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Online literature contains the most current information available.
  • Shoulder on retainer provides positive stop during installation.
  • Available in self-clinching, flaring, or floating mounting styles.
  • Available with knurled or un-knurled metal cap, black metal cap, or a custom color plastic cap.
Unit of Measure

Thread Size

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


N/A Knurled Cap - PF11M

Thread Code

N/A 440

Screw Length Code

N/A 0

A Max.

N/A .036 in a1098.jpg

Min. Sheet Thickness

N/A .036 in

Hole Size in Sheet + 0.003 - 0.000

N/A .219 in

C Max.

N/A .218 in

E ± .010

N/A .417 in

G ± .025

N/A .170 in

P ± .025

N/A .000 in

T1 Nom.

N/A .310 in

T2 Nom.

N/A .450 in

Driver Size

N/A Slotted/#1 Phillips a1100.jpg

Min. Dist. Hole C/L to Edge

N/A .28 in
Thread Specification1 N/A ANSI B1.1, 2A

Material Knob

N/A Aluminum

Material Retainer

N/A Heat-Treated Carbon Steel

Material Screw

N/A Heat-Treated Carbon Steel

Material Spring

N/A 300 Series Stainless Steel

Finish Knob

N/A Natural Finish

Finish Retainer

N/A Bright nickel over copper flash per ASTM B689

Finish Screw

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 View

N/A Fastened

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