Zygology
Zygology Ltd
Unit 7, Thame 40 Jane Morbey Road
Thame Oxon OX9 3RR
Phone: 0808 123 1221
Fax: +44 1844 266021
Email: sales@zygology.com
Web Address: www.zygology.com
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  • Low cost design.
  • Small, compact and low profile design for limited access areas.
  • Two screw lengths.
  • Universal slot/Phillips recess standard.
Unit of Measure

Specifications

Thread Size

 .112-40 (#4-40)

Type

 PFHV

Thread Code

 440

Screw Length Code

 1

A (Shank) Max.

 .036 in a1266.jpg

Min. Sheet Thickness

 .036 in

Hole Size in Sheet + 0.003 - 0.000

 .203 in

C Max.

 .202 in

E ± .010

 .260 in

G ± .025

 .316 in

H ± .005

 .080 in

P ± .025

 .095 in

T1 Nom.

 .260 in

T2 Nom.

 .436 in

Driver Size

 Slotted/#1 Phillips a1268.jpg

Min. Dist. Hole C/L to Edge

 .210 in
Thread Specification1 ANSI B1.1, 2A

Material Retainer

 Carbon Steel

Material Screw

 Heat-Treated Carbon Steel

Finish Retainer

 Bright Nickel over Copper Flash per ASTM B689

Finish Screw

 Bright nickel over copper flash per ASTM B689

For Use in Sheet Hardness

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

CAD View

 Fastened

CAD Supplier

 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.