J740_201110 Countersunk Square Holes for Cutting Edges and End Bits
Stabilized
10/25/2011
- Features
- Issuing Committee
- Content
- 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.
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1
When 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.
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2
The inscribed circle of the square holes shall be concentric with countersink or counterbore within 0.03 in (0.8 mm).
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1
- Content
- The technical report covers technology, products, or processes which are mature and not likely to change in the foreseeable future.
- Pages
- 3
- Citation
- SAE International Technical Standard, Countersunk Square Holes for Cutting Edges and End Bits, SAE Standard J740_201110, Stabilized October 2011, Issued April 1958, https://doi.org/10.4271/J740_201110.