Alloy Steel Thread-Locking Socket Head Screws

168 products

Alloy Steel Thread-Locking Socket Head Screws

Our Alloy Steel Thread-Locking Socket Head Screws are manufactured to the highest industry standards, ensuring exceptional strength and performance. Whether you require the high tensile strength of alloy steel or the superior corrosion resistance of stainless steel, these fasteners are optimized for precision assembly. Ideal for use in machinery, automotive components, and structural applications, they provide a dependable solution for your most critical fastening needs. Explore our selection to find the exact specifications required for your project.

Part Number Thread Size Length Threading Specifications Met Thread Type Head Diameter Head Height Material Tensile Strength Hardness
0038FA00001 0-80 1/8" Fully Threaded ASME B18.3, ASTM A574 UNF 0.096" 0.06" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00002 0-80 3/16" Fully Threaded ASME B18.3, ASTM A574 UNF 0.096" 0.06" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00003 0-80 1/4" Fully Threaded ASME B18.3, ASTM A574 UNF 0.096" 0.06" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00004 2-56 1/8" Fully Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00005 2-56 3/16" Fully Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00006 2-56 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00007 2-56 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00008 2-56 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00009 2-56 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00010 2-56 1" Partially Threaded ASME B18.3, ASTM A574 UNC 9/64" 0.086" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00011 4-40 1/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00012 4-40 3/16" Fully Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00013 4-40 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00014 4-40 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00015 4-40 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00016 4-40 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00017 4-40 1" Partially Threaded ASME B18.3, ASTM A574 UNC 0.183" 0.112" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00018 5-40 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.205" 1/8" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00019 5-40 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 0.205" 1/8" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00020 6-32 1/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00021 6-32 3/16" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00022 6-32 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00023 6-32 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00024 6-32 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00025 6-32 5/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00026 6-32 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00027 6-32 7/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00028 6-32 1" Fully Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00029 6-32 1 1/2" Partially Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00030 6-32 2" Partially Threaded ASME B18.3, ASTM A574 UNC 0.226" 0.138" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00031 8-32 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00032 8-32 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00034 8-32 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00035 8-32 5/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00036 8-32 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00037 8-32 7/8" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00033 8-32 1" Fully Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00038 8-32 1 1/4" Partially Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00039 8-32 1 1/2" Partially Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00040 8-32 2" Partially Threaded ASME B18.3, ASTM A574 UNC 0.27" 0.164" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00041 10-24 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00042 10-24 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00043 10-24 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00044 10-24 5/8" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00045 10-24 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00046 10-24 7/8" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00047 10-24 1" Fully Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00048 10-24 1 1/2" Partially Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00049 10-24 2" Partially Threaded ASME B18.3, ASTM A574 UNC 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00050 10-32 1/4" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00051 10-32 3/8" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00052 10-32 1/2" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00053 10-32 5/8" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00054 10-32 3/4" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00055 10-32 7/8" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00056 10-32 1" Fully Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00057 10-32 1 1/4" Partially Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00058 10-32 1 1/2" Partially Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00059 10-32 1 3/4" Partially Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00060 10-32 2" Partially Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00061 10-32 2 1/2" Partially Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00062 10-32 3" Partially Threaded ASME B18.3, ASTM A574 UNF 5/16" 0.19" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00063 1/4"-20 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00064 1/4"-20 5/16" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00065 1/4"-20 3/8" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00066 1/4"-20 7/16" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00067 1/4"-20 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00068 1/4"-20 9/16" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00069 1/4"-20 5/8" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00070 1/4"-20 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00071 1/4"-20 7/8" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00072 1/4"-20 1" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00073 1/4"-20 1 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00074 1/4"-20 1 1/2" Partially Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00075 1/4"-20 1 3/4" Partially Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00076 1/4"-20 2" Partially Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00123 1/4"-20 2 1/4" Partially Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00077 1/4"-20 2 1/2" Partially Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00078 1/4"-20 3" Partially Threaded ASME B18.3, ASTM A574 UNC 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00079 1/4"-28 1/2" Fully Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00080 1/4"-28 5/8" Fully Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00081 1/4"-28 3/4" Fully Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00082 1/4"-28 7/8" Fully Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00083 1/4"-28 1" Fully Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00118 1/4"-28 1 1/4" Fully Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00120 1/4"-28 1 1/2" Partially Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00121 1/4"-28 1 3/4" Partially Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00122 1/4"-28 2" Partially Threaded ASME B18.3, ASTM A574 UNF 3/8" 1/4" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00084 5/16"-18 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00085 5/16"-18 5/8" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00086 5/16"-18 3/4" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00087 5/16"-18 7/8" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00088 5/16"-18 1" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00090 5/16"-18 1 1/4" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00091 5/16"-18 1 1/2" Fully Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00089 5/16"-18 1 3/4" Partially Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00092 5/16"-18 2" Partially Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00093 5/16"-18 2 1/2" Partially Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00094 5/16"-18 3" Partially Threaded ASME B18.3, ASTM A574 UNC 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
0038FA00095 5/16"-24 1/2" Fully Threaded ASME B18.3, ASTM A574 UNF 15/32" 5/16" Black-Oxide Alloy Steel 170000 psi Rockwell C37
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