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SAE J740_201110 : 2011

Countersunk Square Holes for Cutting Edges and End Bits

Standard Details

To be used on cutting edges and end bits in conjunction with No. 3 head plow bolts (Ref. ANSI B18.9) typically used on off-road self-propelled work machines as described in SAE J1116.Cutting edges are further defined in SAE J737, J739 and J1304.End bits are further defined in SAE J63.1When section thickness exceeds A in drawing 1 ( Figure 2 ) (countersunk one side) or B in drawing 4 (countersunk both sides), use counterbore with diameter D, as shown in cross section drawings 2, 5 and 6, or extended countersink C, as shown in cross section drawings 3 and 7.2The inscribed circle of the square holes shall be concentric with countersink or counterbore within 0.03 in (0.8 mm).

Cross Reference: ANSI/B18.9,J1116,J1304,J63,J737,J739

General Information

Status : Stabilized
Standard Type: Main
Document No: SAE J740_201110 : 2011
Document Year: 2011
Pages: 3

Life Cycle

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SAE J740_201110 : 2011
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