AC-440-1

Floating Self-Clinching Fasteners A4, AS, AC

AC-440-1

Floating Self-Clinching Fasteners A4, AS, AC

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 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).

仕様

Thread Code.jp
440
ねじ径
0.112-40 (#4-40), #4-40
ねじの仕様
2B, ANSI B1.1, 内部
Shank Code
1
ファスナー材質
300シリーズステンレススチール
Fastener Materials – Nut
300 Series Stainless Steel
Fastener Materials – Retainer
300 Series Stainless Steel
Standard Finish – Retainer & Nut
Passivated and/or tested per ASTM A380
For Use in Sheet Hardness
HRB 70 / HB 125 or Less
Float
.015” minimum, in all directions from center, .030” total
Product Category
Floating Self-Clinching Fasteners A4, AS, AC
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103680
Thread Type
Non-Locking
ブランド
PEM
ファスナーの特徴
フローティング
PEM®製品
ALA
製品
ナット
技術
セルフクリンチ
ユニット
統一
A Shank Max
0.038インチ
E ± .015_in
.360in
Hole Size in Sheet + .003 – .000_in
.290in
Min. Dist. Hole C/L to Edge_in
.300in
Min. Sheet Thickness_in
.038in
C Max._in
.289in
D Max._in
.290in
T1 Max._in
.130in

リソース

データシート

ala-ac-as-las-lac-unified
TYPE THREAD CODE SHANK CODE TEST SHEET MATERIAL INSTALLATION (lbs.) RETAINER PUSHOUT (lbs.) RETAINER TORQUE-OUT (in. lbs.)
AC, AS, LAS, LAC 440 1 5052-H34 Aluminum 1500 215 65
AC, AS, LAS, LAC 440 2 5052-H34 Aluminum 2000 225 80
AC, AS, LAS, LAC 440 1 Cold-Rolled Steel 3000 300 85
AC, AS, LAS, LAC 440 2 Cold-Rolled Steel 3000 300 150

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