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All Categories > PEM® Brand Self-Clinching, Broaching, Surface Mount, Flare and Weld Mounted Fasteners > Nuts for Sheet Metal > Floating Nuts – Types A4, AS, AC, LA4, LAC, LAS  > Floating self-clinching fasteners A4, AS, AC > Floating Self-Clinching Fasteners A4, AS, AC - Unified > Part # AC-440-2  
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Part # AC-440-2, Floating Self-Clinching Fasteners A4, AS, AC - Unified




Locking and Non-locking Threads
These 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 fasten


Floating-Nuts-non-locking

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Floating Self-Clinching Fasteners - Types A4, AS, AC 2

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 Specifications  

Thread Size

.112-40 (#4-40)

Thread Type

Non-Locking
Locking and Non-locking Threads

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Thread Code

440

Shank Code

2

A (Shank) Max.

.054 in

Min. Sheet Thickness

.054 in

Hole Size in Sheet + .003 - .000

.290 in

C Max.

.289 in

D Max.

.290 in

E ± .015

.360 in

T1 Max.

.130 in

Min. Dist. Hole C/L to Edge

.300 in

Float

.015” minimum, in all directions from center, .030” total

Fastener Material

300 Series Stainless

Fastener Materials - Retainer

300 Series Stainless Steel

Fastener Materials - Nut

300 Series Stainless Steel

Standard Finish - Retainer & Nut

Passivated and/or tested per ASTM A380

For Use in Sheet Hardness1

HRB 70 / HB 125 or Less

Thread Specification

Internal, ANSI B1.1, 2B

CAD Supplier

PennEngineering® (PEM®)
1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

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