AC-440-1
Floating Self-Clinching Fasteners A4, AS, AC - Unified
Part Aliases: Penn Engineering 90-09655-01
Locking and Non-locking ThreadsThese fasteners provide load-bearing threads in thin sheets and permit up to .030” adjustment for mating hole misalignment.The self-clinching feature offers fast and simple assembly. The fasteners are squeezed into prepared holes using any standard press. The sheet remains flush on one side, and the fastener is permanently locked in place.Extra strength and support in assembly is obtained by the threads of the floating nut extending fully into the retainer shank (a unique PEM feature). A self-locking version of the fastener is also offered. Thread locking torque performance is equivalent to applicable NASM25027 specifications.Non-locking Type A4 and self-locking Type LA4 fasteners provide load-bearing threads in stainless steel sheets as thin as .038” with hardness up to HRB 88 on the Rockwell “B” scale.Many PEM Type AS and AC self-clinching floating fasteners correspond to sizes in US NASM45938/11 specifications. Check our web site for a complete Military Specification and National Aerospace Standards Reference Guide (Bulletin NASM).
Product Category: | |
Manufacturer: | Penn Engineering |
Manufacturer Part Number: | Penn Engineering AC-440-1 |
Thread Size: | 4-40 |
Material: | 300 Series Stainless Steel |
Thread Type: | Non-Locking |
Retainer Material: | Stainless Steel |
Nut Material: | Stainless Steel |
Animation: | View Animation |
Part Aliases: | 90-09655-01 |
SKU: | PEMAC-440-1 |
Float: | .015” minimum, in all directions from center, .030” total |
For Use in Sheet Hardness: | HRB 70 / HB 125 or Less |
Min. Sheet Thickness: | .038 in |
Shank Code: | 1 |
Standard Finish - Retainer & Nut: | Passivated and/or tested per ASTM A380 |
Thread Code: | 440 |
A (Shank) Max.: | .038 in |
C Max.: | .289 in |
D Max.: | .290 in |
E ± .015: | .360 in |
Hole Size in Sheet + .003 - .000: | .290 in |
Min. Dist. Hole C/L to Edge: | .300 in |
T1 Max.: | .130 in |
Environmental Initiative Details
Environmental Initiative: | RoHS |
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Compliant: | Unknown |
Date of this Information: | Unknown |
Notes: |