Hi-Tech Fasteners Inc.
Hi-Tech Fasteners, Inc.
4940 Winchester Boulevard
Frederick, Maryland 21703-7400

Toll Free: 800.466.1940
Tel: 301.831.1277
Fax: 301.831.8296
Email: sales@hitechfasteners.com
Website: www.hitechfasteners.com
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  • Low-profile design satisfies many functional and cosmetic requirements.
  • Convenient, large, slotted head for tool or finger operation.
Low profile knob, spring-loaded - PF30, PF31, PF32
Captive panel screw-Low profile knob, spring-loaded PF30 2
Unit of Measure
Items Low profile knob, spring-loaded - PF30, PF31, PF32
PF30-440-30CN
Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Unified 		Low profile knob, spring-loaded - PF30, PF31, PF32
PF31-440-30CN
Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Unified 		Low profile knob, spring-loaded - PF30, PF31, PF32
PF32-440-30CN
Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Unified 		Low profile knob, spring-loaded - PF30, PF31, PF32
PF30-632-30CN
Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Unified 		Low profile knob, spring-loaded - PF30, PF31, PF32
PF31-632-30CN
Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Unified
Thread Size N/A .112-40 (#4-40) a1265_1.jpg N/A .112-40 (#4-40) a1265_1.jpg N/A .112-40 (#4-40) a1265_1.jpg N/A .138-32 (#6-32) a1265_1.jpg N/A .138-32 (#6-32) a1265_1.jpg
Type N/A PF30 N/A PF31 N/A PF32 N/A PF30 N/A PF31
Thread Code N/A 440 N/A 440 N/A 440 N/A 632 N/A 632
Screw Length Code N/A 30
A (Shank) Max. N/A .030 in a1264_1.jpg N/A 0.038 in a1264_1.jpg N/A .058 in a1264_1.jpg N/A .030 in a1264_1.jpg N/A 0.038 in a1264_1.jpg
Min. Sheet Thickness N/A .030 in N/A .040 in N/A .060 in N/A .030 in N/A .040 in
Hole Size in Sheet + 0.003 - 0.000 N/A .203 in N/A .203 in N/A .203 in N/A .219 in N/A .219 in
C Max. N/A .202 in N/A .202 in N/A .202 in N/A .218 in N/A .218 in
E ± .010 N/A .406 in N/A .406 in N/A .406 in N/A .438 in N/A .438 in
G ± .015 N/A .300 in
H ± .005 N/A .202 in
T1 Max. N/A .325 in
T2 Nom. N/A .595 in
Min. Dist. Hole C/L to Edge1 N/A .260 in N/A .260 in N/A .260 in N/A .28 in N/A .28 in
Thread Specification2 N/A ANSI B1.1, 2A
Material Retainer N/A Carbon Steel
Material Screw N/A Heat-Treated Carbon Steel N/A Heat-Treated Carbon Steel N/A Heat-Treated Carbon Steel N/A Carbon Steel N/A Carbon Steel
Material Spring N/A 300 Series Stainless Steel
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
Optional Finish3 N/A
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®)
Inventory N/A {0} N/A {0} N/A {0} N/A {0} N/A {0}
  • 1 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 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.