Hi-Tech Fasteners Inc.
Hi-Tech Fasteners, Inc.
4940 Winchester Boulevard
Frederick, Maryland 21703-7400

Toll Free: 800.466.1940
Tel: 301.831.1277
Fax: 301.831.8296
Email: sales@hitechfasteners.com
Website: www.hitechfasteners.com
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Unit of Measure

Specifications

Thread Size

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

Type

 N/A Jacking - SCBJ

Thread Code

 N/A 440

Screw Length Code

 N/A 6

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_1.jpg

H Nom.

 N/A .080 in
L - Length ± .0151 N/A .375 in

T Nom.

 N/A .285 in

Driver Size

 N/A #1 Phillips
Min. Dist. Hole C/L to Edge2 N/A .130 in
Thread Specification3 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®)

Inventory

 N/A {0}
  • 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.
  • 3 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.