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Type RAS for sheet metal is a threaded right angle fastener that accepts standard unified or metric screws.
Unit of Measure

Thread Size

 .112-40 (#4-40)

Type

 RAS

Thread Code

 440

Height Code

 9

Length Code

 4
L - Length ± .0031
.121 in
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Min. Sheet Thickness

 .040 in

Hole Size in Sheet + 0.002 - 0.001

 .312 x .125 in

A ± .003

 .308 in

C Nom.

 .250 in

D Nom.

 .125 in

E ± .006

 .370 in

F - Height ± .006

 .281 in

G Nom.

 .406 in

J Nom.

 .096 in

Min. Part Face to Edge K

 .040 in
Min. Dist. Hole C/L to Edge M2 .300 in

Thread Specification

 2B per ASME B1.1

Standard Material

 Steel

Standard Finish

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

For Use in Sheet Hardness

 HRB 60 (Hardness Rockwell “B” Scale) / HB (Hardness Brinell) 107 or Less

CAD Supplier

 PennEngineering® (PEM®)

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  • 1 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”
  • 2 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.