PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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  • Low-profile design satisfies many functional and cosmetic requirements.
  • Type PF50 with convenient large head and Phillips recess for tool or finger operation.
  • Available with six-lobe recess.
Unit of Measure

Specifications

Thread Size

 N/A .250-20 (1/4-20)

Type

 N/A Smooth Cap - PF62

Thread Code

 N/A 0420

Screw Length Code

 N/A 1

A (Shank) Max.

 N/A .058 in a1262unified.jpg

Min. Sheet Thickness

 N/A .060 in

Hole Size in Sheet + 0.003 - 0.000

 N/A .375 in

C Max.

 N/A .374 in

E ± .010

 N/A .625 in

G ± .025

 N/A .340 in

H ± .008

 N/A .246 in

P ± .025

 N/A .060 in

T1 Max.

 N/A .395 in

T2 Nom.

 N/A .600 in

Driver Size

 N/A #2 Phillips a1263.jpg

Min. Dist. Hole C/L to Edge

 N/A .38 in
Thread Specification1 N/A ANSI B1.1, 2A

Material Knob

 N/A Carbon Steel

Material Retainer

 N/A Carbon Steel

Material Screw

 N/A Carbon Steel

Material Spring

 N/A 300 Series Stainless Steel

Finish Knob

 N/A Bright nickel over copper flash per ASTM B689

Finish Retainer

 N/A Bright Nickel over Copper Flash per ASTM B689

Finish Screw

 N/A Bright nickel over copper flash per ASTM B689

Finish Spring

 N/A Natural Finish

For Use in Sheet Hardness

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

CAD View

 N/A Unfastened

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.