---
product_id: 55810251
title: "Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI"
brand: "brand: pem"
price: "£29.73"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/55810251-pem-floating-self-clinching-fasteners-type-a4-as-ac-unified
store_origin: GB
region: United Kingdom
---

# Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI

**Brand:** brand: pem
**Price:** £29.73
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI by brand: pem
- **How much does it cost?** £29.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/55810251-pem-floating-self-clinching-fasteners-type-a4-as-ac-unified)

## Best For

- brand: pem enthusiasts

## Why This Product

- Trusted brand: pem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

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).

## Features

- About this item
- Thread Size: .112-40 (#4-40)
- Thread Type: Non-Locking
- Thread Code: 440
- Fastener Material: Steel
- ›See more product details

## Images

![Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI - Image 1](https://images-na.ssl-images-amazon.com/images/I/212qdWSQvJL.jpg)
![Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI - Image 2](https://images-na.ssl-images-amazon.com/images/I/413kD4OlXrL.jpg)
![Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI - Image 3](https://images-na.ssl-images-amazon.com/images/I/31WKqXzjZYL.jpg)
![Pem Floating Self-Clinching Fasteners - Type A4/AS/AC - Unified, AS-440-1ZI - Image 4](https://images-na.ssl-images-amazon.com/images/I/51vgTmBmeoL.jpg)

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**Shop now:** [https://www.desertcart.co.uk/products/55810251-pem-floating-self-clinching-fasteners-type-a4-as-ac-unified](https://www.desertcart.co.uk/products/55810251-pem-floating-self-clinching-fasteners-type-a4-as-ac-unified)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-30*