwell C32
0310FA00007 M3 16 mm Fully Threaded DIN 7991 Metric 6 mm 1.7 mm Zinc-Plated Alloy Steel 170000 psi Rockwell C39
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