Tamper-Resistant Hex Drive Flat Head Screws

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Tamper-Resistant Hex Drive Flat Head Screws

Tamper-Resistant 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 F879M
Thread Size
4-40 6-32 8-32 10-24 10-32 1/4"-20 M3 M4 M5 M6 M8
Length
1/4" 3/8" 1/2" 5/8" 3/4" 1" 1 1/4" 1 1/2" 6 mm 8 mm 10 mm 12 mm 16 mm 20 mm 25 mm 30 mm
Threading
Fully Threaded Partially Threaded
Head Diameter
0.255" 0.307" 0.359" 0.411" 0.531" 6.71 mm 8.94 mm 11.2 mm 13.44 mm 17.91 mm
Head Height
0.059" 0.083" 0.097" 0.112" 0.127" 0.161" 1.85 mm 2.48 mm 3.1 mm 3.72 mm 4.95 mm
Thread Pitch
0.5 mm 0.7 mm 0.8 mm 1 mm 1.25 mm
Thread Diameter
0.112" 0.138" 0.164" 0.19" 0.25"
Thread Type
Metric UNC UNF
Drive Size
1/8" 3/16" 3/32" 5/32"
Tensile Strength
70000 psi 80000 psi
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Part Number Thread Size Length Threading Specifications Met Thread Type Head Diameter Head Height Material Tensile Strength Hardness
0370FA00001 4-40 1/4" Fully Threaded ASME B18.3 UNC 0.255" 0.083" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00005 4-40 3/8" Fully Threaded ASME B18.3 UNC 0.255" 0.083" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00006 4-40 1/2" Fully Threaded ASME B18.3 UNC 0.255" 0.083" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00007 6-32 1/4" Fully Threaded ASME B18.3 UNC 0.307" 0.059" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00002 6-32 3/8" Fully Threaded ASME B18.3 UNC 0.307" 0.097" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00003 6-32 1/2" Fully Threaded ASME B18.3 UNC 0.307" 0.097" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00004 6-32 3/4" Fully Threaded ASME B18.3 UNC 0.307" 0.097" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00008 8-32 3/8" Fully Threaded ASME B18.3 UNC 0.359" 0.112" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00009 8-32 1/2" Fully Threaded ASME B18.3 UNC 0.359" 0.112" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00010 8-32 3/4" Fully Threaded ASME B18.3 UNC 0.359" 0.112" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00011 8-32 1" Fully Threaded ASME B18.3 UNC 0.359" 0.112" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00012 10-24 3/8" Fully Threaded ASME B18.3 UNC 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00013 10-24 1/2" Fully Threaded ASME B18.3 UNC 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00014 10-24 3/4" Fully Threaded ASME B18.3 UNC 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00015 10-24 1" Fully Threaded ASME B18.3 UNC 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00016 10-32 3/8" Fully Threaded ASME B18.3 UNF 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00017 10-32 1/2" Fully Threaded ASME B18.3 UNF 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00018 10-32 3/4" Fully Threaded ASME B18.3 UNF 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00019 10-32 1" Fully Threaded ASME B18.3 UNF 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00020 10-32 1 1/2" Partially Threaded ASME B18.3 UNF 0.411" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00021 1/4"-20 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00022 1/4"-20 5/8" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00023 1/4"-20 3/4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00024 1/4"-20 1" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00025 1/4"-20 1 1/4" Partially Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0370FA00026 1/4"-20 1 1/2" Partially Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0371FA00001 M3 6 mm Fully Threaded ASTM F879M Metric 6.71 mm 1.85 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00002 M3 8 mm Fully Threaded ASTM F879M Metric 6.71 mm 1.85 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00003 M3 10 mm Fully Threaded ASTM F879M Metric 6.71 mm 1.85 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00004 M3 12 mm Fully Threaded ASTM F879M Metric 6.71 mm 1.85 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00005 M4 6 mm Fully Threaded ASTM F879M Metric 8.94 mm 2.48 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00006 M4 8 mm Fully Threaded ASTM F879M Metric 8.94 mm 2.48 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00007 M4 10 mm Fully Threaded ASTM F879M Metric 8.94 mm 2.48 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00008 M4 12 mm Fully Threaded ASTM F879M Metric 8.94 mm 2.48 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00009 M4 16 mm Fully Threaded ASTM F879M Metric 8.94 mm 2.48 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00010 M5 8 mm Fully Threaded ASTM F879M Metric 11.2 mm 3.1 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00011 M5 10 mm Fully Threaded ASTM F879M Metric 11.2 mm 3.1 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00012 M5 12 mm Fully Threaded ASTM F879M Metric 11.2 mm 3.1 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00013 M5 16 mm Fully Threaded ASTM F879M Metric 11.2 mm 3.1 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00014 M5 20 mm Fully Threaded ASTM F879M Metric 11.2 mm 3.1 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00015 M6 12 mm Fully Threaded ASTM F879M Metric 13.44 mm 3.72 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00016 M6 16 mm Fully Threaded ASTM F879M Metric 13.44 mm 3.72 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00017 M6 20 mm Fully Threaded ASTM F879M Metric 13.44 mm 3.72 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00018 M6 25 mm Fully Threaded ASTM F879M Metric 13.44 mm 3.72 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00019 M6 30 mm Fully Threaded ASTM F879M Metric 13.44 mm 3.72 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00020 M8 16 mm Fully Threaded ASTM F879M Metric 17.91 mm 4.95 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00021 M8 20 mm Fully Threaded ASTM F879M Metric 17.91 mm 4.95 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00022 M8 25 mm Fully Threaded ASTM F879M Metric 17.91 mm 4.95 mm 18-8 Stainless Steel 80000 psi Rockwell B96
0371FA00023 M8 30 mm Fully Threaded ASTM F879M Metric 17.91 mm 4.95 mm 18-8 Stainless Steel 80000 psi Rockwell B96
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