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Online literature contains the most current information available.
Unit of Measure

Thread Size

N/A .112-40 (#4-40)

Type

N/A Jacking - SCBJ

Thread Code

N/A 440

Screw Length Code

N/A 8

Min. Sheet Thickness

N/A .040 in

Hole Size in Sheet + 0.003 - 0.000

N/A .112 in

E ± .010

N/A .250 in a1271.jpg

H Nom.

N/A .080 in

L - Length ± .015

N/A .500 in

T Nom.

N/A .410 in

Driver Size

N/A #1 Phillips

Min. Dist. Hole C/L to Edge

N/A .130 in
Thread Specification1 N/A ANSI B1.1, 2A

Material

N/A Heat-Treated Carbon Steel

Finish

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

Finish Spring

N/A Natural Finish

For Use in Sheet Hardness

N/A HRB 80 or Less (Hardness Rockwell “B” Scale) / HB 150 or Less (Hardness Brinell)

CAD Supplier

N/A PennEngineering® (PEM®)
  • 1 As with all external plated threads, Class 2A/6g, the maximum major and pitch, after plating, may equal basic sizes and be gauged to Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.