Catalog
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CAD (0)
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- 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 .250-20 (1/4-20) |
Type |
N/A Knurled Cap - PF11 |
Thread Code |
N/A 0420 |
Screw Length Code |
N/A 2 |
A (Shank) Max. |
N/A
.036 in
![]() Loading zoom |
Min. Sheet Thickness |
N/A .036 in |
Hole Size in Sheet + 0.003 - 0.000 |
N/A .375 in |
C Max. |
N/A .374 in |
E ± .010 |
N/A .575 in |
G ± .025 |
N/A .410 in |
P ± .025 |
N/A .120 in |
T1 Nom. |
N/A .530 in |
T2 Nom. |
N/A .790 in |
Driver Size |
N/A Slotted/#3 Phillips |
Min. Dist. Hole C/L to Edge |
N/A .460 in |
Standard Finish |
N/A
Knob - Black Anodize Retainer - Bright nickel over copper flash per ASTM B689 Screw - Black nitride, AMS2753, Section 3 Spring - Natural Finish |
CAD View |
N/A Fastened |
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 400 Series Stainless 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 Passivated and/or tested per ASTM A380 |
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) |
Optional Finish2 |
N/A
Knob (aluminum) – Black Anodize Screw (steel and stainless) – Black Nitride |
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
- 2 “BL” suffix will be added to part number to designate DuraBlack™ finish.