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Metric M3-0.5 Metric M4-0.7 Metric M6-1
Metric M8-1.25 Metric M10-1.5 Metric M10-1.25
SAE 1/4"-20 (Coarse thread) SAE 1/4"-28 (Fine thread) SAE 5/16"-18 (Coarse thread)
SAE 5/16"-24 (Fine thread) SAE 3/8"-16 (Coarse thread) SAE 3/8"-24 (Fine thread)
SAE 1/2"-20 (Fine thread)
Torx Button Head Dimension Table
Size Head Diameter Head Height Torx Socket
M3-0.5 5.7mm 1.65mm T10
M4-0.7 7.6mm 2.2mm T20
M6-1 9.5mm 3mm T27
M8-1.25 13.8mm 4mm T40
1/4"-20 .434" 0.132" T27
1/4"-28 .434" 0.132" T27
5/16"-18 .537" .176" T40
5/16"-24 .537" .176" T40
3/8"-16 .651" .199" T45
3/8"-24 .651" .199" T45
1/2"-13 0.650" .200" T50
1/2"-20 0.650" .200" T50