Thread Size |
N/A .250-20 (1/4-20) |
Type |
N/A Smooth Cap - PF12MW |
Thread Code |
N/A 0420 |
| Shank Code1 | N/A 1 |
Screw Length Code |
N/A 1 |
A Max. Sheet Thickness |
N/A
.063 in
 |
B Min. |
N/A .128 in |
D Hole Size in Sheet + 0.003 - 0.001 |
N/A .413 in |
E ± .010 |
N/A .575 in |
G Nom. |
N/A .350 in |
H Min. |
N/A .531 in |
L1 Nom. |
N/A 0.157 in |
L2 Max. |
N/A .140 in |
T1 Nom. |
N/A .530 in |
T2 Nom. |
N/A .790 in |
Driver Size |
N/A
Slotted/#3 Phillips
 |
Min. Float |
N/A .081 in |
W Nom. |
N/A .468 in |
| Thread Specification2 | N/A ANSI B1.1, 2A |
Material Knob |
N/A Aluminum |
Material Retainer |
N/A Aluminum |
Material Screw |
N/A Heat-Treated Carbon Steel |
Material Spring |
N/A 300 Series Stainless Steel |
Material Washer |
N/A 300 Series Stainless Steel |
Finish Knob |
N/A Natural Finish |
Finish Retainer |
N/A Natural finish |
Finish Screw |
N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless |
Finish Spring |
N/A Natural Finish |
| Optional Finish3 |
N/A
Knob (aluminum) – Black Anodize Screw (steel and stainless) – Black Nitride |
CAD View |
N/A Fastened |
CAD Supplier |
N/A PennEngineering® (PEM®) |
CAD Note |
N/A Mating washers for PF11MW / PF12MW panel fasteners are not shown in 3D drawings. |
- 1 Other shank and screw lengths available.
- 2 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
- 3 “BL” suffix will be added to part number to designate DuraBlack™ finish.
