Stainless Steel Hex Drive Flat Head Screws

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Stainless Steel Hex Drive Flat Head Screws

Stainless 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 ASME B18.3, ASTM F879 ASME B18.3, ASTM F879, MIL-DTL-18240 ASTM A276 DIN 7991 DIN 7991, ISO 10642 QQ-P-35, MS24671-1 QQ-P-35, MS24671-10 QQ-P-35, MS24671-11 QQ-P-35, MS24671-13 QQ-P-35, MS24671-14 QQ-P-35, MS24671-16 QQ-P-35, MS24671-17 QQ-P-35, MS24671-19 QQ-P-35, MS24671-2 QQ-P-35, MS24671-20 QQ-P-35, MS24671-21 QQ-P-35, MS24671-22 QQ-P-35, MS24671-23 QQ-P-35, MS24671-28 QQ-P-35, MS24671-29 QQ-P-35, MS24671-3 QQ-P-35, MS24671-30 QQ-P-35, MS24671-31 QQ-P-35, MS24671-33 QQ-P-35, MS24671-4 QQ-P-35, MS24671-40 QQ-P-35, MS24671-41 QQ-P-35, MS24671-43 QQ-P-35, MS24671-5 QQ-P-35, MS24671-51 QQ-P-35, MS24671-52 QQ-P-35, MS24671-7 QQ-P-35, MS24671-8 QQ-P-35, MS24671-9
Thread Size
0-80 1-64 1-72 2-56 3-48 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 1"-8 M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10 M12 M14 M16 M20
Length
1/8" 3/16" 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 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 1/2" 2 3/4" 3" 3 1/4" 3 1/2" 3 3/4" 4" 4 1/2" 5" 5 1/2" 6" 7" 8" 10" 3 mm 4 mm 5 mm 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 90 mm 100 mm 110 mm 120 mm 140 mm
Material
18-8 Stainless Steel 316 Stainless Steel
Threading
Fully Threaded Partially Threaded
Head Diameter
0.138" 0.168" 0.197" 0.212" 0.226" 0.255" 0.281" 0.307" 0.359" 0.411" 0.438" 0.531" 0.656" 0.781" 0.844" 0.937" 0.938" 1.188" 1.438" 1.938" 4 mm 5 mm 6 mm 7 mm 8 mm 10 mm 12 mm 16 mm 20 mm 24 mm 27 mm 30 mm 36 mm
Head Height
0.035" 0.044" 0.047" 0.054" 0.059" 0.064" 0.066" 0.068" 0.073" 0.076" 0.083" 0.084" 0.089" 0.09" 0.097" 0.105" 0.112" 0.12" 0.127" 0.134" 0.157" 0.161" 0.181" 0.198" 0.234" 0.251" 0.324" 0.396" 0.54" 1.2 mm 1.3 mm 1.5 mm 1.6 mm 1.7 mm 1.9 mm 2 mm 2.2 mm 2.3 mm 2.8 mm 3.3 mm 3.5 mm 4.2 mm 4.4 mm 5.5 mm 6.5 mm 7 mm 7.5 mm 8.5 mm
Thread Pitch
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
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" 1"
Thread Type
Metric UNC UNF
Finish
Black Oxide Black-Oxide, Passivated Passivated
Drive Size
0.035" 0.050" 1.3 mm 1.5 mm 1/16" 1/2" 1/4" 1/8" 10 mm 12 mm 2 mm 2.5 mm 3 mm 3/16" 3/32" 3/8" 4 mm 5 mm 5/16" 5/32" 5/64" 5/8" 6 mm 7/32" 8 mm
Tensile Strength
70000 psi 100000 psi
Show more▼
Part Number Thread Size Length Threading Specifications Met Thread Type Head Diameter Head Height Material Tensile Strength Hardness
0314FA00025 1/4"-20 1 3/8" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00236 1/4"-20 1 3/8" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00237 1/4"-20 1 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00404 1/4"-20 1 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00140 1/4"-20 1 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0314FA00238 1/4"-20 1 1/2" Fully Threaded - UNC 0.531" 0.105" 316 Stainless Steel 70000 psi Rockwell B70
0317FA00024 1/4"-20 1 1/2" Partially Threaded QQ-P-35, MS24671-33 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Not Rated
0312FA00444 1/4"-20 1 1/2" Partially Threaded - UNC 0.531" 0.105" 18-8 Stainless Steel 70000 psi Rockwell B70
0314FA00026 1/4"-20 1 5/8" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00238 1/4"-20 1 5/8" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00239 1/4"-20 1 3/4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00141 1/4"-20 1 3/4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00377 1/4"-20 1 3/4" Partially Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00445 1/4"-20 1 3/4" Partially Threaded - UNC 0.531" 0.105" 18-8 Stainless Steel 70000 psi Rockwell B70
0312FA00075 1/4"-20 1 7/8" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00240 1/4"-20 2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00142 1/4"-20 2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00378 1/4"-20 2" Partially Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00446 1/4"-20 2" Partially Threaded - UNC 0.531" 0.105" 18-8 Stainless Steel 70000 psi Rockwell B70
0312FA00241 1/4"-20 2 1/4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00027 1/4"-20 2 1/4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00242 1/4"-20 2 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00406 1/4"-20 2 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00143 1/4"-20 2 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0314FA00028 1/4"-20 2 3/4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00243 1/4"-20 2 3/4" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00244 1/4"-20 3" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00144 1/4"-20 3" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00245 1/4"-20 3 1/4" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00246 1/4"-20 3 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00029 1/4"-20 3 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00247 1/4"-20 4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00030 1/4"-20 4" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00248 1/4"-20 4 1/2" Fully Threaded ASME B18.3 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00249 1/4"-20 5" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00174 1/4"-20 5" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00250 1/4"-20 6" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00175 1/4"-20 6" Fully Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00076 1/4"-20 7" Partially Threaded ASME B18.3, ASTM F879 UNC 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00031 1/4"-28 1/4" Fully Threaded ASME B18.3 UNF 0.531" 0.12" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00251 1/4"-28 3/8" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00032 1/4"-28 3/8" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00184 1/4"-28 7/16" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00141 1/4"-28 1/2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00145 1/4"-28 1/2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00142 1/4"-28 5/8" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00146 1/4"-28 5/8" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00143 1/4"-28 3/4" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00147 1/4"-28 3/4" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00252 1/4"-28 7/8" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00144 1/4"-28 1" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00148 1/4"-28 1" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00185 1/4"-28 1 1/8" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00145 1/4"-28 1 1/4" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00033 1/4"-28 1 1/4" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00146 1/4"-28 1 1/2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00039 1/4"-28 1 1/2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00253 1/4"-28 1 3/4" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00254 1/4"-28 2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00034 1/4"-28 2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00192 1/4"-28 2 1/2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00193 1/4"-28 3" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00194 1/4"-28 3 1/2" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00195 1/4"-28 4" Fully Threaded ASME B18.3 UNF 0.531" 0.161" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00035 5/16"-18 3/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00149 5/16"-18 3/8" Partially Threaded - UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00077 5/16"-18 7/16" Fully Threaded ASME B18.3, ASTM F879 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00255 5/16"-18 1/2" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00379 5/16"-18 1/2" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00149 5/16"-18 1/2" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00078 5/16"-18 9/16" Fully Threaded ASME B18.3, ASTM F879 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00256 5/16"-18 5/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00150 5/16"-18 5/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00447 5/16"-18 5/8" Partially Threaded - UNC 0.656" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B70
0312FA00257 5/16"-18 3/4" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00380 5/16"-18 3/4" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00151 5/16"-18 3/4" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0317FA00025 5/16"-18 3/4" Fully Threaded QQ-P-35, MS24671-40 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Not Rated
0314FA00240 5/16"-18 3/4" Fully Threaded - UNC 0.656" 0.127" 316 Stainless Steel 70000 psi Rockwell B70
0312FA00448 5/16"-18 3/4" Partially Threaded - UNC 0.656" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B70
0312FA00260 5/16"-18 7/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00036 5/16"-18 7/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00259 5/16"-18 1" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00381 5/16"-18 1" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00152 5/16"-18 1" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0317FA00026 5/16"-18 1" Fully Threaded QQ-P-35, MS24671-41 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Not Rated
0314FA00241 5/16"-18 1" Fully Threaded - UNC 0.656" 0.127" 316 Stainless Steel 70000 psi Rockwell B70
0312FA00449 5/16"-18 1" Partially Threaded - UNC 0.656" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B70
0312FA00258 5/16"-18 1 1/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00037 5/16"-18 1 1/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00261 5/16"-18 1 1/4" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00153 5/16"-18 1 1/4" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0314FA00243 5/16"-18 1 1/4" Fully Threaded - UNC 0.656" 0.127" 316 Stainless Steel 70000 psi Rockwell B70
0312FA00450 5/16"-18 1 1/4" Partially Threaded - UNC 0.656" 0.127" 18-8 Stainless Steel 70000 psi Rockwell B70
0314FA00219 5/16"-18 1 3/8" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0312FA00262 5/16"-18 1 3/8" Fully Threaded ASME B18.3, ASTM F879 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0312FA00263 5/16"-18 1 1/2" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Rockwell B55
0314FA00154 5/16"-18 1 1/2" Fully Threaded ASME B18.3 UNC 0.656" 0.198" 316 Stainless Steel 70000 psi Rockwell B55
0314FA00242 5/16"-18 1 1/2" Fully Threaded - UNC 0.656" 0.127" 316 Stainless Steel 70000 psi Rockwell B70
0317FA00027 5/16"-18 1 1/2" Partially Threaded QQ-P-35, MS24671-43 UNC 0.656" 0.198" 18-8 Stainless Steel 70000 psi Not Rated
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